Study of the cyclotron feature in MXB 0656-072
arXiv:astro-ph/0602113 · doi:10.1051/0004-6361:20054239
Abstract
We have monitored a Type II outburst of the Be/X-ray binary MXB 0656-072 in a series of pointed RXTE observations during October through December 2003. The source spectrum shows a cyclotron resonance scattering feature at 32.8 +/- 0.5 keV, corresponding to a magnetic field strength of (3.67 +/- 0.06) x 10^12 G and is stable through the outburst and over the pulsar spin phase. The pulsar, with an average pulse period of 160.4 +/- 0.4 s, shows a spin-up of 0.45 s over the duration of the outburst. From optical data, the source distance is estimated to be 3.9 +/- 0.1 kpc and this is used to estimate the X-ray luminosity and a theoretical prediction of the pulsar spin-up during the outburst.
7 pages, 6 figures, accepted for publication in A&A
References in corpus (8)
- Observations of Accreting Pulsars
- In-flight Performance of the High Energy X-ray Timing Experiment on the Rossi X-ray Timing Explorer
- Gravitational Bending of Light Near Compact Objects
- The variable cyclotron line in GX 301-2
- Confirmation of Two Cyclotron Lines in Vela X-1
- The Frequency Stability of Millisecond Oscillations in Thermonuclear X-Ray Bursts
- Discovery of a Cyclotron Resonant Scattering Feature in the RXTE Spectrum of 4U 0352+309 (X Per)
- A Puzzling Paucity of Double Peaked X-ray Pulsars
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