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Browsing by Author "Young, Andrew J."
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High-density Reflection Spectroscopy of Black Hole X-Ray Binaries in the Hard State
Liu, Honghui; Jiang, Jiachen; Zhang, Zuobin; Bambi, Cosimo; Fabian, Andrew C.; Alonso-García, Javier; Ingram, Adam; Kara, Erin; Steiner, James F.; Tomsick, John A.; Walton, Dominic J.; Young, Andrew J. (2023-07-12)We present a high-density relativistic reflection analysis of 21 spectra of six black hole X-ray binaries in the hard state with data from NuSTAR and Swift. We find that 76% of the observations in our sample require a disk ... -
The Ultra-Fast Outflow of the Quasar PG 1211+143 as Viewed by Time-Averaged Chandra Grating Spectroscopy
Danehkar, Ashkbiz; Nowak, Michael A.; Lee, Julia C.; Kriss, Gerard A.; Young, Andrew J.; Hardcastle, Martin J.; Chakravorty, Susmita; Fang, Taotao; Neilsen, Joseph; Rahoui, Farid; Smith, Randall K. (2018-02-02)We present a detailed X-ray spectral study of the quasar PG 1211+143 based on Chandra High Energy Transmission Grating Spectrometer (HETGS) observations collected in a multi-wavelength campaign with UV data using the Hubble ...