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, University of Notre Dame
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The R-process Alliance: Fifth Data Release from the Search for R-process-enhanced Metal-poor Stars in the Galactic Halo with the GTC
Volume 19, Issue 40 - article #11
Avrajit Bandyopadhyay
,
Rana Ezzeddine
,
Carlos Allende Prieto
,
Nima Aria
,
Shivani P. Shah
,
Timothy C. Beers
,
Anna Frebel
,
Terese T. Hansen
,
Erika M. Holmbeck
,
Vinicius M. Placco
The Astrophysical Journal Supplement
https://doi.org/10.3847/1538-4365/ad6f0f
Discovery of a Metal-Poor Red Giant Star with the Highest Ultra-Lithium Enhancement
Volume 19, Issue 33 - article #1
Jeremy Kowkabany
,
Rana Ezzeddine
,
Corinne Charbonnel
,
Ian U. Roederer
,
Ella Xi Wang
,
Yangyang Li
,
Zoe Hackshaw
,
Timothy C. Beers
,
Anna Frebel
,
Terese T. Hansen
,
Erika Holmbeck
,
Vinicius M. Placco
,
Charli M. Sakari
https://arxiv.org/abs/2209.02184
The R-Process Alliance: 2MASS J22132050–5137385, the Star with the Highest-known r-process Enhancement at [Eu/Fe] = +2.45
Volume 19, Issue 33 - article #7
Ian U. Roederer
,
Timothy C. Beers
,
Kohei Hattori
,
Vinicius M. Placco
,
Terese T. Hansen
,
Rana Ezzeddine
,
Anna Frebel
,
Erika M. Holmbeck
,
Charli M. Sakari
The Astrophysical Journal
https://doi.org/10.3847/1538-4357/ad57bf
The $R$-Process Alliance: Fifth Data Release from the Search for $R$-Process-Enhanced Metal-poor Stars in the Galactic Halo with the GTC
Volume 19, Issue 32 - article #8
Avrajit Bandyopadhyay
,
Rana Ezzeddine
,
Carlos Allende Prieto
,
Nima Aria
,
Shivani P. Shah
,
Timothy C. Beers
,
Anna Frebel
,
Terese T. Hansen
,
Erika M. Holmbeck
,
Vinicius M. Placco
,
Ian U. Roederer
,
Charli M. Sakari
https://arxiv.org/abs/2408.03731
The Fourth S-PLUS Data Release: 12-filter photometry covering $sim3000$ square degrees in the southern hemisphere
Volume 19, Issue 31 - article #2
Fabio R. Herpich
,
Felipe Almeida-Fernandes
,
Gustavo B. Oliveira Schwarz
,
Erik V. R. Lima
,
Lilianne Nakazono
,
Javier Alonso-Garc'ia
,
Marcos A. Fonseca-Faria
,
Marilia J. Sartori
,
Guilherme F. Bolutavicius
,
Gabriel Fabiano de Souza
,
Eduardo A. Hartmann
,
Liana Li
,
Luna Espinosa
,
Antonio Kanaan
,
William Schoenell
,
Ariel Werle
,
Eduardo Machado-Pereira
,
Luis A. Guti'errez-Soto
,
Tha'is Santos-Silva
,
Analia V. Smith Castelli
,
Eduardo A. D. Lacerda
,
Cassio L. Barbosa
,
H'elio D. Perottoni
,
Carlos E. Ferreira Lopes
,
Raquel Ruiz Valenc{c}a
,
Pierre Augusto Re Martho
,
Clecio R. Bom
,
Charles J. Bonatto
,
Maiara S. Carvalho
,
Vitor Cernic
,
Roberto Cid Fernandes
,
Paula Coelho
,
Ariana Cortesi
,
Barbara Cubillos Palma
,
Lia Doubrawa
,
Vincenzo Sivero Ferreira Alberice
,
Fredi Quispe Huaynasi
,
Gabriel Jacob Perin
,
Marcelo Jaque Arancibia
,
Angela Krabbe
,
Ciria Lima-Dias
,
Luis Lomel'i-N'u~nez
,
Raimundo Lopes de Oliveira
,
Amanda R. Lopes
,
Andr'e Luiz Figueiredo
,
Elismar L"osch
,
Felipe Navarete
,
Julia Mello de Oliveira
,
Roderik Overzier
,
Vinicius M. Placco
,
Fernando V. Roig
,
Mariana Rubet
,
Andr'e Santos
,
Victor Hugo Sasse
,
Julia Thaina-Batista
,
Sergio Torres-Flores
,
Timothy C. Beers
,
Alvaro Alvarez-Candal
,
Stavros Akras
,
Swayamtrupta Panda
,
Guilherme Limberg
,
Jos'e Luis Nilo Castell'on
,
Eduardo Telles
,
Paulo Afranio Lopes
,
Gissel Dayana Pardo Montaguth
,
Leandro Beraldo e Silva
,
Pedro K. Humire
,
Marcelo Borges Fernandes
,
Vin'icius Cordeiro
,
Tiago Ribeiro
,
Claudia Mendes de Oliveira
https://arxiv.org/abs/2407.20701
The S-PLUS Ultra-Short Survey: first data release
Volume 19, Issue 28 - article #6
H'elio D. Perottoni
,
Vinicius M. Placco
,
Felipe Almeida-Fernandes
,
F'abio R. Herpich
,
Silvia Rossi
,
Timothy C. Beers
,
Rodolfo Smiljanic
,
Jo~ao A. S. Amarante
,
Guilherme Limberg
,
Ariel Werle
,
Helio J. Rocha-Pinto
,
Leandro Beraldo e Silva
,
Simone Daflon
,
Alvaro Alvarez-Candal
,
Gustavo B Oliveira Schwarz
,
William Schoenell
,
Tiago Ribeiro
,
Antonio Kanaan
https://arxiv.org/abs/2407.05004
The R-Process Alliance: 2MASS J22132050-5137385, the Star with the Highest-known r-process Enhancement at [Eu/Fe] = +2.45
Volume 19, Issue 23 - article #4
Ian U. Roederer
,
Timothy C. Beers
,
Kohei Hattori
,
Vinicius M. Placco
,
Terese T. Hansen
,
Rana Ezzeddine
,
Anna Frebel
,
Erika M. Holmbeck
,
Charli M. Sakari
https://arxiv.org/abs/2406.02691
The $R$-Process Alliance: Detailed Composition of an $R$-Process Enhanced Star with UV and Optical Spectroscopy. (arXiv:2401.12311v1 [astro-ph.SR])
Volume 19, Issue 4 - article #9
Shivani P. Shah
,
Rana Ezzeddine
,
Ian U. Roederer
,
Terese T. Hansen
,
Vinicius M. Placco
,
Timothy C. Beers
,
Anna Frebel
,
Alexander P. Ji
,
Erika Holmbeck
,
Jennifer Marshall
,
Charli M. Sakari
http://arxiv.org/abs/2401.12311
SPLUS J142445.34–254247.1: An r-process–enhanced, Actinide-boost, Extremely Metal-poor Star Observed with GHOST
Volume 18, Issue 47 - article #11
Vinicius M. Placco
,
Felipe Almeida-Fernandes
,
Erika M. Holmbeck
,
Ian U. Roederer
,
Mohammad K. Mardini
,
Christian R. Hayes
,
Kim Venn
,
Kristin Chiboucas
,
Emily Deibert
,
Roberto Gamen
The Astrophysical Journal
https://doi.org/10.3847/1538-4357/ad077e
Probing the early Milky Way with GHOST spectra of an extremely metal-poor star in the Galactic disk. (arXiv:2310.03075v2 [astro-ph.GA] UPDATED)
Volume 18, Issue 46 - article #4
Anya Dovgal
,
Kim A. Venn
,
Federico Sestito
,
Christian R. Hayes
,
Alan W. McConnachie
,
Julio F. Navarro
,
Vinicius M. Placco
,
Else Starkenburg
,
Nicolas F. Martin
,
John S. Pazder
,
Kristin Chiboucas
,
Emily Deibert
,
Roberto Gamen
,
Jeong-Eun Heo
,
Venu M. Kalari
,
Eder Martioli
,
Siyi Xu
,
Ruben Diaz
,
Manuel Gomez-Jiminez
,
David Henderson
,
Pablo Prado
,
Carlos Quiroz
,
J. Gordon Robertson
,
Roque Ruiz-Carmona
,
Chris Simpson
,
Cristian Urrutia
,
Fletcher Waller
,
Trsytyn Berg
,
Gregory Burley
,
Zachary Hartman
