The first broadband study of a NS transient in quiescence with XMM and NuSTAR
Abstract
In quiescence, the soft X-ray spectra of neutron star (NS) Low-Mass X-ray Binary (LMXB) transients most often contain two components: one is due to thermal emission from the NS surface and is reasonably well-understood, while the other is a hard (often very hard) power-law of unknown origin. The upcoming NuSTAR mission will provide the first measurement of the >10 keV spectrum of quiescent NS LMXBs, which, along with XMM-Newton observations, will allow us to discriminate between accretion and pulsar rotation as the energy source for the power-law component. We propose coordinated XMM-Newton/NuSTAR observations of the closest and brightest quiescent system, Cen X-4.
- Publication:
-
XMM-Newton Proposal
- Pub Date:
- October 2011
- Bibcode:
- 2011xmm..prop...96T
- Keywords:
-
- White Dwarf Binaries;
- Neutron Star Binaries;
- Cataclysmic Variables;
- ULXs;
- Black Holes;
- Cen X-4