A Study of the X-Ray Dust Scattering Halo of Cyg X-1 with a Cross-Correlation Method

• Published in: The Astrophysical journal Vol. 690; no. 1; pp. 224 - 230
• Main Authors: Ling, Zhixing, Zhang, Shuang Nan, Xiang, Jingen, Tang, Shichao
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01.01.2009; IOP
• Subjects: Astronomy; Earth, ocean, space; Exact sciences and technology; Cross correlations; X-ray scattering; dust, extinction; X-rays: binaries; scattering; X-ray binary stars; Binary X ray source; Cosmic x-ray sources; Correlation methods; X-rays: ISM

X-ray photons scattered by the interstellar medium carry information about dust distribution, dust grain model, scattering cross section, and the distance of the source; they also take a longer time than unscattered photons to reach the observer. Using a cross-correlation method, we study the light...