,
Michael Ireland
,
Steve Margheim
,
Gabriel Perez
,
Joanna Thomas-Osip
http://arxiv.org/abs/2310.03075
rrlfe: Software for Generating and Applying Metallicity Calibrations for RR Lyrae Variable Stars Across a Wide Range of Phases and Temperatures. (arXiv:2311.13807v1 [astro-ph.SR])
Volume 18, Issue 46 - article #5
Eckhart Spalding
,
Ronald Wilhelm
,
Nathan De Lee
,
Stacy Long
,
Timothy C. Beers
,
Vinicius M. Placco
,
John Kielkopf
,
Young Sun Lee
,
Joshua Pepper
,
Kenneth Carrell
http://arxiv.org/abs/2311.13807
Abundance Analysis of Stars at Large Radius in the Sextans Dwarf Spheroidal Galaxy
Volume 18, Issue 34 - article #6
Ian U. Roederer
,
Andrew B. Pace
,
Vinicius M. Placco
,
Nelson Caldwell
,
Sergey E. Koposov
,
Mario Mateo
,
Edward W. Olszewski
,
Matthew G. Walker
The Astrophysical Journal
https://doi.org/10.3847/1538-4357/ace3c1
Abundance Analysis of Stars at Large Radius in the Sextans Dwarf Spheroidal Galaxy. (arXiv:2307.02585v1 [astro-ph.GA])
Volume 18, Issue 27 - article #1
Ian U. Roederer
,
Andrew B. Pace
,
Vinicius M. Placco
,
Nelson Caldwell
,
Sergey E. Koposov
,
Mario Mateo
,
Edward W. Olszewski
,
Matthew G. Walker
http://arxiv.org/abs/2307.02585
Search for Extremely Metal-poor Stars with Gemini-N/Graces. I. Chemical-abundance Analysis
Volume 18, Issue 18 - article #9
Miji Jeong
,
Young Sun Lee
,
Timothy C. Beers
,
Vinicius M. Placco
,
Young Kwang Kim
,
Jae-Rim Koo
,
Ho-Gyu Lee
,
Soung-Chul Yang
The Astrophysical Journal
https://doi.org/10.3847/1538-4357/acc58a
US National Gemini Office in the NOIRLab era. (arXiv:2304.10657v1 [astro-ph.IM])
Volume 18, Issue 17 - article #9
Vinicius M. Placco
,
Letizia Stanghellini
http://arxiv.org/abs/2304.10657
Chemodynamically Tagged Groups of CEMP Stars in the Halo of the Milky Way. I. Untangling the Origins of CEMP-s and CEMP-no Stars
Volume 18, Issue 16 - article #3
Joseph Zepeda
,
Timothy C. Beers
,
Vinicius M. Placco
,
Derek Shank
,
Dmitrii Gudin
,
Yutaka Hirai
,
Mohammad Mardini
,
Colin Pifer
,
Thomas Catapano
,
Sean Calagna
The Astrophysical Journal
https://doi.org/10.3847/1538-4357/acbbcc
The R-Process Alliance: Chemodynamically Tagged Groups. II. An Extended Sample of Halo r-process-enhanced Stars
Volume 18, Issue 4 - article #10
Derek Shank
,
Timothy C. Beers
,
Vinicius M. Placco
,
Dmitrii Gudin
,
Thomas Catapano
,
Erika M. Holmbeck
,
Rana Ezzeddine
,
Ian U. Roederer
,
Charli M. Sakari
,
Anna Frebel
The Astrophysical Journal
https://doi.org/10.3847/1538-4357/aca322
Search for Extremely Metal-Poor Stars with GEMINI-N/GRACES I. Chemical-Abundance Analysis. (arXiv:2301.06236v1 [astro-ph.GA])
Volume 18, Issue 3 - article #6
Miji Jeong
,
Young Sun Lee
,
Timothy C. Beers
,
Vinicius M. Placco
,
Young Kwang Kim
,
Jae-Rim Koo
,
Ho-Gyu Lee
,
Soung-Chul Yang
http://arxiv.org/abs/2301.06236
Gaia-IGRINS synergy: Orbits of Newly Identified Milky Way Star Clusters. (arXiv:2212.02337v1 [astro-ph.GA])
Volume 17, Issue 48 - article #3
Elisa R. Garro
,
José
,
G. Fernández-Trincado
,
Dante Minniti
,
Wisthon H. Moya
,
Tali Palma
,
Timothy C. Beers
,
Vinicius M. Placco
,
Beatriz Barbuy
,
Chris Sneden
,
Alan Alves-Brito
,
Bruno Dias
,
Melike Afşar
,
Heinz Frelijj
,
Richard R. Lane
http://arxiv.org/abs/2212.02337
The R-Process Alliance: Abundance Universality among Some Elements at and between the First and Second R-Process Peaks. (arXiv:2210.15105v1 [astro-ph.SR])
Volume 17, Issue 42 - article #2
Ian U. Roederer
,
John J. Cowan
,
Marco Pignatari
,
Timothy C. Beers
,
Elizabeth A. Den Hartog
,
Rana Ezzeddine
,
Anna Frebel
,
Terese T. Hansen
,
Erika M. Holmbeck
,
Matthew R. Mumpower
,
Vinicius M. Placco
,
Charli M. Sakari
,
Rebecca Surman
,
Nicole Vassh
http://arxiv.org/abs/2210.15105
Chemo-Dynamically Tagged Groups of CEMP Stars in the Halo of the Milky Way. I. Untangling the Origins of CEMP-$s$ and CEMP-no Stars. (arXiv:2209.12224v1 [astro-ph.SR])
Volume 17, Issue 38 - article #2
Joseph Zepeda
,
Timothy C. Beers
,
Vinicius M. Placco
,
Derek Shank
,
Dmitrii Gudin
,
Yutaka Hirai
,
Mohammad Mardini
,
Colin Pifer
,
Thomas Catapano
,
Sean Calagna
http://arxiv.org/abs/2209.12224
Discovery of an Ultra Lithium-rich Metal-Poor Red Giant star. (arXiv:2209.02184v1 [astro-ph.SR])
Volume 17, Issue 35 - article #2
Jeremy Kowkabany
,
Rana Ezzeddine
,
Corinne Charbonnel
,
Ian U. Roederer
,
Yangyang Li
,
Zoe Hackshaw
,
Timothy C. Beers
,
Anna Frebel
,
Terese T. Hansen
,
Erika Holmbeck
,
Vinicius M. Placco
,
Charli M. Sakari
http://arxiv.org/abs/2209.02184
The emph{R}-Process Alliance: Chemo-Dynamically Tagged Groups II. An Extended Sample of Halo $r$-Process-Enhanced Stars. (arXiv:2208.09712v1 [astro-ph.GA])
Volume 17, Issue 33 - article #5
Derek Shank
,
Timothy C. Beers
,
Vinicius M. Placco
,
Dmitrii Gudin
,
Thomas Catapano
,
Erika M. Holmbeck
,
Rana Ezzeddine
,
Ian U. Roederer
,
Charli M. Sakari
,
Anna Frebel
,
Terese T. Hansen
http://arxiv.org/abs/2208.09712
Mining S-PLUS for Metal-poor Stars in the Milky Way
Volume 17, Issue 33 - article #9
Vinicius M. Placco
,
Felipe Almeida-Fernandes
,
Anke Arentsen
,
Young Sun Lee
,
William Schoenell
,
Tiago Ribeiro
,
Antonio Kanaan
The Astrophysical Journal Supplement
https://doi.org/10.3847/1538-4365/ac7ab0
The chemical abundance pattern of the extremely metal-poor thin disk star 2MASS J1808-5104 and its origins. (arXiv:2208.03891v1 [astro-ph.GA])
Volume 17, Issue 31 - article #8
Mohammad K. Mardini
,
Anna Frebel
,
Rana Ezzeddine
,
Anirudh Chiti
,
Yohai Meiron
,
Alexander P. Ji
,
Vinicius M. Placco
,
Ian U. Roederer
,
Jorge Meléndez
http://arxiv.org/abs/2208.03891
Dynamically Tagged Groups of Metal-poor Stars. II. The Radial Velocity Experiment Data Release 6
Volume 17, Issue 29 - article #8
Derek Shank
,
Dante Komater
,
Timothy C. Beers
,
Vinicius M. Placco
,
Yang Huang
The Astrophysical Journal Supplement
https://doi.org/10.3847/1538-4365/ac680c
