Multiwavelength Observations Of Swift J1753.5-0127

Froning, Cynthia S.
Maccarone, Thomas J.
France, Kevin
Winter, Lisa
Robinson, Edward L.
Hynes, Robert I.
Lewis, Fraser

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Publication date

January 2014

DOI

10.15781/T2R510

Journal

The Astrophysical Journal

Abstract

We present contemporaneous X-ray, ultraviolet (UV), optical, and near-infrared observations of the black hole binary system Swift J1753.5-0127 acquired in 2012 October. The UV observations, obtained with the Cosmic Origins Spectrograph on the Hubble Space Telescope, are the first UV spectra of this system. The dereddened UV spectrum is characterized by a smooth, blue continuum and broad emission lines of C IV and He II. The system was stable in the UV to <10% during our observations. We estimated the interstellar reddening by fitting the 2175 angstrom absorption feature and fit the interstellar absorption profile of Ly alpha to directly measure the neutral hydrogen column density along the line of sight. By comparing the UV continuum flux t...