Virtual Journal of Nuclear Astrophysics
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, Michigan State University and
Fry Fang
, University of Notre Dame
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Results 1 - 60 of 60
The $R$-process Alliance: Enrichment of $R$-process Elements in a Simulated Milky Way-like Galaxy
Virtual Journal - Volume 22, Issue 42 - article #6
Yutaka Hirai
,
Timothy C. Beers
,
Young Sun Lee
,
Shinya Wanajo
,
Ian U. Roederer
,
Masaomi Tanaka
,
Masashi Chiba
,
Takayuki R. Saitoh
,
Vinicius M. Placco
,
Terese T. Hansen
,
Rana Ezzeddine
,
Anna Frebel
,
Erika M. Holmbeck
,
Charli M. Sakari
https://arxiv.org/abs/2410.11943
The R-process Alliance: Fifth Data Release from the Search for R-process-enhanced Metal-poor Stars in the Galactic Halo with the GTC
Virtual Journal - Volume 22, Issue 40 - article #21
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
Virtual Journal - Volume 22, Issue 33 - article #5
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
Virtual Journal - Volume 22, Issue 33 - article #27
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
Virtual Journal - Volume 22, Issue 32 - article #7
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 R-Process Alliance: 2MASS J22132050-5137385, the Star with the Highest-known r-process Enhancement at [Eu/Fe] = +2.45
Virtual Journal - Volume 22, Issue 23 - article #15
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
Chemical Analysis of the Brightest Star of the Cetus II Ultrafaint Dwarf Galaxy Candidate
Virtual Journal - Volume 21, Issue 49 - article #59
K. B. Webber
,
T. T. Hansen
,
J. L. Marshall
,
J. D. Simon
,
A. B. Pace
,
B. Mutlu-Pakdil
,
A. Drlica-Wagner
,
C. E. MartÃnez-Vázquez
,
M. Aguena
,
S. S. Allam
The Astrophysical Journal
https://doi.org/10.3847/1538-4357/ad0385
Element abundance patterns in stars indicate fission of nuclei heavier than uranium. (arXiv:2312.06844v1 [astro-ph.SR])
Virtual Journal - Volume 21, Issue 48 - article #9
Ian U. Roederer
,
Nicole Vassh
,
Erika M. Holmbeck
,
Matthew R. Mumpower
,
Rebecca Surman
,
John J. Cowan
,
Timothy C. Beers
,
Rana Ezzeddine
,
Anna Frebel
,
Terese T. Hansen
,
Vinicius M. Placco
,
Charli M. Sakari
http://arxiv.org/abs/2312.06844
Uranium Abundances and Ages of r-process Enhanced Stars with Novel U ii Lines
Virtual Journal - Volume 21, Issue 20 - article #39
Shivani P. Shah
,
Rana Ezzeddine
,
Alexander P. Ji
,
Terese T. Hansen
,
Ian U. Roederer
,
Márcio Catelan
,
Zoe Hackshaw
,
Erika M. Holmbeck
,
Timothy C. Beers
,
Rebecca Surman
The Astrophysical Journal
https://doi.org/10.3847/1538-4357/acb8af
Evidence for multiple nucleosynthetic processes from carbon enhanced metal-poor stars in the Carina dwarf spheroidal galaxy. (arXiv:2305.02316v1 [astro-ph.SR])
Virtual Journal - Volume 21, Issue 18 - article #1
T. T. Hansen
,
J. D. Simon
,
T. S. Li
,
A. Frebel
,
I. Thompson
,
S. Shectman
http://arxiv.org/abs/2305.02316
Timing the r-Process Enrichment of the Ultra-Faint Dwarf Galaxy Reticulum II. (arXiv:2212.00810v1 [astro-ph.GA])
Virtual Journal - Volume 20, Issue 48 - article #6
Joshua D. Simon
,
Thomas M. Brown
,
Burçin Mutlu-Pakdil
,
Alexander P. Ji
,
Alex Drlica-Wagner
,
Roberto J. Avila
,
Clara E. Martínez-Vázquez
,
Ting S. Li
,
Eduardo Balbinot
,
Keith Bechtol
,
Anna Frebel
,
Marla Geha
,
Terese T. Hansen
,
David J. James
,
Andrew B. Pace
,
M. Aguena
,
O. Alves
,
F. Andrade-Oliveira
,
J. Annis
,
D. Bacon
,
E. Bertin
,
D. Brooks
,
D. L. Burke
,
A. Carnero Rosell
,
M. Carrasco Kind
,
J. Carretero
,
M. Costanzi
,
L. N. da Costa
,
J. De Vicente
,
S. Desai
,
P. Doel
,
S. Everett
,
I. Ferrero
,
J. Frieman
,
J. García-Bellido
,
M. Gatti
,
D. W. Gerdes
,
D. Gruen
,
R. A. Gruendl
,
J. Gschwend
,
G. Gutierrez
,
S. R. Hinton
,
D. L. Hollowood
,
K. Honscheid
,
K. Kuehn
,
N. Kuropatkin
,
J. L. Marshall
,
J. Mena-Fernández
,
R. Miquel
,
A. Palmese
,
F. Paz-Chinchón
,
M. E. S. Pereira
,
A. Pieres
,
et al.
