Abstract Details
| Name: Gaurava Kumar Jaisawal Affiliation: Physical Research Laboratory, Ahmedabad Conference ID: ASI2015_525 Title : Timing and spectral studies of the high mass X-ray binary 4U 1700-37 with Suzaku Authors and Co-Authors : Authors: Gaurava K. Jaisawal & Sachindra Naik Affiliation: Physical Research Laboratory, Navrangapura, Ahmedabad Abstract Type : Poster Abstract Category : Stars, The Milky Way Galaxy and its neighbours Abstract : We present results obtained from the timing and broad-band spectral studies of the high mass X-ray binary 4U 1700-37 using data obtained from a Suzaku observation. The source was observed on 2006 September 13-14 during out-of-eclipse orbital phase of the binary. The light curves in soft and hard energy ranges showed significant variation in X-ray intensity during the Suzaku observation. We did not find any signature of X-ray pulsations in the soft and hard X-ray light curves of the source. However, a quasi-periodic oscillation (QPO) feature at ~20 mHz was detected in the power density spectrum of the source. 1-70 keV time averaged source spectrum was found to be well described by a partially covering high energy cutoff power-law model and Negative and Positive power-law with Exponential cutoff (NPEX) model. The iron emission lines at 6.4 keV and 7.1 keV were detected in the spectrum. An absorption like feature was seen in the spectral residue when the time averaged spectrum was fitted with the NPEX continuum model. Interpreting the feature as cyclotron absorption line, corresponding magnetic was estimated to be ~3.4x10^12 Gauss. |