Mining S-PLUS for Metal-Poor Stars in the Milky Way. (arXiv:2206.09003v1 [astro-ph.SR])
Volume 17, Issue 25 - article #2
Vinicius M. Placco
,
Felipe Almeida-Fernandes
,
Anke Arentsen
,
Young Sun Lee
,
William Schoenell
,
Tiago Ribeiro
,
Antonio Kanaan
http://arxiv.org/abs/2206.09003
The R-process Alliance: A Nearly Complete R-process Abundance Template Derived from Ultraviolet Spectroscopy of the R-process-enhanced Metal-poor Star HD 222925
Volume 17, Issue 24 - article #20
Ian U. Roederer
,
James E. Lawler
,
Elizabeth A. Den Hartog
,
Vinicius M. Placco
,
Rebecca Surman
,
Timothy C. Beers
,
Rana Ezzeddine
,
Anna Frebel
,
Terese T. Hansen
,
Kohei Hattori
The Astrophysical Journal Supplement
https://doi.org/10.3847/1538-4365/ac5cbc
On the inconsistency of [C/Fe] abundances and the fractions of carbon-enhanced metal-poor stars among various stellar surveys. (arXiv:2206.04081v1 [astro-ph.GA])
Volume 17, Issue 23 - article #2
Anke Arentsen
,
Vinicius M. Placco
,
Young Sun Lee
,
David S. Aguado
,
Nicolas F. Martin
,
Else Starkenburg
,
Jinmi Yoon
http://arxiv.org/abs/2206.04081
Dynamically Tagged Groups of Metal-poor Stars from the Best and Brightest Survey
Volume 17, Issue 6 - article #5
Derek Shank
,
Timothy C. Beers
,
Vinicius M. Placco
,
Guilherme Limberg
,
Emma Jaques
,
Zhen Yuan
,
Kevin C. Schlaufman
,
Andrew R. Casey
,
Yang Huang
,
Young Sun Lee
,
Kohei Hattori,
,
Rafael M. Santucci
The Astrophysical Journal
http://iopscience.iop.org/0004-637X/926/1/26
Dynamically Tagged Groups of Metal-Poor Stars II. The Radial Velocity Experiment Data Release 6. (arXiv:2201.08337v1 [astro-ph.GA])
Volume 17, Issue 3 - article #4
Derek Shank
,
Dante Komater
,
Timothy C. Beers
,
Vinicius M. Placco
,
Yang Huang
http://arxiv.org/abs/2201.08337
Silicon and Strontium abundances of very metal-poor stars determined from near-infrared spectra. (arXiv:2112.07433v1 [astro-ph.SR])
Volume 16, Issue 51 - article #7
Wako Aoki
,
Timothy C. Beers
,
Satoshi Honda
,
Hiroyuki T. Ishikawa
,
Tadafumi Matsuno
,
Vinicius M. Placco
,
Jinmi Yoon
,
Hiroki Harakawa
,
Teruyuki Hirano
,
Klaus Hodapp
,
Masato Ishizuka
,
Shane Jacobson
,
Takayuki Kotani
,
Tomoyuki Kudo
,
Takashi Kurokawa
,
Masayuki Kuzuhara
,
Jun Nishikawa
,
Masashi Omiya
,
Takuma Serizawa
,
Motohide Tamura
,
Akitoshi Ueda
,
Sebastien Vievard
http://arxiv.org/abs/2112.07433
J-PLUS: Searching for very metal-poor star candidates using the SPEEM pipeline. (arXiv:2109.11600v1 [astro-ph.SR])
Volume 16, Issue 40 - article #2
Carlos Andrés Galarza
(1),
Simone Daflon
(1),
Vinicius M. Placco
(2),
Carlos Allende-Prieto
(3, 4),
Marcelo Borges Fernandes
(1),
Haibo Yuan
(5),
Carlos López-Sanjuan
(6),
Young Sun Lee
(7),
Enrique Solano
(8),
F. Jiménez-Esteban
(8),
David Sobral
(9),
Alvaro Alvarez Candal
(1, 17),
Claudio B. Pereira
(1),
Stavros Akras
(10),
Eduardo Martín
(3, 8),
Yolanda Jiménez Teja
(16),
Javier Cenarro
(6),
David Cristóbal-Hornillos
(6),
Carlos Hernández-Monteagudo
(6),
Antonio Marín-Franch
(6),
Mariano Moles
(6),
Jesús Varela
(6),
Héctor Vázquez Ramió
,
(6),
Jailson Alcaniz
(1),
Renato Dupke
(1, 13, 14, 15),
Alessandro Ederoclite
(11),
Laerte Sodré
,
Jr.
(11),
Raul E. Angulo
(12)
((1) Observatório Nacional - MCTI ON, Rio de Janeiro, Brazil,
(2) NSF's NOIRLab, Tucson, AZ 85719, USA,
(3) Instituto de Astrofísica de Canarias, Tenerife, Spain,
(4) Universidad de La Laguna, Departamento de Astrofísica, Tenerife, Spain,
(5) Department of Astronomy, Beijing Normal University, Beijing, People's Republic of China,
(6) Centro de Estudios de Física del Cosmos de Aragón CEFCA, Unidad Asociada al CSIC, Teruel, Spain,
(7) Department of Astronomy, Space Science, Chungnam National University, South Korea,
(8) Departamento de Astrofísica, Centro de Astrobiología CSIC-INTA, ESAC Campus, Villanueva de la Cañada, Madrid, Spain,
(9) Department of Physics, Lancaster University, Lancaster, UK,
(10) Institute for Astronomy, Astrophysics, Space Applications, Remote Sensing, National Observatory of Athens, GR Penteli, Greece,
(11) Universidade de São Paulo, Instituto de Astronomia, Geofísica e Ciências Atmosféricas, São Paulo, Brazil,
(12) Ikerbasque, Basque Foundation for Science, Bilbao, Spain,
(13) Department of Astronomy, University of Michigan, Ann Arbor, MI USA,
(14) Eureka Scientific Inc., Oakland, CA, USA,
(15) Department of Physics, Astronomy, University of Alabama, Tuscaloosa, AL, USA,
(16) Instituto de Astrofísica de Andalucía-CSIC, Glorieta de la Astronomía, Granada, Spain,
(17) Universidad de Alicante, San Vicente del Raspeig, Alicante, Spain)
http://arxiv.org/abs/2109.11600
Metal-Poor Stars Observed with the Southern African Large Telescope II. An Extended Sample. (arXiv:2109.13761v1 [astro-ph.SR])
Volume 16, Issue 40 - article #3
Joseph Zepeda
,
Kaitlin C. Rasmussen
,
Timothy C. Beers
,
Vinicius M. Placco
,
Yang Huang
,
Éric Depagne
http://arxiv.org/abs/2109.13761
Dynamically Tagged Groups of Metal-Poor Stars from the Best & Brightest Survey. (arXiv:2109.08600v1 [astro-ph.GA])
Volume 16, Issue 39 - article #2
Derek Shank
,
Timothy C. Beers
,
Vinicius M. Placco
,
Guilherme Limberg
,
Emma Jaques
,
Zhen Yuan
,
Kevin C. Schlaufman
,
Andrew R. Casey
,
Yang Huang
,
Young Sun Lee
,
Kohei Hattori
,
Rafael M. Santucci
http://arxiv.org/abs/2109.08600
Two Populations of Carbon-enhanced Metal-poor Stars in the Disk System of the Milky Way
Volume 16, Issue 26 - article #12
Sarah E. Dietz
,
Jinmi Yoon
,
Timothy C. Beers
,
Vinicius M. Placco,
,
Young Sun Lee
The Astrophysical Journal
http://iopscience.iop.org/0004-637X/914/2/100
Targeting Bright Metal-poor Stars in the Disk and Halo Systems of the Galaxy
Volume 16, Issue 21 - article #11
Guilherme Limberg
,
Rafael M. Santucci
,
Silvia Rossi
,
Derek Shank
,
Vinicius M. Placco
,
Timothy C. Beers
,
Kevin C. Schlaufman
,
Andrew R. Casey
,
Hélio D. Perottoni,
,