(15 additional authors not shown)
http://arxiv.org/abs/2212.00810
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])
Virtual Journal - Volume 20, Issue 42 - article #14
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
Discovery of an Ultra Lithium-rich Metal-Poor Red Giant star. (arXiv:2209.02184v1 [astro-ph.SR])
Virtual Journal - Volume 20, 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 R-Process Alliance: Abundance Universality among Some Elements at and between the First and Second R-Process Peaks
Virtual Journal - Volume 20, Issue 34 - article #16
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
The Astrophysical Journal
https://doi.org/10.3847/1538-4357/ac85bc
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])
Virtual Journal - Volume 20, Issue 33 - article #7
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
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
Virtual Journal - Volume 20, Issue 24 - article #27
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
The Southern Stellar Stream Spectroscopic Survey ( S 5 ): Chemical Abundances of Seven Stellar Streams
Virtual Journal - Volume 18, Issue 39 - article #7
Alexander P. Ji
,
Ting S. Li
,
Terese T. Hansen
,
Andrew R. Casey
,
Sergey E. Koposov
,
Andrew B. Pace
,
Dougal Mackey
,
Geraint F. Lewis
,
Jeffrey D. Simpson
,
Joss Bland-Hawthorn
,
Lara R. Cullinane
,
Gary. S. Da Costa
,
Kohei Hattori
,
Sarah L. Martell
,
Kyler Kuehn
,
Denis Erkal
,
Nora Shipp
,
Zhen Wan,
,
Daniel B. Zucker
The Astronomical Journal
http://iopscience.iop.org/1538-3881/160/4/181
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
Virtual Journal - Volume 18, Issue 30 - article #19
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
Chemical Analysis of the Ultrafaint Dwarf Galaxy Grus II. Signature of High-mass Stellar Nucleosynthesis
Virtual Journal - Volume 18, Issue 29 - article #26
T. T. Hansen
,
J. L. Marshall
,
J. D. Simon
,
T. S. Li
,
R. A. Bernstein
,
A. B. Pace
,
P. Ferguson
,
D. Q. Nagasawa
,
K. Kuehn
,
D. Carollo
,
M. Geha
,
D. James
,
A. Walker
,
H. T. Diehl
,
M. Aguena
,
S. Allam
,
S. Avila
,
E. Bertin
,
D. Brooks
,
E. Buckley-Geer
,
D. L. Burke
,
A. Carnero Rosell
,
M. Carrasco Kind
