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

M. Zoccali; D. Minniti; B. Barbuy; V. Hill; A. Lecureur; A. Renzini; Y. Momany; A. Gómez; S. Ortolani

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

M. Zoccali, D. Minniti, B. Barbuy, V. Hill, A. Lecureur, A. Renzini, Y. Momany, A. Gómez, S. Ortolani

Exact Sciences School

Research output: Contribution to journal › Conference article › peer-review

1 Citation (Scopus)

Abstract

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 Å. 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, & Lundström 2004). This result supports the scenario that the bulge formed faster and probably earlier than the thick disk.

Original language	English
Pages (from-to)	88-89
Number of pages	2
Journal	Revista Mexicana de Astronomia y Astrofisica: Serie de Conferencias
Volume	26
Publication status	Published - 2006
Event	XI IAU Regional Latin American Meeting of Astronomy, LARIM2005 - Pucon, Chile Duration: 12 Dec 2005 → 16 Dec 2005

Keywords

Galaxy: Bulge
Stars: Abundances
Stars: Atmospheres

ASJC Scopus subject areas

Space and Planetary Science
Astronomy and Astrophysics

Cite this

@article{b8d68ebe51ab49ceba20a578e5888232,

title = "Chemical abundances in the galactic bulge: Evidence for a fast enrichment",

abstract = "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 {\AA}. 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, & Lundstr{\"o}m 2004). This result supports the scenario that the bulge formed faster and probably earlier than the thick disk.",

keywords = "Galaxy: Bulge, Stars: Abundances, Stars: Atmospheres",

author = "M. Zoccali and D. Minniti and B. Barbuy and V. Hill and A. Lecureur and A. Renzini and Y. Momany and A. G{\'o}mez and S. Ortolani",

year = "2006",

language = "English",

volume = "26",

pages = "88--89",

journal = "Revista Mexicana de Astronomia y Astrofisica: Serie de Conferencias",

issn = "1405-2059",

publisher = "Universidad Nacional Autonoma de Mexico",

note = "XI IAU Regional Latin American Meeting of Astronomy, LARIM2005 ; Conference date: 12-12-2005 Through 16-12-2005",

}

TY - JOUR

T1 - Chemical abundances in the galactic bulge

T2 - XI IAU Regional Latin American Meeting of Astronomy, LARIM2005

AU - Zoccali, M.

AU - Minniti, D.

AU - Barbuy, B.

AU - Hill, V.

AU - Lecureur, A.

AU - Renzini, A.

AU - Momany, Y.

AU - Gómez, A.

AU - Ortolani, S.

PY - 2006

Y1 - 2006

N2 - 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 Å. 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, & Lundström 2004). This result supports the scenario that the bulge formed faster and probably earlier than the thick disk.

AB - 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 Å. 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, & Lundström 2004). This result supports the scenario that the bulge formed faster and probably earlier than the thick disk.

KW - Galaxy: Bulge

KW - Stars: Abundances

KW - Stars: Atmospheres

UR - http://www.scopus.com/inward/record.url?scp=70649106728&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:70649106728

SN - 1405-2059

VL - 26

SP - 88

EP - 89

JO - Revista Mexicana de Astronomia y Astrofisica: Serie de Conferencias

JF - Revista Mexicana de Astronomia y Astrofisica: Serie de Conferencias

Y2 - 12 December 2005 through 16 December 2005

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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