The prototype of intermittent pulsators, HETE J1900.1-2455
Abstract
HETE J1900.1-2455 is a highly peculiar accreting millisecond pulsar, as its pulses disappeared soon after the discovery of the source. Therefore, it can be viewed as a prototype of a system in between pulsating and non pulsating low mass X-ray binaries. We propose to observe it for the first time with XMM-Newton, to discriminate between models explaining the pulse disappearance. The proposed observation will firmly constrain the inner disc radius thanks to the modelling of the broad iron line that the source shows. Simultaneously, a pulse search at an unprecedented large sensitivity will be carried over. The results obtained will be used to shed light on the reason that causes the majority of low mass X-ray binaries hosting a neutron star not to show pulsations.
- Publication:
-
XMM-Newton Proposal
- Pub Date:
- October 2010
- Bibcode:
- 2010xmm..prop...76P
- Keywords:
-
- White Dwarf Binaries;
- Neutron Star Binaries;
- Cataclysmic Variables;
- ULXs;
- Black Holes;
- HETE J1900.1-24