,
J. Carretero
,
M. Costanzi
,
L. N. Da Costa
,
S. Desai
,
J. De Vicente
,
P. Doel
,
K. Eckert
,
T. F. Eifler
,
S. Everett
,
I. Ferrero
,
J. Frieman
,
J. GarcÃa-Bellido
,
E. Gaztanaga
,
D. W. Gerdes
,
D. Gruen
,
R. A. Gruendl
,
J. Gschwend
,
G. Gutierrez
,
S. R. Hinton
,
D. L. Hollowood
,
K. Honscheid
,
N. Kuropatkin
,
M. A. G. Maia
,
M. March
,
R. Miquel
,
A. Palmese
,
F. Paz-Chinchón
,
A. A. Plazas
,
E. Sanchez
,
B. Santiago
,
V. Scarpine
,
S. Serrano
,
M. Smith
,
M. Soares-Santos
,
E. Suchyta
,
M. E. C. Swanson
,
G. Tarle
,
T. N. Varga
,
R. Wilkinson
(DESÂ Collaboration)
The Astrophysical Journal
http://iopscience.iop.org/0004-637X/897/2/183
The R -process Alliance: The Peculiar Chemical Abundance Pattern of RAVE J183013.5−455510
Virtual Journal - Volume 18, Issue 28 - article #19
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])
Virtual Journal - Volume 18, 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])
Virtual Journal - Volume 18, Issue 25 - article #9
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])
Virtual Journal - Volume 18, Issue 25 - article #10
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
Chemical Analysis of the Ultra-Faint Dwarf Galaxy Grus~II. Signature of high-mass stellar nucleosynthesis. (arXiv:2005.10767v1 [astro-ph.SR])
Virtual Journal - Volume 18, Issue 21 - article #2
T. T. Hansen
,
J. L. Marshall
,
J. D. Simon
,
T. S. Li
,
R. A. Bernstein
,
A. B. Pace
,
P. Ferguson
,
D. Q. Nagasawa
,
K. Kuehn
,
D. Carollo
,
M. Geha
,
D. James
,
A. Walker
,
H. T. Diehl
,
M. Aguena
,
S. Allam
,
S. Avila
,
E. Bertin
,
D. Brooks
,
E. Buckley-Geer
,
D. L. Burke
,
A. Carnero Rosell
,
M. Carrasco Kind
,
J. Carretero
,
M. Costanzi
,
L. N. da Costa
,
S. Desai
,
J. De Vicente
,
P. Doel
,
K. Eckert
,
T. F. Eifler
,
S. Everett
,
I. Ferrero
,
J. Frieman
,
J. García-Bellido
,
E. Gaztanaga
,
D. W. Gerdes
,
D. Gruen
,
R. A. Gruendl
,
J. Gschwend
,
G. Gutierrez
,
S. R. Hinton
,
D. L. Hollowood
,
K. Honscheid
,
N. Kuropatkin
,
M. A. G. Maia
,
M. March
,
R. Miquel
,
A. Palmese
,
F. Paz-Chinchón
,
A. A. Plazas
,
E. Sanchez
,
B. Santiago
,
V. Scarpine
,
S. Serrano
,
M. Smith
,
M. Soares-Santos
,
E. Suchyta
,
M. E. C. Swanson
,
G. Tarle
,
et al.
