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Semaine de l'Astrophysique Française - Journées de la SF2A 2008, Paris : France (2008)
X-ray bursts from the Galactic Center: the case of SLX 1737-282 and GRS 1741.9-2853
G. Trap1, 2, M. Falanga2, A. Goldwurm1, 2, R. Terrier1

The center of our galaxy harbors a whole population of neutron stars in low mass X-ray binaries. Most of these systems are characterized by regular fast rises followed by exponential decays of their X-ray luminosities, on timescales ranging from seconds to hours. These "X-ray bursts" are now firmly believed to result from unstable thermonuclear burning of accreted material onto the surface of the neutron stars. In early 2007, while surveying the Galactic Center, the INTEGRAL satellite recorded a new long burst from the faint ultra-compact binary candidate SLX 1737-282 as well as several short ones from the faint transient source GRS 1741.9-2853. We take these recent detections as an opportunity to briefly discuss our current observational and phenomenological understanding of these phenomena, with a particular emphasis on low accretion rate bursters.
1 :  APC - UMR 7164 - AstroParticule et Cosmologie
2 :  SAp - Service d'Astrophysique
Physique/Astrophysique/Cosmologie et astrophysique extra-galactique

Planète et Univers/Astrophysique/Cosmologie et astrophysique extra-galactique

Planète et Univers/Astrophysique