A LARGE GROUP OF ASYMPTOTIC GIANT BRANCH STARS IN THE DISK OF M31: A MISSING PIECE OF THE PUZZLE?

We examine the properties of a stellar grouping that is ~3.5 kpc to the northeast of the center of M31. This structure has (1) a surface brightness that is lower than the surrounding disk, (2) a more-or-less round appearance, (3) a size of ~300 arcsec (~ 1 kpc), and (4) an integrated brightness K =...

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Veröffentlicht in:	Astrophysical journal. Letters 2012-04, Vol.749 (1), p.1-5, Article L7
1. Verfasser:	Davidge, T J
Format:	Artikel
Sprache:	eng
Schlagworte:	ASTRONOMY ASTROPHYSICS ASTROPHYSICS, COSMOLOGY AND ASTRONOMY Asymptotic giant branch stars ASYMPTOTIC SOLUTIONS BRIGHTNESS COMPARATIVE EVALUATIONS Disks Fossils GALAXIES GIANT STARS INDEXES LUMINOSITY Mathematical models STAR EVOLUTION Stars Surface brightness VISIBLE RADIATION
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