Variable stars towards the bulge of M31: the AGAPE catalogue
- Ansari, R.
- Auriere, M.
- Baillon, P.
- Bouquet, A.
- Coupinot, G.
- Coutures, Ch.
- Ghesquiere, C.
- Giraud-Heraud, Y.
- Gillieron, D.
- Gondolo, P.
- Hecquet, J.
- Kaplan, J.
- Kim, A.
- Du, Y. Le
- Melchior, A.L.
- Moniez, M.
- Picat, J.P.
- Soucail, G.
DOIAbstract
11 pages, LatexWe 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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