From evolved Long-Period-Variable stars to the evolution of M31

Atefeh Javadi; Elham Saremi; Jacco Th. van Loon; Mahdieh Navabi; Maryam Torki; Sepideh Ghaziasgar

From evolved Long-Period-Variable stars to the evolution of M31

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arxiv 2204.11530 v1 pith:RYBDDAXY submitted 2022-04-25 astro-ph.GA

Maryam Torki , Mahdieh Navabi , Atefeh Javadi , Elham Saremi , Jacco Th. van Loon , Sepideh Ghaziasgar This is my paper · ORCID

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keywords evolutionstarsevolvedformationgalaxieshistoryluminositymass

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One of the ways to understand the genesis and evolution of the universe is to know how galaxies have formed and evolved. In this regard, the study of star formation history (SFH) plays an important role in the accurate understanding of galaxies. In this paper, we used long-period variable stars (LPVs) to estimate the SFH in the Andromeda galaxy (M31). These cool stars reach their peak luminosity in the final stage of their evolution; their birth mass is directly related to their luminosity. Therefore, we construct the mass function and the star formation history using stellar evolution models.

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