Young Sun Lee
The Astrophysical Journal
http://iopscience.iop.org/0004-637X/913/1/11
SPLUSJ210428.01-004934.2: An Ultra Metal-Poor Star Identified from Narrowband Photometry. (arXiv:2105.04573v1 [astro-ph.SR])
Volume 16, Issue 20 - article #4
Vinicius M. Placco
,
Ian U. Roederer
,
Young Sun Lee
,
Felipe Almeida-Fernandes
,
Fabio R. Herpich
,
Helio D. Perottoni
,
William Schoenell
,
Tiago Ribeiro
,
Antonio Kanaan
http://arxiv.org/abs/2105.04573
The Pristine Inner Galaxy Survey (PIGS) III: carbon-enhanced metal-poor stars in the bulge. (arXiv:2105.03441v1 [astro-ph.GA])
Volume 16, Issue 20 - article #6
Anke Arentsen
,
Else Starkenburg
,
David S. Aguado
,
Nicolas F. Martin
,
Vinicius M. Placco
,
Raymond Carlberg
,
Jonay I. González Hernández
,
Vanessa Hill
,
Pascale Jablonka
,
Georges Kordopatis
,
Carmela Lardo
,
Lyudmila I. Mashonkina
,
Julio F. Navarro
,
Kim A. Venn
,
Sven Buder
,
Geraint F. Lewis
,
Zhen Wan
,
Daniel B. Zucker
http://arxiv.org/abs/2105.03441
The Photometric Metallicity and Carbon Distributions of the Milky Way’s Halo and Solar Neighborhood from S-PLUS Observations of SDSS Stripe 82
Volume 16, Issue 20 - article #10
Devin D. Whitten
,
Vinicius M. Placco
,
Timothy C. Beers
,
Deokkeun An
,
Young Sun Lee
,
Felipe Almeida-Fernandes
,
Fábio R. Herpich
,
Simone Daflon
,
Carlos E. Barbosa
,
Hélio D. Perottoni
,
Silvia Rossi
,
Patricia B. Tissera
,
Jinmi Yoon
,
Kris Youakim
,
William Schoenell
,
Tiago Ribeiro,
,
Antonio Kanaan
The Astrophysical Journal
http://iopscience.iop.org/0004-637X/912/2/147
SPLUS J210428.01−004934.2: An Ultra Metal-poor Star Identified from Narrowband Photometry
Volume 16, Issue 20 - article #11
Vinicius M. Placco
,
Ian U. Roederer
,
Young Sun Lee
,
Felipe Almeida-Fernandes
,
Fábio R. Herpich
,
Hélio D. Perottoni
,
William Schoenell
,
Tiago Ribeiro,
,
Antonio Kanaan
The Astrophysical Journal Letters
http://iopscience.iop.org/2041-8205/912/2/L32
linemake: An Atomic and Molecular Line List Generator. (arXiv:2104.08286v1 [astro-ph.IM])
Volume 16, Issue 17 - article #1
Vinicius M. Placco
,
Christopher Sneden
,
Ian U. Roederer
,
James E. Lawler
,
Elizabeth A. Den Hartog
,
Neda Hejazi
,
Zachary Maas
,
Peter Bernath
http://arxiv.org/abs/2104.08286
The Photometric Metallicity and Carbon Distributions of the Milky Way's Halo and Solar Neighborhood from S-PLUS Observations of SDSS Stripe 82. (arXiv:2104.00016v1 [astro-ph.GA])
Volume 16, Issue 14 - article #7
Devin D. Whitten
,
Vinicius M. Placco
,
Timothy C. Beers
,
Deokkeun An
,
Young Sun Lee
,
Felipe Almeida-Fernandes
,
Fabio R. Herpich
,
Simone Daflon
,
Carlos E. Barbosa
,
Helio D. Perottoni
,
Silvia Rossi
,
Patricia B. Tissera
,
Jinmi Yoon
,
Kris Youakim
,
William Schoenell
,
Tiago Ribeiro
,
Antonio Kanaan
http://arxiv.org/abs/2104.00016
Targeting Bright Metal-poor Stars in the Disk and Halo Systems of the Galaxy. (arXiv:2103.07621v1 [astro-ph.GA])
Volume 16, Issue 12 - article #7
Guilherme Limberg
,
Rafael M. Santucci
,
Silvia Rossi
,
Derek Shank
,
Vinicius M. Placco
,
Timothy C. Beers
,
Kevin C. Schlaufman
,
Andrew R. Casey
,
Hélio D. Perottoni
,
Young Sun Lee
http://arxiv.org/abs/2103.07621
APOGEE discovery of a chemically atypical star disrupted from NGC 6723 and captured by the Milky Way bulge. (arXiv:2102.01706v1 [astro-ph.GA])
Volume 16, Issue 6 - article #1
José
,
G. Fernández-Trincado
,
Timothy C. Beers
,
Dante Minniti
,
Leticia Carigi
,
Vinicius M. Placco
,
Sang-Hyun Chun
,
Richard R. Lane
,
Doug Geisler
,
Sandro Villanova
,
Stefano O. Souza
,
Beatriz Barbuy
,
Angeles Pérez-Villegas
,
Cristina Chiappini
,
Anna. B. A. Queiroz
,
Baitian Tang
,
Javier Alonso-García
,
Andrés E. Piatti
,
Tali Palma
,
Alan Alves-Brito
,
Christian Moni Bidin
,
Alexandre Roman-Lopes
,
Ricardo R. Muñoz
,
Harinder P. Singh
,
Richa Kundu
,
Leonardo Chaves-Velasquez
,
María Romero-Colmenares
,
Penelope Longa-Peña
,
Mario Soto
,
Katherine Vieira
http://arxiv.org/abs/2102.01706
Dynamically Tagged Groups of Very Metal-poor Halo Stars from the HK and Hamburg/ESO Surveys
Volume 16, Issue 4 - article #6
Guilherme Limberg
,
Silvia Rossi
,
Timothy C. Beers
,
Hélio D. Perottoni
,
Angeles Pérez-Villegas
,
Rafael M. Santucci
,
Yuri Abuchaim
,
Vinicius M. Placco
,
Young Sun Lee
,
Norbert Christlieb
,
John E. Norris
,
Michael S. Bessell
,
Sean G. Ryan
,
Ronald Wilhelm
,
Jaehyon Rhee,
,
Anna Frebel
The Astrophysical Journal
http://iopscience.iop.org/0004-637X/907/1/10
Dynamically Tagged Groups of Very Metal-poor Halo Stars from the HK and Hamburg/ESO Surveys. (arXiv:2011.08305v2 [astro-ph.GA] UPDATED)
Volume 15, Issue 50 - article #3
Guilherme Limberg
,
Silvia Rossi
,
Timothy C. Beers
,
Hélio D. Perottoni
,
Angeles Pérez-Villegas
,
Rafael M. Santucci
,
Yuri Abuchaim
,
Vinicius M. Placco
,
Young Sun Lee
,
Norbert Christlieb
,
John E. Norris
,
Michael S. Bessell
,
Sean G. Ryan
,
Ronald Wilhelm
,
Jaehyon Rhee
,
Anna Frebel
http://arxiv.org/abs/2011.08305
Metal-poor Stars Observed with the Southern African Large Telescope
Volume 15, Issue 50 - article #11
Kaitlin C. Rasmussen
,
Joseph Zepeda
,
Timothy C. Beers
,
Vinicius M. Placco
,
Ãric Depagne
,
Anna Frebel
,
Sarah Dietz,
,
Tilman Hartwig
The Astrophysical Journal
http://iopscience.iop.org/0004-637X/905/1/20
Cosmological Insights into the Early Accretion of r -process-enhanced Stars. I. A Comprehensive Chemodynamical Analysis of LAMOST J1109+0754
Volume 15, Issue 45 - article #14
Mohammad K. Mardini
,
Vinicius M. Placco
,
Yohai Meiron
,
Marina Ishchenko
,
Branislav Avramov
,
Matteo Mazzarini
,
Peter Berczik
,
Manuel Arca Sedda
,
Timothy C. Beers
,
Anna Frebel
,
Ali Taani
,
Martina Donnari
,
Mashhoor A. Al-Wardat,
,
Gang Zhao
The Astrophysical Journal
http://iopscience.iop.org/0004-637X/903/2/88
Discovery of a Large Population of Nitrogen-enhanced Stars in the Magellanic Clouds
Volume 15, Issue 44 - article #15
