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The star formation history of the M31 galaxy derived from Long-Period-Variable star counts

Published online by Cambridge University Press:  30 December 2019

Maryam Torki ,
Atefeh Javadi ,
Jacco Th. van Loon  and
Hossein Safari
Maryam Torki
Affiliation:
Physics Department, Faculty of Science, University of Zanjan, Zanjan 45371-38791, Iran email: [email protected] School of Astronomy, Institute for Research in Fundamental Sciences (IPM), Tehran, 19395-5531, Iran
Atefeh Javadi
Affiliation:
School of Astronomy, Institute for Research in Fundamental Sciences (IPM), Tehran, 19395-5531, Iran
Jacco Th. van Loon
Affiliation:
Lennard-Jones Laboratories, Keele University, ST5 5BG, UK
Hossein Safari
Affiliation:
Physics Department, Faculty of Science, University of Zanjan, Zanjan 45371-38791, Iran email: [email protected]
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Abstract

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The determination of the star formation history is a key goal for understanding galaxies. In this regard, nearby galaxies in the Local Group offer us a complete suite of galactic environment that is perfect for studying the connection between stellar populations and galaxy evolution. In this paper, we present the star formation history of M31 using long period variable stars that are prime targets for studying the galaxy formation and evolution because of their evolutionary phase. In this method, at first, we convert the near-infrared K-band magnitude of evolved stars to mass and age and from this we reconstruct the star formation and evolution of the galaxy.

Keywords

stars: AGB and post-AGBstars: luminosity functionmass functiongalaxies: evolutiongalaxies: formationgalaxies: individual: M31galaxies: stellar contentgalaxies: structure
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium S343: Why Galaxies Care About AGB Stars: A Continuing Challenge through Cosmic Time , August 2018 , pp. 512 - 513
Copyright
© International Astronomical Union 2019 

References

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