(2 additional authors not shown)
http://arxiv.org/abs/2005.10767
The lanthanide fraction distribution in metal-poor stars: a test of neutron star mergers as the dominant r-process site. (arXiv:1905.01814v2 [astro-ph.HE] UPDATED)
Virtual Journal - Volume 17, Issue 29 - article #6
Alexander P. Ji
(Carnegie),
Maria R. Drout
(Toronto),
Terese T. Hansen
(Texas A&M)
http://arxiv.org/abs/1905.01814
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])
Virtual Journal - Volume 17, 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
Chemical Abundance Analysis of Tucana III, the Second $r$-process Enhanced Ultra-Faint Dwarf Galaxy. (arXiv:1812.01022v1 [astro-ph.GA])
Virtual Journal - Volume 16, Issue 49 - article #3
J. Marshall
,
T. Hansen
,
J. Simon
,
T. Li
,
R. Bernstein
,
K. Kuehn
,
A. Pace
,
D. DePoy
,
A. Palmese
,
A. Pieres
,
L. Strigari
,
A. Drlica-Wagner
,
C. Lidman
,
D. Nagasawa
,
E. Bertin
,
D. Brooks
,
E. Buckley-Geer
,
D. L. Burke
,
A. Carnero Rosell
,
M. Carrasco Kind
,
J. Carretero
,
C. E. Cunha
,
C. B. D'Andrea
,
L. N. da Costa
,
J. De Vicente
,
S. Desai
,
P. Doel
,
T. F. Eifler
,
B. Flaugher
,
P. Fosalba
,
J. Frieman
,
J. García-Bellido
,
E. Gaztanaga
,
D. W. Gerdes
,
R. A. Gruendl
,
J. Gschwend
,
G. Gutierrez
,
W. G. Hartley
,
D. L. Hollowood
,
K. Honscheid
,
B. Hoyle
,
D. J. James
,
N. Kuropatkin
,
M. A. G. Maia
,
F. Menanteau
,
C. J. Miller
,
R. Miquel
,
A. A. Plazas
,
E. Sanchez
,
B. Santiago
,
V. Scarpine
,
M. Schubnell
,
S. Serrano
,
I. Sevilla-Noarbe
,
M. Smith
,
E. Suchyta
,
M. E. C. Swanson
,
G. Tarle
,
W. Wester
(DES Collaboration)
http://arxiv.org/abs/1812.01022
Chemical Abundance Signature of J0023+0307 -- A Second-Generation Main-Sequence Star with [Fe/H]<-6. (arXiv:1810.01228v1 [astro-ph.SR])
Virtual Journal - Volume 16, Issue 40 - article #3
Anna Frebel
(MIT),
Alexander P. Ji
(Carnegie),
Rana Ezzeddine
(JINA, MIT),
Terese T. Hansen
(Carnegie),
Anirudh Chiti
(MIT),
Ian B. Thompson
(Carnegie),
Thibault Merle
(Brussels)
http://arxiv.org/abs/1810.01228
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
Virtual Journal - Volume 16, Issue 40 - article #27
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
Chemical Abundances in the Ultra-Faint Dwarf Galaxies Grus I and Triangulum II: Neutron-Capture Elements as a Defining Feature of the Faintest Dwarfs. (arXiv:1809.02182v1 [astro-ph.GA])
Virtual Journal - Volume 16, Issue 37 - article #4
Alexander P. Ji
,
Joshua D. Simon
,
Anna Frebel
,
Kim A. Venn
,
Terese T. Hansen
http://arxiv.org/abs/1809.02182
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])
Virtual Journal - Volume 16, Issue 35 - article #12
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
Virtual Journal - Volume 16, Issue 35 - article #21
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
Virtual Journal - Volume 16, Issue 32 - article #37
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
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])
Virtual Journal - Volume 16, Issue 28 - article #24
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
The R -process Alliance: First Release from the Southern Search for R -process-enhanced Stars in the Galactic Halo
Virtual Journal - Volume 16, Issue 19 - article #17
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
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])
Virtual Journal - Volume 16, Issue 15 - article #12
