Search - Virtual Journal of Nuclear Astrophysics

On the Use of Field RR Lyrae as Galactic Probes. III. The $alpha$-element abundances. (arXiv:2104.08113v1 [astro-ph.GA])

Virtual Journal - Volume 19, Issue 17 - article #2
J. Crestani (1,2,3), V.F. Braga (3,4), M. Fabrizio (3,4), G. Bono (2,3), C. Sneden (5), G.W. Preston (6), I. Ferraro (3), G. Iannicola (3), M. Nonino (7), G. Fiorentino (3), F. Thévenin (8), B. Lemasle (9), Z. Prudil (8), A. Alves-Brito (1), G. Altavilla (3,4), B. Chaboyer (10), M. Dall'Ora (11), V. D'Orazi (12,13), C.K. Gilligan (10), E. Grebel (8), A.J. Koch-Hansen (9), H. Lala (9), M. Marengo (14), S. Marinoni (3,4), P.M. Marrese (3,4), C.E. Martínez-Vázquez (15), N. Matsunaga (16), M. Monelli (17), J.P. Mullen (14), J. Neeley (18), R. da Silva (3,4), P.B. Stetson (19), M. Salaris (20), J. Storm (21), E. Valenti (22), M. Zoccali (23,24) ((1) Departamento de Astronomia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil, (2) Dipartimento di Fisica, Università di Roma Tor Vergata, Roma, Italy, (3) INAF-Osservatorio Astronomico di Roma, Monte Porzio Catone, Italy, (4) Space Science Data Center, Roma, Italy, (5) Department of Astronomy, McDonald Observatory, The University of Texas, Austin, TX, USA, (6) The Observatories of the Carnegie Institution for Science, Pasadena, CA, USA, (7) INAF-Osservatorio Astronoico di Trieste, Trieste, Italy, (8) Université de Nice Sophia-antipolis, CNRS, Observatoire de la Côte d'Azur, Laboratoire Lagrange, Nice, France, (9) Astronomisches Rechen-Institut, Zentrum für Astronomie der Universität Heidelberg, Heidelberg, Germany, (10) Department of Physics, Astronomy, Dartmouth College, Hanover, USA, (11) INAF-Osservatorio Astronomico di Capodimonte, Napoli, Italy, (12) INAF-Osservatorio Astronomico di Padova, Padova, Italy, (13) School of Physics, Astronomy, Monash University, Clayton, Melbourne, Australia, (14) Department of Physics, Astronomy, Iowa State University, Ames, IA, USA, (15) Cerro Tololo Inter-American Observatory, NSF's National Optical-Infrared Astronomy Research Laboratory, La Serena, Chile, (16) Department of Astronomy, The University of Tokyo, Tokyo, Japan, (17) Instituto de Astrofísica de Canarias, La Laguna, Tenerife, Spain, (18) Department of Physics, Florida Atlantic University, Boca Raton, FL, USA, (19) Herzberg Astronomy, Astrophysics, National Research Council, Victoria, BC, Canada, (20) Astrophysics Research Institute, Liverpool John Moores University, Liverpool, UK, (21) Leibniz-Institut für Astrophysik Potsdam, Potsdam, Germany, (22) European Southern Observatory, Garching bei Munchen, Germany, (23) Instituto Milenio de Astrofísica, Santiago, Chile, (24) Pontificia Universidad Catolica de Chile, Instituto de Astrofisica, Santiago, Chile)
http://arxiv.org/abs/2104.08113

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])

Virtual Journal - Volume 17, Issue 16 - article #9
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

Chemical analysis of eight giant stars of the globular cluster NGC 6366. (arXiv:1801.09968v1 [astro-ph.GA])

Virtual Journal - Volume 16, Issue 5 - article #3
Arthur A. Puls (1), Alan Alves-Brito (1), Fabíola Campos (2), Bruno Dias (3), Beatriz Barbuy (4) ((1) Departamento de Astronomia -- Universidade Federal do Rio Grande do Sul -- Porto Alegre -- Brazil, (2) Department of Astronomy -- University of Texas at Austin -- Austin -- USA, (3) European Southern Observatory -- Santiago -- Chile, (4) Universidade de São Paulo -- IAG -- São Paulo -- Brazil)
http://arxiv.org/abs/1801.09968