José G. Fernández-Trincado
,
Timothy C. Beers
,
Dante Minniti
,
Leticia Carigi
,
Beatriz Barbuy
,
Vinicius M. Placco
,
Christian Moni Bidin
,
Sandro Villanova
,
Alexandre Roman-Lopes,
,
Christian Nitschelm
The Astrophysical Journal Letters
http://iopscience.iop.org/2041-8205/903/1/L17
Detection of Pb II in the Ultraviolet Spectra of Three Metal-poor Stars
Volume 15, Issue 42 - article #8
Ian U. Roederer
,
James E. Lawler
,
Erika M. Holmbeck
,
Timothy C. Beers
,
Rana Ezzeddine
,
Anna Frebel
,
Terese T. Hansen
,
Inese I. Ivans
,
Amanda I. Karakas
,
Vinicius M. Placco,
,
Charli M. Sakari
The Astrophysical Journal Letters
http://iopscience.iop.org/2041-8205/902/1/L24
Cosmological Insights into the Early Accretion of textit{r}-Process-Enhanced stars. I. A Comprehensive Chemo-dynamical Analysis of LAMOST J1109+0754. (arXiv:2009.12142v1 [astro-ph.GA])
Volume 15, Issue 40 - article #2
Mohammad K. Mardini
,
Vinicius M. Placco
,
Yohai Meiron
,
Marina Ishchenko
,
Branislav Avramov
,
Matteo Mazzarini
,
Peter Berczik
,
Manuel Arca Sedda
,
Timothy C. Beers
,
Anna Frebel
,
Ali Taani
,
Mashhoor A. Al-Wardat
,
Gang Zhao
http://arxiv.org/abs/2009.12142
Detection of Pb II in the Ultraviolet Spectra of Three Metal-Poor Stars. (arXiv:2009.14251v1 [astro-ph.SR])
Volume 15, Issue 40 - article #3
Ian U. Roederer
,
James E. Lawler
,
Erika M. Holmbeck
,
Timothy C. Beers
,
Rana Ezzeddine
,
Anna Frebel
,
Terese T. Hansen
,
Inese I. Ivans
,
Amanda I. Karakas
,
Vinicius M. Placco
,
Charli M. Sakari
http://arxiv.org/abs/2009.14251
Discovery of a large population of Nitrogen-Enhanced stars in the Magellanic Clouds. (arXiv:2010.00024v1 [astro-ph.GA])
Volume 15, Issue 40 - article #5
José
,
G. Fernández-Trincado
,
Timothy C. Beers
,
Dante Minniti
,
Leticia Carigi
,
Beatriz Barbuy
,
Vinicius M. Placco
,
Christian Moni Bidin
,
Sandro Villanova
,
Alexandre Roman-Lopes
,
Christian Nitschelm
http://arxiv.org/abs/2010.00024
The enigmatic globular cluster UKS~1 obscured by the bulge: textit{H}-band discovery of nitrogen-enhanced stars. (arXiv:2010.00020v1 [astro-ph.GA])
Volume 15, Issue 40 - article #13
José
,
G. Fernández-Trincado
,
Dante Minniti
,
Timothy C. Beers
,
Sandro Villanova
,
Doug Geisler
,
Stefano O. Souza
,
Leigh C. Smith
,
Vinicius M. Placco
,
Katherine Vieira
,
Angeles Pérez-Villegas
,
Beatriz Barbuy
,
Alan Alves-Brito
,
Christian Moni Bidin
,
Javier Alonso-García
,
Baitian Tang
,
Tali Palma
http://arxiv.org/abs/2010.00020
The R -Process Alliance: First Magellan/MIKE Release from the Southern Search for R -process-enhanced Stars
Volume 15, Issue 32 - article #12
Rana Ezzeddine
,
Kaitlin Rasmussen
,
Anna Frebel
,
Anirudh Chiti
,
Karina Hinojisa
,
Vinicius M. Placco
,
Alexander P. Ji
,
Timothy C. Beers
,
Terese T. Hansen
,
Ian U. Roederer
,
Charli M. Sakari,
,
Jorge Melendez
The Astrophysical Journal
http://iopscience.iop.org/0004-637X/898/2/150
The R -Process Alliance: Fourth Data Release from the Search for R -process-enhanced Stars in the Galactic Halo
Volume 15, Issue 32 - article #15
Erika M. Holmbeck
,
Terese T. Hansen
,
Timothy C. Beers
,
Vinicius M. Placco
,
Devin D. Whitten
,
Kaitlin C. Rasmussen
,
Ian U. Roederer
,
Rana Ezzeddine
,
Charli M. Sakari
,
Anna Frebel
,
Maria R. Drout
,
Joshua D. Simon
,
Ian B. Thompson
,
Joss Bland-Hawthorn
,
Brad K. Gibson
,
Eva K. Grebel
,
Georges Kordopatis
,
Andrea Kunder
,
Jorge Meléndez
,
Julio F. Navarro
,
Warren A. Reid
,
George Seabroke
,
Matthias Steinmetz
,
Fred Watson,
,
Rosemary F. Ä . Wyse
The Astrophysical Journal Supplement Series
http://iopscience.iop.org/0067-0049/249/2/30
The R -Process Alliance: A Very Metal-poor, Extremely r -process-enhanced Star with [Eu/Fe] = + 2.2, and the Class of r- III Stars
Volume 15, Issue 30 - article #11
Madelyn Cain
,
Anna Frebel
,
Alexander P. Ji
,
Vinicius M. Placco
,
Rana Ezzeddine
,
Ian U. Roederer
,
Kohei Hattori
,
Timothy C. Beers
,
Jorge Meléndez
,
Terese T. Hansen,
,
Charli M. Sakari
The Astrophysical Journal
http://iopscience.iop.org/0004-637X/898/1/40
The R -process Alliance: The Peculiar Chemical Abundance Pattern of RAVE J183013.5−455510
Volume 15, Issue 28 - article #17
Vinicius M. Placco
,
Rafael M. Santucci
,
Zhen Yuan
,
Mohammad K. Mardini
,
Erika M. Holmbeck
,
Xilu Wang
,
Rebecca Surman
,
Terese T. Hansen
,
Ian U. Roederer
,
Timothy C. Beers
,
Arthur Choplin
,
Alexander P. Ji
,
Rana Ezzeddine
,
Anna Frebel
,
Charli M. Sakari
,
Devin D. Whitten,
,
Joseph Zepeda
The Astrophysical Journal
http://iopscience.iop.org/0004-637X/897/1/78
The $R$-Process Alliance: Fourth Data Release from the Search for $r$-Process-Enhanced Stars in the Galactic Halo. (arXiv:2007.00749v1 [astro-ph.SR])
Volume 15, Issue 27 - article #4
Erika M. Holmbeck
,
Terese T. Hansen
,
Timothy C. Beers
,
Vinicius M. Placco
,
Devin D. Whitten
,
Kaitlin C. Rasmussen
,
Ian U. Roederer
,
Rana Ezzeddine
,
Charli M. Sakari
,
Anna Frebel
,
Maria R. Drout
,
Joshua D. Simon
,
Ian B. Thompson
,
Joss Bland-Hawthorn
,
Brad K. Gibson
,
Eva K. Grebel
,
Georges Kordopatis
,
Andrea Kunder
,
Jorge Melendez
,
Julio F. Navarro
,
Warren A.Reid
,
George Seabroke
,
Matthias Steinmetz
,
Fred Watson
,
Rosemary F.G. Wyse
http://arxiv.org/abs/2007.00749
The R-process Alliance: First Magellan/MIKE Release from the Southern Search for R-Process-enhanced Stars. (arXiv:2006.07731v1 [astro-ph.SR])
Volume 15, Issue 25 - article #14
Rana Ezzeddine
,
Kaitlin Rasmussen
,
Anna Frebel
,
Anirudh Chiti
,
Karina Hinojisa
,
Vinicius M. Placco
,
Ian U. Roederer
,
Alexander P. Ji
,
Timothy C. Beers
,
Terese T. Hansen
,
Charli M. Sakari
,
Jorge Melendez
http://arxiv.org/abs/2006.07731
The R-Process Alliance: J1521-3538, a very metal-poor, extremely r-process-enhanced star with [Eu/Fe]=+2.2, and the class of r-III stars. (arXiv:2006.08080v1 [astro-ph.SR])
Volume 15, Issue 25 - article #15
Madelyn Cain
(MIT, JINA),
Anna Frebel
