Variable stars towards the bulge of M31: the AGAPE catalogue

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...

Descripción completa

Detalles Bibliográficos
Autores principales: 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., Le Du, Y., Melchior, A.L., Moniez, M., Picat, J.P., Soucail, G.
Lenguaje:eng
Publicado: 2004
Materias:
Astrophysics and Astronomy
Acceso en línea:https://dx.doi.org/10.1051/0004-6361:20035659
http://cds.cern.ch/record/736766
Descripción
Sumario: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.

Ejemplares similares