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Spectral and timing characterization of the X-ray source 1RXS J194211.9+255552
- Source :
- MNRAS, 451, 2835 (2015)
- Publication Year :
- 2016
-
Abstract
- We report on the first spectral and timing characterization of the transient X-ray source 1RXS J194211.9+255552 using all available data from the Swift X-ray satellite. We used 10 years of hard X-ray data from the Burst Alert Telescope (BAT) to characterize its long-term behaviour and to search for long periodicities, finding evidence for a periodic modulation at 166.5 $\pm$ 0.5 d, that we interpret as the orbital period of the source. The folded light curve reveals that the X-ray emission is mostly concentrated in a restricted phase-interval and we propose to associate 1RXS J194211.9+255552 to the class of the Be X-ray binaries. This is also supported by the results of the spectral analysis, where we used the BAT data and three pointed Swift/XRT observations to characterize the X-ray broad-band spectral shape. We found mild spectral variability in soft X-rays that can be accounted for by a varying local neutral absorber, while the intrinsic emission is consistent with a hard power law multiplied by a high-energy exponential cut-off as typically observed in this class of systems.<br />Comment: 5 pages, 7 figures. Published in MNRAS
- Subjects :
- Astrophysics - High Energy Astrophysical Phenomena
Subjects
Details
- Database :
- arXiv
- Journal :
- MNRAS, 451, 2835 (2015)
- Publication Type :
- Report
- Accession number :
- edsarx.1601.03246
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1093/mnras/stv1118