The chemical evolution of the Galactic Bulge seen through micro-lensing events

S. Feltzing; T. Bensby; J. Meléndez; D. Adén; M. Asplund; A. Gould; J. Johnson; S. Lucatello; A. Gal-Yam

doi:10.1051/epjconf/20121906002

The chemical evolution of the Galactic Bulge seen through micro-lensing events

S. Feltzing^*, T. Bensby, J. Meléndez, D. Adén, M. Asplund, A. Gould, J. Johnson, S. Lucatello, A. Gal-Yam

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Galactic bulges are central to understanding galaxy formation and evolution. Here we report on recent studies using micro-lensing events to obtain spectra of high resolution and moderately high signal-to-noise ratios of dwarf stars in the Galactic bulge. Normally this is not feasible for the faint turn-off stars in the Galactic bulge, but micro-lensing offers this possibility. Elemental abundance trends in the Galactic bulge as traced by dwarf stars are very similar to those seen for dwarf stars in the solar neighbourhood. We discuss the implications of the ages and metallicity distribution function derived for the micro-lensed dwarf stars in the Galactic bulge.

Original language	English
Title of host publication	Assembling the Puzzle of the Milky Way
DOIs	https://doi.org/10.1051/epjconf/20121906002
Publication status	Published - 2012
Event	International Conference on Assembling the Puzzle of the Milky Way - Le Grand-Bornand, France Duration: 17 Apr 2011 → 22 Apr 2011

Publication series

Name	EPJ Web of Conferences
Volume	19
ISSN (Print)	2101-6275
ISSN (Electronic)	2100-014X

Conference

Conference	International Conference on Assembling the Puzzle of the Milky Way
Country/Territory	France
City	Le Grand-Bornand
Period	17/04/11 → 22/04/11

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10.1051/epjconf/20121906002

Cite this

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title = "The chemical evolution of the Galactic Bulge seen through micro-lensing events",

abstract = "Galactic bulges are central to understanding galaxy formation and evolution. Here we report on recent studies using micro-lensing events to obtain spectra of high resolution and moderately high signal-to-noise ratios of dwarf stars in the Galactic bulge. Normally this is not feasible for the faint turn-off stars in the Galactic bulge, but micro-lensing offers this possibility. Elemental abundance trends in the Galactic bulge as traced by dwarf stars are very similar to those seen for dwarf stars in the solar neighbourhood. We discuss the implications of the ages and metallicity distribution function derived for the micro-lensed dwarf stars in the Galactic bulge.",

author = "S. Feltzing and T. Bensby and J. Mel{\'e}ndez and D. Ad{\'e}n and M. Asplund and A. Gould and J. Johnson and S. Lucatello and A. Gal-Yam",

year = "2012",

doi = "10.1051/epjconf/20121906002",

language = "English",

isbn = "9782759807185",

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note = "International Conference on Assembling the Puzzle of the Milky Way ; Conference date: 17-04-2011 Through 22-04-2011",

}

Feltzing, S, Bensby, T, Meléndez, J, Adén, D, Asplund, M, Gould, A, Johnson, J, Lucatello, S & Gal-Yam, A 2012, The chemical evolution of the Galactic Bulge seen through micro-lensing events. in Assembling the Puzzle of the Milky Way., 06002, EPJ Web of Conferences, vol. 19, International Conference on Assembling the Puzzle of the Milky Way, Le Grand-Bornand, France, 17/04/11. https://doi.org/10.1051/epjconf/20121906002

TY - GEN

T1 - The chemical evolution of the Galactic Bulge seen through micro-lensing events

AU - Feltzing, S.

AU - Bensby, T.

AU - Meléndez, J.

AU - Adén, D.

AU - Asplund, M.

AU - Gould, A.

AU - Johnson, J.

AU - Lucatello, S.

AU - Gal-Yam, A.

PY - 2012

Y1 - 2012

N2 - Galactic bulges are central to understanding galaxy formation and evolution. Here we report on recent studies using micro-lensing events to obtain spectra of high resolution and moderately high signal-to-noise ratios of dwarf stars in the Galactic bulge. Normally this is not feasible for the faint turn-off stars in the Galactic bulge, but micro-lensing offers this possibility. Elemental abundance trends in the Galactic bulge as traced by dwarf stars are very similar to those seen for dwarf stars in the solar neighbourhood. We discuss the implications of the ages and metallicity distribution function derived for the micro-lensed dwarf stars in the Galactic bulge.

AB - Galactic bulges are central to understanding galaxy formation and evolution. Here we report on recent studies using micro-lensing events to obtain spectra of high resolution and moderately high signal-to-noise ratios of dwarf stars in the Galactic bulge. Normally this is not feasible for the faint turn-off stars in the Galactic bulge, but micro-lensing offers this possibility. Elemental abundance trends in the Galactic bulge as traced by dwarf stars are very similar to those seen for dwarf stars in the solar neighbourhood. We discuss the implications of the ages and metallicity distribution function derived for the micro-lensed dwarf stars in the Galactic bulge.

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U2 - 10.1051/epjconf/20121906002

DO - 10.1051/epjconf/20121906002

M3 - Conference contribution

SN - 9782759807185

T3 - EPJ Web of Conferences

BT - Assembling the Puzzle of the Milky Way

T2 - International Conference on Assembling the Puzzle of the Milky Way

Y2 - 17 April 2011 through 22 April 2011

ER -

The chemical evolution of the Galactic Bulge seen through micro-lensing events

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