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. (arXiv:1801.07727v1 [astro-ph.SR])
Virtual Journal - Volume 16, Issue 4 - article #20
C.M. Sakari
,
V.M. Placco
,
T. Hansen
,
E.M. Holmbeck
,
T.C. Beers
,
A. Frebel
,
I.U. Roederer
,
K.A. Venn
,
G. Wallerstein
,
C.E. Davis
,
E.M. Farrell
,
D Yong
http://arxiv.org/abs/1801.07727
Detailed chemical abundance analysis of the thick disk star cluster Gaia 1⋆⋆⋆
Virtual Journal - Volume 16, Issue 4 - article #27
Andreas Koch
,
Terese T. Hansen
,
Andrea Kunder
Astronomy & Astrophysics
http://feedproxy.google.com/~r/edp_aa/~3/BQ7Da1hfwpA/201731434
Chemical Abundance Analysis of Three α -poor, Metal-poor Stars in the Ultrafaint Dwarf Galaxy Horologium I
Virtual Journal - Volume 16, Issue 2 - article #22
D. Q. Nagasawa
,
J. L. Marshall
,
T. S. Li
,
T. T. Hansen
,
J. D. Simon
,
R. A. Bernstein
,
E. Balbinot
,
A. Drlica-Wagner
,
A. B. Pace
,
L. E. Strigari
,
C. M. Pellegrino
,
D. L. DePoy
,
N. B. Suntzeff
,
K. Bechtol
,
A. R. Walker
,
T. M. C. Abbott
,
F. B. Abdalla
,
S. Allam
,
J. Annis
,
A. Benoit-Lévy
,
E. Bertin
,
D. Brooks
,
A. Carnero Rosell
,
M. Carrasco Kind
,
J. Carretero
,
C. E. Cunha
,
C. B. DâAndrea
,
L. N. da Costa
,
C. Davis
,
S. Desai
,
P. Doel
,
T. F. Eifler
,
B. Flaugher
,
P. Fosalba
,
J. Frieman
,
J. GarcÃa-Bellido
,
E. Gaztanaga
,
D. W. Gerdes
,
D. Gruen
,
R. A. Gruendl
,
J. Gschwend
,
G. Gutierrez
,
W. G. Hartley
,
K. Honscheid
,
D. J. James
,
T. Jeltema
,
E. Krause
,
K. Kuehn
,
S. Kuhlmann
,
N. Kuropatkin
,
M. March
,
R. Miquel
,
B. Nord
,
A. Roodman
,
E. Sanchez
,
B. Santiago
,
V. Scarpine
,
R. Schindler
,
M. Schubnell
,
I. Sevilla-Noarbe
,
M. Smith
,
R. C. Smith
,
M. Soares-Santos
,
F. Sobreira
,
E. Suchyta
,
G. Tarle
,
D. Thomas
,
D. L. Tucker
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R. H. Wechsler
,
R. C. Wolf,
,
B. Yanny
The Astrophysical Journal
http://iopscience.iop.org/0004-637X/852/2/99
Light Curves of the Neutron Star Merger GW170817/SSS17a: Implications for R-Process Nucleosynthesis. (arXiv:1710.05443v1 [astro-ph.HE])
Virtual Journal - Volume 15, Issue 42 - article #35
M. R. Drout
,
A. L. Piro
,
B. J. Shappee
,
C. D. Kilpatrick
,
J. D. Simon
,
C. Contreras
,
D. A. Coulter
,
R. J. Foley
,
M. R. Siebert
,
N. Morrell
,
K. Boutsia
,
F. Di Mille
,
T. W.-S. Holoien
,
D. Kasen
,
J. A. Kollmeier
,
B. F. Madore
,
A. J. Monson
,
A. Murguia-Berthier
,
Y.-C. Pan
,
J. X. Prochaska
,
E. Ramirez-Ruiz
,
A. Rest
,
C. Adams
,
K. Alatalo
,
E. Bañados
,
J. Baughman
,
T. C. Beers
,
R. A. Bernstein
,
T. Bitsakis
,
A. Campillay
,
T. T. Hansen
,
C. R. Higgs
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A. P. Ji
,
G. Maravelias
,
J. L. Marshall
,
C. Moni Bidin
,
J. L. Prieto
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K. C. Rasmussen
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C. Rojas-Bravo
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A. L. Strom
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N. Ulloa
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J. Vargas-González
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Z. Wan
,
D. D. Whitten
http://arxiv.org/abs/1710.05443
Detailed chemical abundance analysis of the thick disk star cluster Gaia 1. (arXiv:1709.04022v1 [astro-ph.GA])
Virtual Journal - Volume 15, Issue 37 - article #3
Andreas Koch
,
Terese T. Hansen
,
Andrea Kunder
http://arxiv.org/abs/1709.04022
Chemical Abundance Analysis of Three $alpha$-Poor, Metal-Poor Stars in the Ultra-Faint Dwarf Galaxy Horologium I. (arXiv:1708.02290v1 [astro-ph.SR])
