Recent Spin Rate Measurements of 4U 1907+09

Sahiner, S.
Baykal, Altan
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 aslo observed.
Citation Formats
S. Sahiner, S. Ç. İNAM, and A. Baykal, “Recent Spin Rate Measurements of 4U 1907+09,” 2010, vol. 1379, Accessed: 00, 2020. [Online]. Available: