Chandra High Resolution Spectroscopy of the Be X-Ray binary A0535+262

Details Chandra High Resolution Spectroscopy of the Be X-Ray binary A0535+262 Chandra High Resolution Spectroscopy of the Be X-Ray binary A0535+262

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008cxo..prop.2974r&link_type=abstract

Chandra proposal ID #10408332

Computer Science

Scientific paper

We propose to observe the Be X-ray pulsar binary 1A 0535+262 with Chandra HETGS for 20 ks. This observations will allow us to investigate: 1) High M_dot accretion onto a NS: These observations will allow us to probe accretion at a high fraction of the Eddington luminosity onto a neutron star with an accurately constrained B-field (4e12 -- Cyclotron lines) and spin period (X-ray pulsations). 2) Disk winds from accreting compact objects: Miller et al. (2008) have previously obtained HETGS spectra of the black hole transient GRO J1655-40; while Ueda et al. (2004) have obtained HETGS spectra of the Z-source GX13+1. In both cases numerous wind absorption lines are observed. 3) Relativistic accretion disk emission lines: Cackett et al. (2009) have observed relativistic Fe emission from a sample of accreting neutron star LMXBs (Z, Atoll, MSP) providing constraints on the radius of the neutron star. This will be the definitive Chandra observation of a Be X-ray binary.

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