Iron-peak elements Sc, V, Mn, Cu and Zn in Galactic bulge globular clusters. (arXiv:1801.06157v1 [astro-ph.SR])

Virtual Journal - Volume 16, Issue 3 - article #8
H. Ernandes, B. Barbuy, A. Alves-Brito, A. Friaca, C. Siqueira-Mello, D.M. Allen
http://arxiv.org/abs/1801.06157

The temporal evolution of neutron-capture elements in the Galactic discs. (arXiv:1711.03643v1 [astro-ph.SR])

Virtual Journal - Volume 15, Issue 46 - article #19
Lorenzo Spina, Jorge Meléndez, Amanda I. Karakas, Leonardo dos Santos, Megan Bedell, Martin Asplund, Ivan Ramírez, David Yong, Alan Alves-Brito, Jacob L. Bean, Stefan Dreizler
http://arxiv.org/abs/1711.03643

Atypical Mg-poor Milky Way Field Stars with Globular Cluster Second-generation-like Chemical Patterns

Virtual Journal - Volume 15, Issue 34 - article #34
J. G. FernÃƒÂ¡ndez-Trincado, O. Zamora, D. A. GarcÃƒÂa-HernÃƒÂ¡ndez, Diogo Souto, F. DellÃ¢Â€Â™Agli, R. P. Schiavon, D. Geisler, B. Tang, S. Villanova, Sten Hasselquist, R. E. Mennickent, Katia Cunha, M. Shetrone, Carlos Allende Prieto, K. Vieira, G. Zasowski, J. Sobeck, C. R. Hayes, S. R. Majewski, V. M. Placco, T. C. Beers, D. R. G. Schleicher, A. C. Robin, Sz. MÃƒÂ©szÃƒÂ¡ros, T. Masseron, Ana E. GarcÃƒÂa PÃƒÂ©rez, F. Anders, A. Meza, A. Alves-Brito, R. Carrera, D. Minniti, R. R. Lane, E. FernÃƒÂ¡ndez-Alvar, E. Moreno, B. Pichardo, A. PÃƒÂ©rez-Villegas, M. Schultheis, A. Roman-Lopes, C. E. Fuentes, C. Nitschelm, P. Harding, D. Bizyaev, K. Pan, D. Oravetz, A. Simmons, Inese I. Ivans, S. Blanco-Cuaresma, J. HernÃƒÂ¡ndez, J. Alonso-GarcÃƒÂa, O. Valenzuela,, J. ChanamÃƒÂ©
The Astrophysical Journal Letters
http://iopscience.iop.org/2041-8205/846/1/L2

Atypical Mg-poor Milky Way field stars with globular cluster second-generation like chemical patterns. (arXiv:1707.03108v1 [astro-ph.GA])

Virtual Journal - Volume 15, Issue 28 - article #3
J. G. Fernández-Trincado, O. Zamora, D. A. Garcia-Hernandez, Diogo Souto, F. Dell'Agli, R. P. Schiavon, D. Geisler, B. Tang, S. Villanova, Sten Hasselquist, R. E. Mennickent, Katia Cunha, M. Shetrone, Carlos Allende Prieto, K. Vieira, G. Zasowski, J. Sobeck, C. R. Hayes, S. R. Majewski, V. M. Placco, T. C. Beers, D. R. G. Schleicher, A. C. Robin, Sz. Meszaros, T. Masseron, Ana E. Garcia Perez, F. Anders, A. Meza, A. Alves-Brito, R. Carrera, D. Minniti, R. R. Lane, E. Fernandez-Alvar, E. Moreno, B. Pichardo, A. Perez-Villegas, M. Schultheis, A. Roman-Lopes, C. E. Fuentes, C. Nitschelm, P. Harding, D. Bizyaev, K. Pan, D. Oravetz, A. Simmons, Inese I. Ivans, S. Blanco-Cuaresma, J. Hernandez, J. Alonso-Garcia, O. Valenzuela, J. Chaname
http://arxiv.org/abs/1707.03108

Sc and neutron-capture abundances in Galactic low- and high-alpha field halo stars. (arXiv:1701.02423v1 [astro-ph.SR])

