Determining the Distance of Cyg X-3 with its X-Ray Dust Scattering Halo

• Published in: The Astrophysical journal Vol. 695; no. 2; pp. 1111 - 1120
• Main Authors: Ling, Zhixing, Zhang, Shuang Nan, Tang, Shichao
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 20.04.2009; IOP
• Subjects: Astronomy; Earth, ocean, space; Exact sciences and technology; X-ray scattering; extinction; X-rays: binaries; scattering; X-ray binary stars; Binary X ray source; Cosmic x-ray sources; X-rays: ISM; dust

Using a cross-correlation method, we study the X-ray halo of Cyg X-3. Two components of dust distributions are needed to explain the time lags derived by the cross-correlation method. Assuming the distance as 1.7 kpc for Cyg OB2 association (a richest OB association in the local Galaxy) and another...