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Variable stars towards the bulge of M31: the AGAPE catalogue

Autor: 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.

Publikováno v: Astron.Astrophys. 421 (2004) 509-518

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 sugg

Externí odkaz: http://arxiv.org/abs/astro-ph/0405402

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AgapeZ1: a Large Amplification Microlensing Event or an Odd Variable Star Towards the Inner Bulge of M31

Autor: Ansari, R., Auriere, M., Baillon, P., Bouquet, A., Coupinot, G., Coutures, Ch., Ghesquiere, C., Giraud-Heraud, Y., Gondolo, P., Hecquet, J., Kaplan, J., Kim, A., Du, Y. Le, Melchior, A. L., Moniez, M., Picat, J. P., Soucail, G.

AgapeZ1 is the brightest and the shortest duration microlensing candidate event found in the Agape data. It occured only 42" from the center of M31. Our photometry shows that the half intensity duration of the event6 is 4.8 days and at maximum bright

Externí odkaz: http://arxiv.org/abs/astro-ph/9812334

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AGAPE: a Microlensing Search for Dark Matter by Monitoring Pixels

Autor: Gondolo, P., Ansari, R., Auriere, M., Baillon, P., Bouquet, A., Coupinot, G., Coutures, Ch., Ghesquiere, C., Giraud-Heraud, Y., Hecquet, J., Kaplan, J., Du, Y. Le, Melchior, A. L., Moniez, M., Picat, J. P., Soucail, G.

AGAPE is an observational search of massive compact halo objects (MACHOs) in the direction of M31 by means of a novel method: the gravitational microlensing of unresolved stars. The search consists in examining CCD pixel light curves for microlensing

Externí odkaz: http://arxiv.org/abs/astro-ph/9610010

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AGAPE: a search for dark matter towards M31 by microlensing effects on unresolved stars

Autor: Ansari, R., Aurière, M., Baillon, P., Bouquet, A., Coupinot, G., Coutures, Ch., Ghesquière, C., Giraud-Héraud, Y., Gondolo, P., Hecquet, J., Kaplan, J., Du, Y. Le, Melchior, A. L., Moniez, M., Picat, J. P., Soucail, G.

Publikováno v: Astron.Astrophys.324:843-856,1997

M31 is a very tempting target for a microlensing search of compact objects in galactic haloes. It is the nearest large galaxy, it probably has its own dark halo, and its tilted position with respect to the line of sight provides an unmistakable signa

Externí odkaz: http://arxiv.org/abs/astro-ph/9607040

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AGAPE, a microlensing search in the direction of M31: status Report

Autor: Ansari, R., Auriere, M., Baillon, P., Bouquet, A., Coupinot, G., Coutures, C., Ghesquiere, C., Giraud-Heraud, Y., Gondolo, P., Hecquet, J., Kaplan, J., Du, Y. Le, Melchior, A. L., Moniez, M., Picat, J. P., Soucail, G.

A status report of the microlensing search by the pixel method in the direction of M31, on the 2 meter telescope at Pic du Midi is given. Pixels are stable to a level better than 0.5%. Pixel variations as small as 0.02 magnitude can clearly be detect

Externí odkaz: http://arxiv.org/abs/astro-ph/9602015

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AGAPE, an experiment to detect MACHO's in the direction of the Andromeda galaxy

Autor: Ansari, R., Auriére, M., Baillon, P., Bouquet, A., Coupinot, G., Coutures, C., Ghesquière, C., Giraud-Héraud, Y., Gondolo, P., Hecquet, J., Kaplan, J., Melchior, A. L., Moniez, M., Picat, J. P., Soucail, G.

The status of the Agape experiment to detect Machos in the direction of the andromeda galaxy is presented.
Comment: 4 pages, 1 figure in a separate compressed, tarred, uuencoded uufile. In case ofproblem contact kaplan@lpthe.jussieu.fr

Externí odkaz: http://arxiv.org/abs/astro-ph/9502102

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