학술논문

Variable stars towards the bulge of M31: the AGAPE catalogue
Document Type
Working Paper
Source
Astron.Astrophys. 421 (2004) 509-518
Subject
Astrophysics
Language
Abstract
We present the AGAPE astrometric and photometric catalogue of 1579 variable stars in a 14'x10' field centred on M31. This work is the first survey devoted to variable stars in the bulge of M31. The R magnitudes of the objects and the B-R colours suggest that our sample is dominated by red long-period variable stars (LPV), with a possible overlap with Cepheid-like type II stars. Twelve nova candidates are identified. Correlations with other catalogues suggest that 2 novae could be recurrent novae and provide possible optical counterparts for 2 supersoft X-ray sources candidates observed with Chandra.
Comment: 11 pages, Latex, accepted for publication in A&A