(MIT, JINA),
Alexander P. Ji
(Carnegie),
Vinicius M. Placco
(Notre Dame, JINA),
Rana Ezzeddine
(MIT, JINA),
Ian U. Roederer
(U Michigan),
Kohei Hattori
(U Michigan, Carnegie Mellon),
Timothy C. Beers
(Notre Dame, JINA),
Jorge Mélendez
(Sao Paulo),
Terese T. Hansen
(Carnegie),
Charli M. Sakari
(San Francisco State U, JINA)
http://arxiv.org/abs/2006.08080
The R-Process Alliance: The Peculiar Chemical Abundance Pattern of RAVE J183013.5-455510
Volume 15, Issue 24 - article #17
Vinicius M. Placco
,
Rafael M. Santucci
,
Zhen Yuan
,
Mohammad K. Mardini
,
Erika M. Holmbeck
,
Xilu Wang
,
Rebecca Surman
,
Terese T. Hansen
,
Ian U. Roederer
,
Timothy C. Beers
,
Arthur Choplin
,
Alexander P. Ji
,
Rana Ezzeddine
,
Anna Frebel
,
Charli M. Sakari
,
Devin D. Whitten
,
Joseph Zepeda
http://arxiv.org/abs/2006.04538
Identification of a Group III CEMP-no Star in the Dwarf Spheroidal Galaxy Canes Venatici I
Volume 15, Issue 18 - article #17
Jinmi Yoon
,
Devin D. Whitten
,
Timothy C. Beers
,
Young Sun Lee
,
Thomas Masseron,
,
Vinicius M. Placco
The Astrophysical Journal
http://iopscience.iop.org/0004-637X/894/1/7
The Metallicity Gradient and Complex Formation History of the Outermost Halo of the Milky Way
Volume 15, Issue 18 - article #19
Sarah E. Dietz
,
Jinmi Yoon
,
Timothy C. Beers,
,
Vinicius M. Placco
The Astrophysical Journal
http://iopscience.iop.org/0004-637X/894/1/34
Dynamical Relics of the Ancient Galactic Halo
Volume 15, Issue 10 - article #5
Zhen Yuan
,
G. C. Myeong
,
Timothy C. Beers
,
N. W. Evans
,
Young Sun Lee
,
Projjwal Banerjee
,
Dmitrii Gudin
,
Kohei Hattori
,
Haining Li
,
Tadafumi Matsuno
,
Vinicius M. Placco
,
M. C. Smith
,
Devin D. Whitten,
,
Gang Zhao
The Astrophysical Journal
http://iopscience.iop.org/0004-637X/891/1/39
The Metallicity Gradient and Complex Formation History of the Outermost Halo of the Milky Way. (arXiv:1911.11140v1 [astro-ph.GA])
Volume 14, Issue 48 - article #2
Sarah E. Dietz
,
Jinmi Yoon
,
Timothy C. Beers
,
Vinicius M. Placco
http://arxiv.org/abs/1911.11140
Discovery of a New Stellar Subpopulation Residing in the (Inner) Stellar Halo of the Milky Way
Volume 14, Issue 46 - article #17
José G. Fernández-Trincado
,
Timothy C. Beers
,
Vinicius M. Placco
,
Edmundo Moreno
,
Alan Alves-Brito
,
Dante Minniti
,
Baitian Tang
,
Angeles Pérez-Villegas
,
Céline Reylé
,
Annie C. Robin,
,
Sandro Villanova
The Astrophysical Journal Letters
http://iopscience.iop.org/2041-8205/886/1/L8
Identification of a Group III CEMP-no Star in the Dwarf Spheroidal Galaxy Canes Venatici I. (arXiv:1910.10038v1 [astro-ph.SR])
Volume 14, Issue 43 - article #3
Jinmi Yoon
,
Devin D. Whitten
,
Timothy C. Beers
,
Young Sun Lee
,
Vinicius M. Placco
http://arxiv.org/abs/1910.10038
Dynamical Relics of the Ancient Galactic Halo. (arXiv:1910.07538v1 [astro-ph.GA])
Volume 14, Issue 42 - article #1
Zhen Yuan
(1),
G.C. Myeong
(2,3),
Timothy C. Beers
(4),
N. Wyn Evans
(3),
Young Sun Lee
(5),
Projjwal Banerjee
(6),
Dmitrii Gudin
(4),
Kohei Hattori
(7),
Haining Li
(8),
Tadafumi Matsuno
(9),
Vinicius M. Placco
(4),
M. C. Smith
(1),
Devin D. Whitten
(4),
Gang Zhao
(8)
((1) SAO, Shanghai,
(2) CfA, Harvard,
(3) IoA, Cambridge,
(4) Notre Dame,
(5) Chungnam Univ, Daejeon,
(6) Indian Institute of Technology, Palakkad,
(7) CMU, Pittsburgh
(8) NAO, Beijing,
(9) NAOJ, Tokyo)
http://arxiv.org/abs/1910.07538
Constraints on the Galactic Inner Halo Assembly History from the Age Gradient of Blue Horizontal-branch Stars
Volume 14, Issue 42 - article #9
Devin D. Whitten
,
Timothy C. Beers
,
Vinicius M. Placco
,
Rafael M. Santucci
,
Pavel Denissenkov
,
Patricia B. Tissera
,
Andrea MejÃas
,
Nina Hernitschek,
,
Daniela Carollo
The Astrophysical Journal
http://iopscience.iop.org/0004-637X/884/1/67
Metal-poor Stars Observed with the Automated Planet Finder Telescope. II. Chemodynamical Analysis of Six Low-Metallicity Stars in the Halo System of the Milky Way. (arXiv:1906.08439v1 [astro-ph.GA])
Volume 14, Issue 25 - article #4
Mohammad K. Mardini
,
Vinicius M. Placco
,
Ali Taani
,
Haining Li
,
Gang Zhao
http://arxiv.org/abs/1906.08439
Evidence for an Aspherical Population III Supernova Explosion Inferred from the Hyper-metal-poor Star HE 1327–2326
Volume 14, Issue 19 - article #8
Rana Ezzeddine
,
Anna Frebel
,
Ian U. Roederer
,
Nozomu Tominaga
,
Jason Tumlinson
,
Miho Ishigaki
,
Kenâichi Nomoto
,
Vinicius M. Placco,
,
Wako Aoki
The Astrophysical Journal
http://iopscience.iop.org/0004-637X/876/2/97
The discovery of anomalously high levels of [Si/Fe] among metal-poor giants in the bulge, disk, and halo of the Milky Way. (arXiv:1904.05884v1 [astro-ph.GA])
Volume 14, Issue 16 - article #3
José
,
G. Fernández-Trincado
,
Timothy C. Beers
,
Vinicius M. Placco
,
Sarah L. Martell
,
Edmundo Moreno
,
Baitian Tang
,
Alan Alves-Brito
,
Sandro Villanova
,
Mario Ortigoza-Urdaneta
,
Dante Minniti
,
Angeles Pérez-Villegas
,
Céline Reylé
,
Annie C. Robin
http://arxiv.org/abs/1904.05884
Metal-poor Stars Observed with the Automated Planet Finder Telescope. I. Discovery of Five Carbon-enhanced Metal-poor Stars from LAMOST
Volume 14, Issue 16 - article #16
Mohammad K. Mardini
,
Haining Li
,
Vinicius M. Placco
,
Sofya Alexeeva
,
Daniela Carollo
,
Ali Taani
,
Iminhaji Ablimit
,
Liang Wang,
,
Gang Zhao
The Astrophysical Journal
http://iopscience.iop.org/0004-637X/875/2/89
Evidence for an aspherical Population III supernova explosion inferred from the hyper metal-poor star HE1327-2326. (arXiv:1904.03211v1 [astro-ph.SR])
Volume 14, Issue 15 - article #7
Rana Ezzeddine
,
Anna Frebel
,
Ian U. Roederer
,
Nozomu Tominaga
,
Jason Tumlinson
,
Miho Ishigaki
,
Ken'ichi Nomoto
,
Vinicius M. Placco
,
Wako Aoki
http://arxiv.org/abs/1904.03211
The R -Process Alliance: Discovery of a Low- α , r -process-enhanced Metal-poor Star in the Galactic Halo
Volume 14, Issue 14 - article #19
Charli M. Sakari
,
