Séminaire/Seminar Galaxies |
| « Local dwarf galaxies: stellar populations and star formation history » |
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Lidia Makarova |
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The Nearby Universe within 10-12 Mpc is a unique laboratory for the structure and galaxy evolution study, since most galaxies in this volume of space are well
resolved to individual stars. Over the past few decades, the list of known galaxies in the Local Volume has continued to grow rapidly. And the vast majority of these objects are dwarf galaxies. Several large and successful observational programs on imaging of the nearby dwarf galaxies were performed at the HST using the ACS and WFPC2 cameras. Bright stellar populations are resolved in detail in the studied galaxies. The obtained data allow us to calculate the quantitative history of star formation of nearby dwarfs using theoretical stellar isochrones and modeling the resolved stellar populations. We studied a sample of several dwarf spheroidal/dwarf transitional galaxies within the Local group of galaxies and in the nearby field. We present some guesses about ossible evolution scenarios of these objects. |
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jeudi 21 septembre 2023 - 11:30 Salle des séminaires Évry Schatzman Institut d'Astrophysique de Paris |
| Page web du séminaire / Seminar's webpage |