Monitoring the latest stages of a transient neutron star X-ray binary
Abstract
Neutron star transient low mass X-ray binaries (TLMXB) are among the brightest sources in the X-ray sky. Their outbursts are well known and studied. Despite this, their return to quiescence has been studied only in a handful of cases. This return is quite fast making even more difficult. Recently we monitor in high detail the return to quiescence of the archetypal TLMXB Aql X-1 thanks to XMM-Newton observations. We probed for the first time the cooling of the neutron star after a (short) outburst, finding a very short cooling time ( 3d). Thanks to an approved Swift XRT program for monitoring every day for 5 ks (for 30 d) the latest stages of a TLMXB, we are aiming assessing the spectral properties of a transient LMXB close to the quiescent level.
- Publication:
-
XMM-Newton Proposal
- Pub Date:
- October 2012
- Bibcode:
- 2012xmm..prop..134C
- Keywords:
-
- White Dwarf Binaries;
- Neutron Star Binaries;
- Cataclysmic Variables;
- ULXs;
- Black Holes;
- New transient L;
- Aql X-1;
- Cen X-4;
- SAX J1808.4-364;
- XTE J1709-26;
- 4U 1608-52;
- XTE J2123-058;
- SAX J1810.8-260;
- Terzan 5 transi;
- SAX J1750.8-290;
- XTE J1701-462;
- 2S 1803-245;
- 1M 1716-315;
- EXO 1747-214;
- IGR J00291+5934;
- 4U 2129+47;
- 4U 1730-22;
- IGR J17498-2921;
- MAXI J0556-332;
- MXB 0836-42;
- Swift J1756.9-2;
- Swift J1749.4-2