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Study of the cyclotron feature in MXB 0656-072 | | V.A. McBride
; J. Wilms
; M.J. Coe
; I. Kreykenbohm
; R.E. Rothschild
; W. Coburn
; J.L. Galache
; P. Kretschmar
; W.R.T. Edge
; R. Staubert
; | | Date: |
6 Feb 2006 | | 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. | | Source: | arXiv, astro-ph/0602113 | | Services: | Forum | Review | PDF | Favorites | |
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