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Article
Report number	astro-ph/0405402
Title	Variable stars towards the bulge of M31: the AGAPE catalogue
Author(s)	Ansari, R. (Orsay, LAL) ; Auriere, M. (Midi-Pyrenees Observ., Tarbes) ; Baillon, P. (CERN) ; Bouquet, A. (College de France) ; Coupinot, G. (Midi-Pyrenees Observ., Tarbes) ; Coutures, Ch. (DAPNIA, Saclay) ; Ghesquiere, C. (College de France) ; Giraud-Heraud, Y. (College de France) ; Gillieron, D. (Midi-Pyrenees Observ., Tarbes) ; Gondolo, P. (Utah U.) ; Hecquet, J. (Midi-Pyrenees Observ.) ; Kaplan, J. (College de France) ; Kim, A. (LBL, Berkeley ; College de France) ; Le Du, Y. (College de France) ; Melchior, A.L. (Paris Observ. ; LERMA, Ivry) ; Moniez, M. (Orsay, LAL) ; Picat, J.P. (Midi-Pyrenees Observ.) ; Soucail, G. (Midi-Pyrenees Observ.)
Publication	2004
Imprint	2004
Number of pages	mult.
In:	Astron. Astrophys. 421 (2004) 509-518
DOI	10.1051/0004-6361:20035659
Subject category	Astrophysics and Astronomy
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.

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