Virtual Journal - Volume 15, Issue 32 - article #1
D. Q. Nagasawa
,
J. L. Marshall
,
J. D. Simon
,
T. T. Hansen
,
T. S. Li
,
R. A. Bernstein
,
E. Balbinot
,
A. Drlica-Wagner
,
A. B. Pace
,
L. E. Strigari
,
C. M. Pellegrino
,
D. L. DePoy
,
N. B. Suntzeff
,
K. Bechtol
,
T. M. C. Abbott
,
F. B. Abdalla
,
S. Allam
,
J. Annis
,
A. Benoit-Lévy
,
E. Bertin
,
D. Brooks
,
A. Carnero Rosell
,
M. Carrasco Kind
,
J. Carretero
,
C. E. Cunha
,
C. B. D'Andrea
,
L. N. da Costa
,
C. Davis
,
S. Desai
,
P. Doel
,
T. F. Eifler
,
B. Flaugher
,
P. Fosalba
,
J. Frieman
,
J. García-Bellido
,
E. Gaztanaga
,
D. W. Gerdes
,
D. Gruen
,
R. A. Gruendl
,
J. Gschwend
,
G. Gutierrez
,
W. G. Hartley
,
K. Honscheid
,
D. J. James
,
T. Jeltema
,
E. Krause
,
K. Kuehn
,
S. Kuhlmann
,
N. Kuropatkin
,
M. March
,
R. Miquel
,
B. Nord
,
A. Roodman
,
E. Sanchez
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B. Santiago
,
V. Scarpine
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R. Schindler
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M. Schubnell
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I. Sevilla-Noarbe
,
et al.
(12 additional authors not shown)
http://arxiv.org/abs/1708.02290
RAVE J203843.2–002333: The First Highly R-process-enhanced Star Identified in the RAVE Survey
Virtual Journal - Volume 15, Issue 29 - article #15
Vinicius M. Placco
,
Erika M. Holmbeck
,
Anna Frebel
,
Timothy C. Beers
,
Rebecca A. Surman
,
Alexander P. Ji
,
Rana Ezzeddine
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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
An r -process Enhanced Star in the Dwarf Galaxy Tucana III
Virtual Journal - Volume 15, Issue 12 - article #26
T. T. Hansen
,
J. D. Simon
,
J. L. Marshall
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T. S. Li
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D. Carollo
,
D. L. DePoy
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D. Q. Nagasawa
,
R. A. Bernstein
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A. Drlica-Wagner
,
F. B. Abdalla
,
S. Allam
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J. Annis
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K. Bechtol
,
A. Benoit-Lévy
,
D. Brooks
,
E. Buckley-Geer
,
A. Carnero Rosell
,
M. Carrasco Kind
,
J. Carretero
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C. E. Cunha
,
L. N. da Costa
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S. Desai
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T. F. Eifler
,
A. Fausti Neto
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B. Flaugher
,
J. Frieman
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J. GarcÃa-Bellido
,
E. Gaztanaga
,
D. W. Gerdes
,
D. Gruen
,
R. A. Gruendl
,
J. Gschwend
,
G. Gutierrez
,
D. J. James
,
E. Krause
,
K. Kuehn
,
N. Kuropatkin
,
O. Lahav
,
R. Miquel
,
A. A. Plazas
,
A. K. Romer
,
E. Sanchez
,
B. Santiago
,
V. Scarpine
,
R. C. Smith
,
M. Soares-Santos
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F. Sobreira
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E. Suchyta
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M. E. C. Swanson
,
G. Tarle
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A. R. Walker
(DES Collaboration)
The Astrophysical Journal
http://iopscience.iop.org/0004-637X/838/1/44
An R-process enhanced star in the dwarf galaxy Tucana III. (arXiv:1702.07430v1 [astro-ph.SR])
