Asymptotic Giant Branch Variables in the Galaxy and the Local Group

Details Asymptotic Giant Branch Variables in the Galaxy and the Local Group Asymptotic Giant Branch Variables in the Galaxy and the Local Group

2012-01-14

arxiv.org/abs/1201.2997v1

Astronomy and Astrophysics

Astrophysics

Galaxy Astrophysics

Accepted for publication in Astrophysics and Space Science. From a presentation at the conference "The Fundamental Cosmic Dist

Scientific paper

AGB variables, particularly the large amplitude Mira type, are a vital step on the distance scale ladder. They will prove particularly important in the era of space telescopes and extremely large ground-based telescopes with adaptive optics, which will be optimized for infrared observing. Our current understanding of the distances to these stars is reviewed with particular emphasis on improvements that came from Hipparcos as well as on recent work on Local Group galaxies. In addition to providing the essential calibration for extragalactic distances Gaia may also provide unprecedented insight into the poorly understood mass-loss process itself.

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