Variable stars towards the bulge of M31: the AGAPE catalogue

Details Variable stars towards the bulge of M31: the AGAPE catalogue Variable stars towards the bulge of M31: the AGAPE catalogue

2004-05-20

arxiv.org/abs/astro-ph/0405402v1

Astron.Astrophys. 421 (2004) 509-518

Astronomy and Astrophysics

Astrophysics

11 pages, Latex, accepted for publication in A&A

Scientific paper

10.1051/0004-6361:20035659

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.

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