Using Chandra HETG And Swift XRT Spectra To Understand Cygnus X-3

Details Using Chandra HETG And Swift XRT Spectra To Understand Cygnus X-3 Using Chandra HETG And Swift XRT Spectra To Understand Cygnus X-3

May 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21822804s&link_type=abstract

American Astronomical Society, AAS Meeting #218, #228.04; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

The energy resolving power of Chandra HETG substantially exceeds that of Swift XRT, by a factor of 5 around 6 keV. In the case of the High-Mass X-ray Binary Cygnus X-3, prominent emission lines, P-Cygni profiles and Radiative Recombination Continua readily apparent in Chandra grating spectra blend together in XRT spectra, showing up as residuals to the continuum that resemble wide absorption and emission features. These occur most consistently in the range of 1.8-3.5 keV (3.5-6.9 Angstrom). We investigate the use of a model derived from non-simultaneous Chandra HETG observations to fit these residuals in the Swift XRT spectra.

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