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Title: Revisiting SW J2000.6+3210: a persistent Be X-ray pulsar?
Authors: Pradhan, Pragati
Maitra, Chandreyee
Paul, Biswajit
Paul, B.C.
Keywords: X-ray binaries
Issue Date: 1-Dec-2013
Publisher: Oxford University Press
Citation: Monthly Notices of the Royal Astronomical Society, 2013, Vol. 436, p945-952
Abstract: We present a detailed timing and spectral analysis of the Be X-ray binary SW J2000.6+3210 discovered by the Burst Alert Telescope Galactic plane survey. Two Suzaku observations of the source made at six months interval, reveal pulsations at ∼890 s for both observations with a much weaker pulse fraction in the second one. Pulsations are clearly seen in the energy band of 0.3–10 keV of X-ray Imaging Spectrometer for both observations and at high energies up to 40 keV for the second observation. The broad-band X-ray spectrum is consistent with a power-law and high-energy cut-off model along with a hot blackbody component. No change in spectral parameters is detected between the observations. We have also analysed several short observations of the source with Swift/XRT and detected only a few per cent variation in flux around a mean value of 3.5 × 10−11 erg cm−2 s−1. The results indicate that SW J2000.6+3210 is a member of persistent Be X-ray binaries which have the same broad characteristics as this source.
Description: Restricted Access. An open-access version is available at (one of the alternative locations)
ISSN: 0035-8711
1365-2966 - (online)
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Copyright: 2013 The authors & the Royal Astronomical Society.
Appears in Collections:Research Papers (A&A)

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