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Study of the cyclotron feature in MXB 0656-072
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McBride, V. A., Wilms, J. (Joern), Coe, M. J., Kreykenbohm, I., Rothschild, R. E., Coburn, W. (Wayne), Galache, J. L., Kretschmar, P., Edge, W. R. T. and Staubert, R. (2006) Study of the cyclotron feature in MXB 0656-072. Astronomy & Astrophysics, Vol.451 (No.1). pp. 267-272. doi:10.1051/0004-6361:20054239
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Official URL: http://dx.doi.org/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(-0.4)(+0.5) keV, corresponding to a magnetic field strength of 3.67(-0.04)(+ 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.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QB Astronomy | ||||
| Divisions: | Faculty of Science > Physics | ||||
| Journal or Publication Title: | Astronomy & Astrophysics | ||||
| Publisher: | EDP Sciences | ||||
| ISSN: | 0004-6361 | ||||
| Official Date: | May 2006 | ||||
| Dates: |
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| Volume: | Vol.451 | ||||
| Number: | No.1 | ||||
| Number of Pages: | 6 | ||||
| Page Range: | pp. 267-272 | ||||
| DOI: | 10.1051/0004-6361:20054239 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
| Funder: | National Research Foundation (South Africa) (NRF) , British Council, University of Southampton, Deutsche Forschungsanstalt für Luft- und Raumfahrt (DLR) | ||||
| Grant number: | 50 OG 9601 (DLR), 50 OG 0501 (DLR) |
Data sourced from Thomson Reuters' Web of Knowledge
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