Chemical abundances in the galactic bulge:: Evidence for a fast enrichment

被引：0

作者：

Zoccali, M. ^{[1
]}

Minniti, D. ^{[1
]}

Barbuy, B. ^{[1
]}

Hill, V. ^{[1
]}

Lecureur, A. ^{[1
]}

Renzini, A. ^{[1
]}

Momany, Y. ^{[1
]}

Gomez, A. ^{[1
]}

Ortolani, S. ^{[1
]}

机构：

[1] Pontificia Univ Catolica Chile, Dept Astron & Astrofis, Casilla 306, Santiago 22, Chile

来源：

XI IAU REGIONAL LATIN AMERICAN MEETING OF ASTRONOMY | 2006年 / 26卷

关键词：

galaxy : bulge; stars : abundances; stars : atmospheres;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We derived oxygen abundances for 42 K giants in four fields towards the Galactic bulge. We present here the results for Oxygen, as measured from the forbidden line at 6300 angstrom. Oxygen shows a well defined trend with [Fe/H]. with [O/Fe] being higher in bulge stars than in thick disk ones, the latter already more oxygen enhanced than thin disk stars (Bensby, Feltzing, & Lundstrom 2004). This result supports the scenario that the bulge formed faster and probably earlier than the thick disk. http://www.astroscu.unam.mx/rmaa/RMxAC..26/PDF/RMxAC..26_mzoccali.pdf

引用

页码：88 / +

页数：2

共 50 条

[31] NLTE Analysis of Copper Abundances in the Galactic Bulge Stars
Xu, X. D.
Shi, J. R.
Yan, H. L.
[J]. ASTROPHYSICAL JOURNAL, 2019, 875 (02):
[32] CARBON ABUNDANCES IN PLANETARY-NEBULAE IN THE GALACTIC BULGE
WEBSTER, BL
[J]. PROCEEDINGS ASTRONOMICAL SOCIETY OF AUSTRALIA, 1984, 5 (04): : 535 - 537
[33] Elemental abundances in AGB stars and the formation of the Galactic bulge
Uttenthaler, S.
Blommaert, J. A. D. L.
Lebzelter, T.
Ryde, N.
Wood, P. R.
Schultheis, M.
Aringer, B.
[J]. ASSEMBLING THE PUZZLE OF THE MILKY WAY, 2012, 19
[34] The Chemical Evolution of the Galactic Bulge
F. Matteucci
D. Romano
[J]. Astrophysics and Space Science, 1999, 265 : 311 - 318
[35] The chemical evolution of the galactic bulge
Matteucci, E
Romano, D
[J]. ASTROPHYSICS AND SPACE SCIENCE, 1999, 265 (1-4) : 311 - 318
[36] Abundances of stars in the Galactic bulge obtained using the Keck telescope
Rich, RM
McWilliam, A
[J]. DISCOVERIES AND RESEARCH PROSPECTS FROM 8- TO 10-METER-CLASS TELESCOPES, 2000, 4005 : 150 - 161
[37] Chemical Abundances in the Galactic Center
Ramirez, Solange V.
Cunha, Katia
Sellgren, Kris
Smith, Verne V.
Blum, Robert D.
Terndrup, Donald
[J]. GALACTIC CENTER: A WINDOW TO THE NUCLEAR ENVIRONMENT OF DISK GALAXIES, 2011, 439 : 263 - +
[38] Oxygen and zinc abundances in 417 Galactic bulge red giants
da Silveira, C. R.
Barbuy, B.
Friaca, A. C. S.
Hill, V.
Zoccali, M.
Rafelski, M.
Gonzalez, O. A.
Minniti, D.
Renzini, A.
Ortolani, S.
[J]. ASTRONOMY & ASTROPHYSICS, 2018, 614
[39] Oxygen and zinc abundances in 417 Galactic bulge red giants
[J]. 1600, EDP Sciences (614):
[40] SEPARATING THE CONJOINED RED CLUMP IN THE GALACTIC BULGE: KINEMATICS AND ABUNDANCES
De Propris, Roberto
Rich, R. Michael
Kunder, Andrea
Johnson, Christian I.
Koch, Andreas
Brough, Sarah
Conselice, Christopher J.
Gunawardhana, Madusha
Palamara, David
Pimbblet, Kevin
Wijesinghe, Dinuka
[J]. ASTROPHYSICAL JOURNAL LETTERS, 2011, 732 (02)

← 1 2 3 4 5 →