Search for a thermal emission component in low luminosity Be binary pulsars

Details Search for a thermal emission component in low luminosity Be binary pulsars Search for a thermal emission component in low luminosity Be binary pulsars

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007xmm..prop...21l&link_type=abstract

XMM-Newton Proposal ID #05505602

Other

White Dwarf Binaries, Neutron Star Binaries, Cataclysmic Variables, Ulxs, Black Holes, Rx J1037.5-5647, Rx J0440.9+4431, Xmm-Newton Proposal Id #05505602

Scientific paper

The spectrum of many X-ray binary pulsars show a data excess over the main power law component, which has been described with different models. In the case of the persistent, low-luminosity (about 10**34 erg/s) and long-period (above 100 s) Be pulsars X Persei and RX J0146.9+6121, the observed excess can be modeled with a rather hot (kT above 1 keV) black-body component of small area (R below 0.5 km), which has been attributed to the emission from the NS polar caps. We propose to test the validity of this picture also in the other two persistent Galactic Be pulsars RX J0440.9+4431 and RX J1037.5-5647. Moreover, we also propose to observe the transient long-period Be pulsar 3A 0535+262 when in quiescence, since in this status its luminosity is comparable to that of the two previous sources.

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