X-ray Observations of INTEGRAL Discovered Cataclysmic Variable IGR J17195-4100
arXiv:1208.3425 · doi:10.1111/j.1365-2966.2012.21916.x
Abstract
We present analysis of archival X-ray data obtained with the XMM-Newton and Suzaku for a new Intermediate Polar identified as a counterpart of an INTEGRAL discovered gamma-ray source, IGR J17195-4100. We report a new period of 1053.7\pm12.2 s in X-rays. A new binary orbital period of 3.52+1.43-0.80 h is strongly indicated in the power spectrum of the time series. An ephemeris of the new period proposed as the spin period of the system has also been obtained. The various peaks detected in the power spectrum suggest a probable disc-less accretion system. The soft X-rays (<3 keV) dominate the variability seen in the X-ray light curves. The spin modulation shows energy dependence suggesting the possibility of a variable partial covering accretion column. The averaged spectral data obtained with XMM-Newton EPIC cameras show a multi temperature spectra with a soft excess. The latter can be attributed to the varying coverage of accretion curtains.
LaTeX 10 pages, 7 figures and 4 tables, accepted publication in MNRAS
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Cited by in corpus (5)
- Magnetic White Dwarfs
- PALOMA: A Magnetic CV between Polars and Intermediate Polars
- The Magnetospheric Boundary in Cataclysmic Variables
- Multiwavelength study of RX J2015.6+3711: a magnetic cataclysmic variable with a 2-hr spin period
- Significant reflection and absorption effects in the X-ray emission of the Intermediate Polar IGR J17195-4100