Ian U. Roederer
,
Vinicius M. Placco
,
Timothy C. Beers
,
Rana Ezzeddine
,
Anna Frebel
,
Terese Hansen
,
Christopher Sneden
,
John J. Cowan
,
George Wallerstein
,
Elizabeth M. Farrell
,
Kim A. Venn
,
Gal MatijeviÄ
,
Rosemary F. G. Wyse
,
Joss Bland-Hawthorn
,
Cristina Chiappini
,
Kenneth C. Freeman
,
Brad K. Gibson
,
Eva K. Grebel
,
Amina Helmi
,
Georges Kordopatis
,
Andrea Kunder
,
Julio Navarro
,
Warren Reid
,
George Seabroke
,
Matthias Steinmetz,
,
Fred Watson
The Astrophysical Journal
http://iopscience.iop.org/0004-637X/874/2/148
The R-Process Alliance: Discovery of a low-alpha, r-Process-Enhanced Metal-Poor Star in the Galactic Halo. (arXiv:1903.01480v1 [astro-ph.SR])
Volume 14, Issue 10 - article #12
Charli M. Sakari
,
Ian U. Roederer
,
Vinicius M. Placco
,
Timothy C. Beers
,
Rana Ezzeddine
,
Anna Frebel
,
Terese Hansen
,
Christopher Sneden
,
John J. Cowan
,
George Wallerstein
,
Elizabeth M. Farrell
,
Kim A. Venn
,
Gal Matijevic
,
Rosemary F.G. Wyse
,
Joss Bland-Hawthorn
,
Cristina Chiappini
,
Kenneth C. Freeman
,
Brad K. Gibson
,
Eva K. Grebel
,
Amina Helmi
,
Georges Kordopatis
,
Andrea Kunder
,
Julio Navarro
,
Warren Reid
,
George Seabroke
,
Matthias Steinmetz
,
Fred Watson
http://arxiv.org/abs/1903.01480
Abundances and kinematics of carbon-enhanced metal-poor stars in the Galactic halo*; A new classification scheme based on Sr and Ba. (arXiv:1901.05968v1 [astro-ph.SR])
Volume 14, Issue 4 - article #1
Camilla J. Hansen
,
Terese T. Hansen
,
Andreas Koch
,
Tim C. Beers
,
Birgitta Nordström
,
Vinicius M. Placco
,
Johannes Andersen
http://arxiv.org/abs/1901.05968
The R-Process Alliance: Spectroscopic Follow-up of Low-metallicity Star Candidates from the Best & Brightest Survey
Volume 14, Issue 3 - article #15
Vinicius M. Placco
,
Rafael M. Santucci
,
Timothy C. Beers
,
Julio Chanamé
,
MarÃa Paz Sepúlveda
,
Johanna Coronado
,
Silvia Rossi
,
Young Sun Lee
,
Else Starkenburg
,
Kris Youakim
,
Manuel Barrientos
,
Rana Ezzeddine
,
Anna Frebel
,
Terese T. Hansen
,
Erika M. Holmbeck
,
Alexander P. Ji
,
Kaitlin C. Rasmussen
,
Ian U. Roederer
,
Charli M. Sakari,
,
Devin D. Whitten
The Astrophysical Journal
http://iopscience.iop.org/0004-637X/870/2/122
The Origin of the 300 km s −1 Stream near Segue 1
Volume 13, Issue 41 - article #16
Sal Wanying Fu
,
Joshua D. Simon
,
Matthew Shetrone
,
Jo Bovy
,
Timothy C. Beers
,
J. G. Fernández-Trincado
,
Vinicius M. Placco
,
Olga Zamora
,
Carlos Allende Prieto
,
D. A. GarcÃa-Hernández
,
Paul Harding
,
Inese Ivans
,
Richard Lane
,
Christian Nitschelm
,
Alexandre Roman-Lopes,
,
Jennifer Sobeck
The Astrophysical Journal
http://iopscience.iop.org/0004-637X/866/1/42
The R -Process Alliance: A Comprehensive Abundance Analysis of HD 222925, a Metal-poor Star with an Extreme R -process Enhancement of [Eu/H] = −0.14
Volume 13, Issue 40 - article #13
Ian U. Roederer
,
Charli M. Sakari
,
Vinicius M. Placco
,
Timothy C. Beers
,
Rana Ezzeddine
,
Anna Frebel,
,
Terese T. Hansen
The Astrophysical Journal
http://iopscience.iop.org/0004-637X/865/2/129
The R-Process Alliance: First Release from the Northern Search for r-Process Enhanced Metal-Poor Stars in the Galactic Halo. (arXiv:1809.09156v1 [astro-ph.SR])
Volume 13, Issue 39 - article #7
Charli M. Sakari
,
Vinicius M. Placco
,
Elizabeth M. Farrell
,
Ian U. Roederer
,
George Wallerstein
,
Timothy C. Beers
,
Rana Ezzeddine
,
Anna Frebel
,
Terese Hansen
,
Erika M. Holmbeck
,
Christopher Sneden
,
Kim A. Venn
,
Christopher Evan Davis
,
Gal Matijevic
,
Rosemary F.G. Wyse
,
Joss Bland-Hawthorn
,
Cristina Chiappini
,
Kenneth C. Freeman
,
Brad K. Gibson
,
Eva K. Grebel
,
Amina Helmi
,
Georges Kordopatis
,
Andrea Kunder
,
Julio Navarro
,
Warren Reid
,
George Seabroke
,
Matthias Steinmetz
,
Fred Watson
http://arxiv.org/abs/1809.09156
The R-Process Alliance: A Comprehensive Abundance Analysis of HD 222925, a Metal-Poor Star with an Extreme R-Process Enhancement of [Eu/H] = -0.14. (arXiv:1808.09469v1 [astro-ph.SR])
Volume 13, Issue 35 - article #9
Ian U. Roederer
(U. Michigan, JINA-CEE),
Charli M. Sakari
(U. Washington),
Vinicius M. Placco
(U. Notre Dame, JINA-CEE),
Timothy C. Beers
(U. Notre Dame, JINA-CEE),
Rana Ezzeddine
(MIT, JINA-CEE),
Anna Frebel
(MIT, JINA-CEE),
Terese T. Hansen
(Carnegie Observatories)
http://arxiv.org/abs/1808.09469
The R -Process Alliance: Chemical Abundances for a Trio of r -process-enhanced Stars—One Strong, One Moderate, and One Mild
Volume 13, Issue 35 - article #15
Madelyn Cain
,
Anna Frebel
,
Maude Gull
,
Alexander P. Ji
,
Vinicius M. Placco
,
Timothy C. Beers
,
Jorge Meléndez
,
Rana Ezzeddine
,
Andrew R. Casey
,
Terese T. Hansen
,
Ian U. Roederer,
,
Charli Sakari
The Astrophysical Journal
http://iopscience.iop.org/0004-637X/864/1/43
The R -Process Alliance: Discovery of the First Metal-poor Star with a Combined r - and s -process Element Signature
Volume 13, Issue 32 - article #13
Maude Gull
,
Anna Frebel
,
Madelyn G. Cain
,
Vinicius M. Placco
,
Alexander P. Ji
,
Carlo Abate
,
Rana Ezzeddine
,
Amanda I. Karakas
,
Terese T. Hansen
,
Charli Sakari
,
Erika M. Holmbeck
,
Rafael M. Santucci
,
Andrew R. Casey,
,
Timothy C. Beers
The Astrophysical Journal
http://iopscience.iop.org/0004-637X/862/2/174
Galactic Archeology with the AEGIS Survey: The Evolution of Carbon and Iron in the Galactic Halo
Volume 13, Issue 29 - article #20
Jinmi Yoon
,
Timothy C. Beers
,
Sarah Dietz
,
Young Sun Lee
,
Vinicius M. Placco
,
Gary Da Costa
,
Stefan Keller
,
Christopher I. Owen,
,
Mahavir Sharma
The Astrophysical Journal
http://iopscience.iop.org/0004-637X/861/2/146
The R-Process Alliance: Chemical Abundances for a Trio of R-Process-Enhanced Stars -- One Strong, One Moderate, One Mild. (arXiv:1807.03734v1 [astro-ph.SR])
Volume 13, Issue 28 - article #13
Madelyn Cain
(MIT),
Anna Frebel
(MIT),
Maude Gull
(MIT),
Alexander P. Ji
(Carngie),