Virtual Journal - Volume 15, Issue 2 - article #12
C. K. Fishlock, D. Yong, A. I. Karakas, A. Alves-Brito, J. Melendez, P. E. Nissen, C. Kobayashi, A. R. Casey
http://arxiv.org/abs/1701.02423

The EMBLA survey - metal-poor stars in the Galactic bulge

Virtual Journal - Volume 14, Issue 23 - article #13
Howes, L. M., Asplund, M., Keller, S. C., Casey, A. R., Yong, D., Lind, K., Frebel, A., Hays, A., Alves-Brito, A., Bessell, M. S., Casagrande, L., Marino, A. F., Nataf, D. M., Owen, C. I., Da Costa, G. S., Schmidt, B. P., Tisserand, P.
>Oxford University Press
http://mnras.oxfordjournals.org/cgi/content/short/460/1/884?rss=1

GRACES observations of young [{alpha}/Fe]-rich stars

Virtual Journal - Volume 14, Issue 17 - article #17
Yong, D., Casagrande, L., Venn, K. A., Chene, A.-N., Keown, J., Malo, L., Martioli, E., Alves-Brito, A., Asplund, M., Dotter, A., Martell, S. L., Melendez, J., Schlesinger, K. J.
>Oxford University Press
http://mnras.oxfordjournals.org/cgi/content/short/459/1/487?rss=1

The Gaia-ESO Survey: radial metallicity gradients and age-metallicity relation of stars in the Milky Way disk

Virtual Journal - Volume 12, Issue 21 - article #103
M. Bergemann, G. R. Ruchti, A. Serenelli, S. Feltzing, A. Alves-Brito, M. Asplund, T. Bensby, P. Gruiters, U. Heiter, A. Hourihane, et al. (37 more) A. Korn, K. Lind, A. Marino, P. Jofre, T. Nordlander, N. Ryde, C. C. Worley, G. Gilmore, S. Randich, A. M. N. Ferguson, R. D. Jeffries, G. Micela, I. Negueruela, T. Prusti, H.-W. Rix, A. Vallenari, E. J. Alfaro, C. Allende Prieto, A. Bragaglia, S. E. Koposov, A. C. Lanzafame, E. Pancino, A. Recio-Blanco, R. Smiljanic, N. Walton, M. T. Costado, E. Franciosini, V. Hill, C. Lardo, P. de Laverny, L. Magrini, E. Maiorca, T. Masseron, L. Morbidelli, G. Sacco, G. Kordopatis and G. TautvaiÃ…Â¡ienÃ„Â—
Astronomy and Astrophysics - Volume: 565, Issue: May 2014
http://dx.doi.org/10.1051/0004-6361/201423456
Abstract Full HTML PDF (1.339 MB) ePUB (1.839 MB) References NASA ADS Abstract Service

Full spectral fitting of Milky Way and M 31 globular clusters: ages and metallicities

Virtual Journal - Volume 11, Issue 3 - article #40
E. Cezario, P. R. T. Coelho, A. Alves-Brito, D. A. Forbes and J. P. Brodie
Astronomy and Astrophysics - Volume: 549, Issue: January 2013
http://dx.doi.org/10.1051/0004-6361/201220336
Abstract | Full HTML | PDF (536.3 KB) | References | Online Material | NASA ADS Abstract Service

CNO and F abundances in the globular cluster M22 (NGC 6656)

Virtual Journal - Volume 10, Issue 6 - article #3
Alan Alves-Brito, David Yong, Jorge Meléndez, Sergio Vásquez, Amanda I. Karakas
arXiv.org - Astrophysics - Volume: 2012, Issue: 10 Feb
arXiv:1202.0797 [pdf, ps, other]

Spectra of globular clusters in the Sombrero galaxy: evidence for spectroscopic metallicity bimodality

Virtual Journal - Volume 9, Issue 42 - article #32
Alan Alves-Brito, George K. T. Hau, Duncan A. Forbes, Lee R. Spitler, Jay Strader, Jean P. Brodie and Katherine L. Rhode
Monthly Notices of the Royal Astronomical Society - Volume: 417, Issue: 3
Abstract Full Article (HTML)PDF(843K)References Request Permissions

