Chemical similarities between the Galactic bulge and local thick disk red giant stars: analysis from optical data

被引：0

作者：

Alves-Brito, Alan ^{[1
]}

Melendez, Jorge ^{[2
]}

Asplund, Martin ^{[3
]}

机构：

[1] Univ Sao Paulo, IAG, Sao Paulo, Brazil

[2] Univ Porto, Ctr Astrofis, Porto, Portugal

[3] Max Planck Inst Astrophys, Garching, Germany

来源：

CHEMICAL ABUNDANCES IN THE UNIVERSE: CONNECTING FIRST STARS TO PLANETS | 2010年 / 265期

基金：

巴西圣保罗研究基金会;

关键词：

stars: abundances; Galaxy: bulge; Galaxy: disk; ABUNDANCE ANALYSIS; HIGH-RESOLUTION; EVOLUTION; SPECTRA;

D O I：

10.1017/S1743921310000839

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Galactic structure and composition remain as one of the greatest open problems in modern astrophysics. We show here that there are chemical similarities between the Galactic bulge and local thick disk red giant stars. This finding puts strong constraints on the IMF, SFR. and chemical enrichment timescale of the bulge and thick disk. Our results are based upon a detailed elemental abundance analysis of 80 high S/N and high resolution optical spectra of giant stars, in the range -1.5 < [Fe/H] < +0.5.

引用

页码：342 / +

页数：2

共 10 条

[1] Chemical similarities between Galactic bulge and local thick disk red giant stars
Melendez, J.
Asplund, M.
Alves-Brito, A.
Cunha, K.
Barbuy, B.
Bessell, M. S.
Chiappini, C.
Freeman, K. C.
Ramirez, I.
Smith, V. V.
Yong, D.
ASTRONOMY & ASTROPHYSICS, 2008, 484 (03) : L21 - L25
[2] Chemical similarities between Galactic bulge and local thick disk red giants: O, Na, Mg, Al, Si, Ca, and Ti
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Melendez, J.
Asplund, M.
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ASTRONOMY & ASTROPHYSICS, 2010, 513
[3] Thick disk kinematics from data on red clump giants at the north galactic pole
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[4] Thick disk kinematics from data on red clump giants at the north galactic pole
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[6] Parameters of the local warp of the stellar-gaseous galactic disk from the kinematics of Tycho-2 nearby red giant clump stars
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[7] Parameters of the local warp of the stellar-gaseous galactic disk from the kinematics of Tycho-2 nearby red giant clump stars
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[8] Investigation of the Galactic thick disk from star count surveys by using multivariate data analysis
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[9] Local stellar kinematics from RAVE data-VIII. Effects of the Galactic disc perturbations on stellar orbits of red clump stars
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ASTROPHYSICS AND SPACE SCIENCE, 2018, 363 (02)
[10] Local stellar kinematics from RAVE data—VIII. Effects of the Galactic disc perturbations on stellar orbits of red clump stars
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Astrophysics and Space Science, 2018, 363

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