Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004newar..48..731r&link_type=abstract
New Astronomy Reviews, Volume 48, Issue 9, p. 731-739.
Astronomy and Astrophysics
Astronomy
5
Binaries: Eclipsing, Stars: Distances, Stars: Fundamental Parameters, Magellanic Clouds, Galaxies: M31
Scientific paper
Extragalactic eclipsing binaries open a new perspective on the study of stellar structure and evolution. Stars in different galaxies have formed and evolved in environments with chemical histories that may differ from those of the solar neighborhood. For example, the LMC and SMC contain low-metallicity, young massive stars that are no longer found in our Galaxy. Eclipsing binaries, yielding accurate determinations of masses, radii and temperatures, allow for critical tests of, e.g., convective overshooting, mass loss, and internal structure. In addition, they provide an empirical calibration of the mass-luminosity relationship. In this paper, I present some results from ongoing programs on the determination of physical properties and distances to eclipsing binaries in the LMC, the SMC, and M31. In particular, I focus on aspects relevant to stellar astrophysics, and on the contributions of these eclipsing binaries to our understanding of the structure and chemical evolution of the host galaxies.
Present address: Institut de Ciencies de l'Espai (IEEC-CSIC), Edif. Nexus C/ Gran Capita, 08034 Barcelona, Spain.
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