CNO and F abundances in the barium star HD 123396

Virtual Journal - Volume 9, Issue 29 - article #4
Alan Alves-Brito, Amanda Karakas, David Yong, Jorge Meléndez, Sergio Vásquez
arXiv.org - Astrophysics - Volume: 2011, Issue: 22 Jul
arXiv:1107.3461 [pdf, ps, other]

Alpha element abundances and gradients in the Milky Way bulge from FLAMES-GIRAFFE spectra of 650 K giants

Virtual Journal - Volume 9, Issue 13 - article #3
O. A. Gonzalez, M. Rejkuba, M. Zoccali, V. Hill, G. Battaglia, C. Babusiaux, D. Minniti, B. Barbuy, A. Alves-Brito, A. Renzini, A. Gomez, S. Ortolani
arXiv.org - Astrophysics - Volume: 2011, Issue: 1 Apr
arXiv:1103.6104 [pdf, ps, other]

The first detailed study of the chemical composition of K giants in the inner Galactic disk

Virtual Journal - Volume 8, Issue 17 - article #17
T. Bensby (1), A. Alves-Brito (2), M.S. Oey (3), D. Yong (4), J. Meléndez (5) ((1) European Southern Observatory, Chile, (2) Departamento de Astronomia y Astrofisica, Universidad Catolica de Chile, (3) Dept. of Astronomy, University of Michigan, USA, (4) Research School of Astronomy and Astrophysics, Australian National University, (5) Centro de Astrofisica, Universidade de Porto, Portugal)
arXiv.org - Astrophysics - Volume: 2010, Issue: 23 Apr
arXiv:1004.2833 [pdf, ps, other]

Virtual Journal - Volume 8, Issue 3 - article #7
A. Alves-Brito, J. Melendez, M. Asplund, I. Ramirez, D. Yong
arXiv.org - Astrophysics - Volume: 2010, Issue: 15 Jan
arXiv:1001.2521 [ps, pdf, other]

Chemical abundances for 11 bulge stars from high-resolution, near-IR spectra

Virtual Journal - Volume 7, Issue 41 - article #3
N. Ryde, B. Gustafsson, B. Edvardsson, J. Melendez, A. Alves-Brito, M. Asplund, B. Barbuy, V. Hill, H. U. Kaufl, D. Minniti, S. Ortolani, A. Renzini, M. Zoccali
arXiv.org - Astrophysics - Volume: 2009, Issue: 9 Oct
arXiv:0910.0448 [ps, pdf, other]

VLT-UVES abundance analysis of four giants in NGC 6553

Virtual Journal - Volume 6, Issue 36 - article #18
A. Alves-Brito, B. Barbuy, M. Zoccali, D. Minniti, S. Ortolani, V. Hill, A. Renzini, L. Pasquini, E. Bica, R. M. Rich, J. Meléndez, and Y. Momany
Astronomy and Astrophysics - Volume: 460, Issue: 1
Abstract | Full HTML | PDF file (485 KB) | PS file (194 KB) | References | Online Material

Abundance variations in the globular cluster M71 (NGC 6838)

Virtual Journal - Volume 6, Issue 25 - article #1
A. Alves-Brito, R. P. Schiavon, B. Castilho, B. Barbuy
arXiv.org - Astrophysics - Volume: 2008, Issue: 19 Jun
arXiv:0806.2629 [ps, pdf, other]

Virtual Journal - Volume 6, Issue 23 - article #13
J. Meléndez, M. Asplund, A. Alves-Brito, K. Cunha, B. Barbuy, M. S. Bessell, C. Chiappini, K. C. Freeman, I. Ramírez, V. V. Smith, and D. Yong
Astronomy and Astrophysics - Volume: 484, Issue: 3
Abstract | PDF file (168.9 KB) | PS file (67.72 KB)

VLT-UVES analysis of 5 giants in 47 Tucanae

Virtual Journal - Volume 3, Issue 18 - article #35
A. Alves-Brito, B. Barbuy, S. Ortolani, Y. Momany, V. Hill, M. Zoccali, A. Renzini, D. Minniti, L. Pasquini, E. Bica and R. M. Rich
Astronomy and Astrophysics – Vol 435, No 2 – May 2005
Abstract , PDF file (2.81 MB) , PS file (2.51 MB)