Virtual Journal - Volume 15, Issue 9 - article #2
T.T. Hansen
,
J. D. Simon
,
J. L. Marshall
,
T. S. Li
,
D. Carollo
,
D. L. DePoy
,
D. Q. Nagasawa
,
R. A. Bernstein
,
A. Drlica-Wagner
,
F. B. Abdalla
,
S. Allam
,
J. Annis
,
K. Bechtol
,
A. Benoit-Lévy
,
D. Brooks
,
E. Buckley-Geer
,
A. Carnero Rosell
,
M. Carrasco Kind
,
J. Carretero
,
C. E. Cunha
,
L. N. da Costa
,
S. Desai
,
T. F. Eifler
,
A. Fausti Neto
,
B. Flaugher
,
J. Frieman
,
J. García-Bellido
,
E. Gaztanaga
,
D. W. Gerdes
,
D. Gruen
,
R. A. Gruendl
,
J. Gschwend
,
G. Gutierrez
,
D. J. James
,
E. Krause
,
K. Kuehn
,
N. Kuropatkin
,
O. Lahav
,
R. Miquel
,
A. A. Plazas
,
A. K. Romer
,
E. Sanchez
,
B. Santiago
,
V. Scarpine
,
R. C. Smith
,
M. Soares-Santos
,
F. Sobreira
,
E. Suchyta
,
M. E. C. Swanson
,
G. Tarle
,
A. R. Walker
http://arxiv.org/abs/1702.07430
OBSERVATIONAL CONSTRAINTS ON FIRST-STAR NUCLEOSYNTHESIS. I. EVIDENCE FOR MULTIPLE PROGENITORS OF CEMP-NO STARS
Virtual Journal - Volume 14, Issue 50 - article #21
Jinmi Yoon
,
Timothy C. Beers
,
Vinicius M. Placco
,
Kaitlin C. Rasmussen
,
Daniela Carollo
,
Siyu He
,
Terese T. Hansen
,
Ian U. Roederer,
,
Jeff Zeanah
The Astrophysical Journal
http://iopscience.iop.org/0004-637X/833/1/20
Observational Constraints on First-Star Nucleosynthesis. I. Evidence for Multiple Progenitors of CEMP-no Stars. (arXiv:1607.06336v1 [astro-ph.SR])
Virtual Journal - Volume 14, Issue 30 - article #10
Jinmi Yoon
,
Timothy C. Beers
,
Vinicius M. Placco
,
Kaitlin C. Rasmussen
,
Daniela Carollo
,
Siyu He
,
Terese T. Hansen
,
Ian U. Roederer
http://arxiv.org/abs/1607.06336
Collective neutrino flavor conversion: Recent developments
Virtual Journal - Volume 14, Issue 7 - article #2
Sovan Chakraborty
,
Rasmus Sloth Hansen
,
Ignacio Izaguirre
,
Georg Raffelt
arXiv.org - Astrophysics - Volume: 2016, Issue: 12 Feb
arXiv:1602.02766
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other
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Self-induced neutrino flavor conversion without flavor mixing
Virtual Journal - Volume 14, Issue 6 - article #8
Sovan Chakraborty
,
Rasmus Sloth Hansen
,
Ignacio Izaguirre
,
Georg Raffelt
arXiv.org - Astrophysics - Volume: 2016, Issue: 5 Feb
arXiv:1602.00698
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other
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The role of binaries in the enrichment of the early Galactic halo. III. Carbon-enhanced metal-poor stars -- CEMP-s stars
Virtual Journal - Volume 14, Issue 3 - article #18
T.T. Hansen
,
J. Andersen
,
B. Nordström
,
T. C. Beers
,
V.M. Placco
,
J. Yoon
,
L.A. Buchhave
arXiv.org - Astrophysics - Volume: 2016, Issue: 15 Jan
arXiv:1601.03385
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Abundances of carbon-enhanced metal-poor stars as constraints on their formation
Virtual Journal - Volume 13, Issue 44 - article #1
C.J. Hansen
,
B. Nordstroem
,
T.T. Hansen
,
C.R. Kennedy
,
V.M. Placco
,
T.C. Beers
,
J. Andersen
,
G. Cescutti
,
C. Chiappini
arXiv.org - Astrophysics - Volume: 2015, Issue: 20 Nov
arXiv:1511.07812
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The role of binaries in the enrichment of the early Galactic halo. II. Carbon-Enhanced Metal-Poor Stars - CEMP-no stars
Virtual Journal - Volume 13, Issue 44 - article #8
T. T. Hansen
,
J. Andersen
,
B. Nordström
,
T. C. Beers
,
V.M. Placco
,
J. Yoon
,
L.A. Buchhave
arXiv.org - Astrophysics - Volume: 2015, Issue: 20 Nov
