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arxiv: 1104.4898 · v1 · pith:7FIDCOXKnew · submitted 2011-04-26 · 🌌 astro-ph.HE

Recent Spin Rate Measurements of 4U 1907+09

S. Sahiner (1) , S.C. Inam (2) , A. Baykal (1) ((1) METU , (2) Baskent University) This is my paper
classification 🌌 astro-ph.HE
keywords ratemeasurementsspectralspinspin-downx-rayanalysisbinary
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In this study, X-ray spectral and pulse timing analysis of the high mass X-ray binary (HMXB) pulsar 4U 1907+09, based on the observations with RXTE are presented. Spin rate measurements indicate a new spin-down episode with a rate close to the previous steady spin-down rate. Orbital phase resolved spectroscopy reveals that the Hydrogen column density varies through the orbit reaching to its maximum value just after periastron. A slight spectral softening with increasing luminosity is also observed.

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