Vinicius M. Placco
(Notre Dame),
Timothy C. Beers
(Notre Dame),
Jorge Melendez
(Sao Paulo),
Rana Ezzeddine
(MIT, JINA),
Andrew R. Casey
(Monash),
Terese T. Hansen
(Carnegie),
Ian U. Roederer
(U Michigan),
Charli Sakari
(U Washington)
http://arxiv.org/abs/1807.03734
Galactic Archeology with the AEGIS Survey: The Evolution of Carbon and Iron in the Galactic Halo. (arXiv:1806.04738v1 [astro-ph.SR])
Volume 13, Issue 24 - article #4
Jinmi Yoon
,
Timothy C. Beers
,
Sarah Dietz
,
Young Sun Lee
,
Vinicius M. Placco
,
Gary Da Costa
,
Stefan Keller
,
Christopher I. Owen
,
Mahavir Sharma
http://arxiv.org/abs/1806.04738
The R-Process Alliance: Discovery of the first metal-poor star with a combined r- and s-process element signature. (arXiv:1806.00645v1 [astro-ph.SR])
Volume 13, Issue 23 - article #5
Maude Gull
(MIT),
Anna Frebel
(MIT, JINA),
Madelyn G. Cain
(MIT),
Vinicius M. Placco
(Notre Dame, JINA),
Alexander P. Ji
(carnegie),
Carlo Abate
(Bonn),
Rana Ezzeddine
(JINA, MIT)
Amanda I. Karakas
(Monash),
Terese T. Hansen
(Carnegie),
Charli Sakari
(UW),
Erika M. Holmbeck
(Notre Dame, JINA),
Rafael M. Santucci
(UGoias),
Andrew R. Casey
(Monash),
Timothy C. Beers
(Notre Dame, JINA)
http://arxiv.org/abs/1806.00645
The R -Process Alliance: 2MASS J09544277+5246414, the Most Actinide-enhanced R -II Star Known
Volume 13, Issue 23 - article #7
Erika M. Holmbeck
,
Timothy C. Beers
,
Ian U. Roederer
,
Vinicius M. Placco
,
Terese T. Hansen
,
Charli M. Sakari
,
Christopher Sneden
,
Chao Liu
,
Young Sun Lee
,
John J. Cowan,
,
Anna Frebel
The Astrophysical Journal Letters
http://iopscience.iop.org/2041-8205/859/2/L24
The R-Process Alliance: 2MASS J09544277+5246414, the Most Actinide-Enhanced R-II Star Known. (arXiv:1805.11925v1 [astro-ph.SR])
Volume 13, Issue 22 - article #7
Erika M. Holmbeck
,
Timothy C. Beers
,
Ian U. Roederer
,
Vinicius M. Placco
,
Terese T. Hansen
,
Charli M. Sakari
,
Christopher Sneden
,
Chao Liu
,
Young Sun Lee
,
John J. Cowan
,
Anna Frebel
http://arxiv.org/abs/1805.11925
Spectroscopic Validation of Low-metallicity Stars from RAVE
Volume 13, Issue 22 - article #9
Vinicius M. Placco
,
Timothy C. Beers
,
Rafael M. Santucci
,
Julio Chanamé
,
MarÃa Paz Sepúlveda
,
Johanna Coronado
,
Sean D. Points
,
Catherine C. Kaleida
,
Silvia Rossi
,
Georges Kordopatis
,
Young Sun Lee
,
Gal MatijeviÄ
,
Anna Frebel
,
Terese T. Hansen
,
Erika M. Holmbeck
,
Kaitlin C. Rasmussen
,
Ian U. Roederer
,
Charli M. Sakari,
,
Devin D. Whitten
The Astronomical Journal
http://iopscience.iop.org/1538-3881/155/6/256
The R -process Alliance: First Release from the Southern Search for R -process-enhanced Stars in the Galactic Halo
Volume 13, Issue 19 - article #20
Terese T. Hansen
,
Erika M. Holmbeck
,
Timothy C. Beers
,
Vinicius M. Placco
,
Ian U. Roederer
,
Anna Frebel
,
Charli M. Sakari
,
Joshua D. Simon,
,
Ian B. Thompson
The Astrophysical Journal
http://iopscience.iop.org/0004-637X/858/2/92
Spectroscopic Validation of Low-Metallicity Stars from RAVE. (arXiv:1805.00608v1 [astro-ph.SR])
Volume 13, Issue 18 - article #16
Vinicius M. Placco
,
Timothy C. Beers
,
Rafael M. Santucci
,
Julio Chaname
,
Maria Paz Sepulveda
,
Johanna Coronado
,
Sean D. Points
,
Catherine C. Kaleida
,
Silvia Rossi
,
Georges Kordopatis
,
Young Sun Lee
,
Gal Matijevic
,
Anna Frebel
,
Terese T. Hansen
,
Erika M. Holmbeck
,
Kaitlin C. Rasmussen
,
Ian U. Roederer
,
Charli M. Sakari
,
Devin D. Whitten
http://arxiv.org/abs/1805.00608
The Origin of the 300 km s$^{-1}$ Stream Near Segue 1. (arXiv:1804.08622v1 [astro-ph.GA])
Volume 13, Issue 17 - article #20
Sal Wanying Fu
,
Joshua D. Simon
,
Matthew Shetrone
,
Jo Bovy
,
J. G. Fernández-Trincado
,
Vinicius M. Placco
,
Olga Zamora
,
Carlos Allende Prieto
,
D. A. García-Hernández
,
Paul Harding
,
Inese Ivans
,
Richard Lane
,
Christian Nitschelm
,
Alexandre Roman-Lopes
,
Jennifer Sobeck
http://arxiv.org/abs/1804.08622
The $R$-Process Alliance: First Release from the Southern Search for $r$-Process-Enhanced Stars in the Galactic Halo. (arXiv:1804.03114v1 [astro-ph.SR])
Volume 13, Issue 15 - article #13
Terese T. Hansen
,
Erika M. Holmbeck
,
Timothy C. Beers
,
Vinicius M. Placco
,
Ian U. Roederer
,
Anna Frebel
,
Charli M. Sakari
,
Joshua D. Simon
,
Ian B. Thompson
http://arxiv.org/abs/1804.03114
The r -process Pattern of a Bright, Highly r -process-enhanced Metal-poor Halo Star at [Fe/H] ∼ −2
Volume 13, Issue 7 - article #18
Charli M. Sakari
,
Vinicius M. Placco
,
Terese Hansen
,
Erika M. Holmbeck
,
Timothy C. Beers
,
Anna Frebel
,
Ian U. Roederer
,
Kim A. Venn
,
George Wallerstein
,
Christopher Evan Davis
,
Elizabeth M. Farrell,
,
David Yong
The Astrophysical Journal Letters
http://iopscience.iop.org/2041-8205/854/2/L20
APOGEE Chemical Abundances of the Sagittarius Dwarf Galaxy
Volume 12, Issue 34 - article #18
Sten Hasselquist
,
Matthew Shetrone
,
Verne Smith
,
Jon Holtzman
,
Andrew McWilliam
,
J. G. Fernández-Trincado
,
Timothy C. Beers
,
Steven R. Majewski
,
David L. Nidever
,
Baitian Tang
,
Patricia B. Tissera
,
Emma Fernández Alvar
,
Carlos Allende Prieto
,
Andres Almeida
,
Borja Anguiano
,
Giuseppina Battaglia
,
Leticia Carigi
,
Gloria Delgado Inglada
,
Peter Frinchaboy
,
D. A. GarcÃa-Hernández
,
Doug Geisler
,
Dante Minniti
,
Vinicius M. Placco
,
Mathias Schultheis
,
Jennifer Sobeck,
,
Sandro Villanova
The Astrophysical Journal
http://iopscience.iop.org/0004-637X/845/2/162
RAVE J203843.2–002333: The First Highly R-process-enhanced Star Identified in the RAVE Survey
Volume 12, Issue 29 - article #21
Vinicius M. Placco
,
Erika M. Holmbeck
,
Anna Frebel
,
Timothy C. Beers
,
Rebecca A. Surman
,
Alexander P. Ji
,
Rana Ezzeddine
,
Sean D. Points
,
Catherine C. Kaleida
,
Terese T. Hansen
,
Charli M. Sakari,
,
Andrew R. Casey
The Astrophysical Journal
http://iopscience.iop.org/0004-637X/844/1/18
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