267 citations · 441 across the 8 of their papers we have counts for
8 papers
Using the X-ray Dust Scattering Halo of Cygnus X-1 to determine distance and dust distributions
Jingen Xiang, Julia C. Lee, Michael A. Nowak +1
We present a detailed study of the X-ray dust scattering halo of the black hole candidate \cygx1 based on two \chandra\ HETGS observations. Using 18 different dust models, includin…
The Extreme Spin of the Black Hole in Cygnus X-1
Lijun Gou, Jeffrey E. McClintock, Mark J. Reid +7
The compact primary in the X-ray binary Cygnus X-1 was the first black hole to be established via dynamical observations. We have recently determined accurate values for its mass a…
Condensed Matter Astrophysics: A Prescription for Determining the Species-Specific Composition and Quantity of Interstellar Dust using X-rays
Julia C. Lee, Jingen Xiang, Bruce Ravel +2
We present a new technique for determining the *quantity and composition* of dust in astrophysical environments using <6keV X-rays. We argue that high resolution X-ray spectra as e…
The accretion disk corona and disk atmosphere of 4U 1624-490 as viewed by the Chandra-HETGS
Jingen Xiang, Julia C. Lee, Michael A. Nowak +2
We present a detailed spectral study (photoionization modelling and variability) of the "Big Dipper" 4U 1624-490 based on a \chandra-High Energy Transmission Gratings Spectrometer…
A Study of the X-Ray Dust Scattering Halo of Cyg X-1 with a Cross-Correlation Method
Zhixing Ling, Shuang Nan Zhang, Jingen Xiang +1
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…
Using the X-ray Dust Scattering Halo of 4U 1624-490 to determine distance and dust distributions
Jingen Xiang, Julia C. Lee, Michael A. Nowak
We present X-ray dust scattering halo results based on our 76 ks {\it Chandra} ACIS-S/HETGS observation of the LMXB dipping source 4U 1624-490. Through analysis of the halo light c…