arXiv:1511.08197
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ps
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other
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HE 0017+0055 : A probable pulsating CEMP-rs star and long-period binary
Virtual Journal - Volume 13, Issue 39 - article #12
A. Jorissen
,
T. Hansen
,
S. Van Eck
,
J. Andersen
,
B. Nordstroem
,
L. Siess
,
G. Torres
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T. Masseron
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H. Van Winckel
arXiv.org - Astrophysics - Volume: 2015, Issue: 23 Oct
arXiv:1510.06045
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The role of binaries in the enrichment of the early Galactic halo. I. r-process-enhanced metal-poor stars
Virtual Journal - Volume 13, Issue 34 - article #23
T. T. Hansen
,
J. Andersen
,
B. Nordstrøm
,
T. C. Beers
,
J. Yoon
,
L. A. Buchhave
arXiv.org - Astrophysics - Volume: 2015, Issue: 18 Sep
arXiv:1509.05344
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other
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Self-induced flavor conversion of supernova neutrinos on small scales
Virtual Journal - Volume 13, Issue 27 - article #15
Sovan Chakraborty
,
Rasmus Sloth Hansen
,
Ignacio Izaguirre
,
Georg Raffelt
arXiv.org - Astrophysics - Volume: 2015, Issue: 31 Jul
arXiv:1507.07569
(cross-list from hep-ph) [
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other
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An Elemental Assay of Very, Extremely, and Ultra-metal-poor Stars
Virtual Journal - Volume 13, Issue 26 - article #46
T. Hansen
,
C. J. Hansen
,
N. Christlieb
,
T. C. Beers
,
D. Yong
,
M. S. Bessell
,
A. Frebel
,
A. E. GarcÃa Pérez
,
V. M. Placco
,
J. E. Norris
,
and
M. Asplund
The Astrophysical Journal - Volume: 807, Issue: 2
View article
PDF (1.00 MB)
An Elemental Assay of Very, Extremely, and Ultra Metal-Poor Stars
Virtual Journal - Volume 13, Issue 22 - article #2
T. Hansen
,
C. J. Hansen
,
N. Christlieb
,
T. C. Beers
,
D. Yong
,
M. S. Bessell
,
A. Frebel
,
A. E. Garcia Perez
,
V. M. Placco
,
J. E. Norris
,
M. Asplund
arXiv.org - Astrophysics - Volume: 2015, Issue: 5 Jun
arXiv:1506.00579
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New Abundances From Very Old Stars
Virtual Journal - Volume 13, Issue 10 - article #6
T. Hansen
,
C. J. Hansen
,
N. Christlieb
,
D. Yong
,
T. C. Beers
,
J. Andersen
arXiv.org - Astrophysics - Volume: 2015, Issue: 13 Mar
arXiv:1503.01990
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Exploring the Origin of Lithium, Carbon, Strontium and Barium with four new Ultra Metal-Poor Stars
Virtual Journal - Volume 12, Issue 20 - article #76
T. Hansen
,
C. J. Hansen
,
N. Christlieb
,
D. Yong
,
M. S. Bessell
,
A. E. García Pérez
,
T. C. Beers
,
V. M. Placco
,
A. Frebel
,
J. E. Norris
,
M. Asplund
arXiv.org - Astrophysics - Volume: 2014, Issue: 23 May
arXiv:1405.5846
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]
Exploring the Origin of Lithium, Carbon, Strontium, and Barium with Four New Ultra Metal-poor Stars
Virtual Journal - Volume 12, Issue 20 - article #270
T. Hansen
,
C. J. Hansen
,
N. Christlieb
,
D. Yong
,
M. S. Bessell
,
A. E. GarcÃa Pérez
,
T. C. Beers
,
V. M. Placco
,
A. Frebel
,
J. E. Norris
,
and
M. Asplund
The Astrophysical Journal - Volume: 787, Issue: 2
View article
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