A Chandra HETG Analysis Of The X-ray Line Features Of Cygnus X-3

Details A Chandra HETG Analysis Of The X-ray Line Features Of Cygnus X-3 A Chandra HETG Analysis Of The X-ray Line Features Of Cygnus X-3

Sep 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011head...12.1316s&link_type=abstract

American Astronomical Society, HEAD meeting #12, #13.16

Astronomy and Astrophysics

Astronomy

Scientific paper

Cygnus X-3 is an enigmatic system with a compact object, possibly a black hole, in a tight 4.79 h orbit around a Wolf-Rayet companion. The X-ray spectrum is rich with features from H-like and He-like emission lines from photoionized heavy elements, some of them with P-Cygni profiles which indicate a strong wind from the mass donor. The photoionized nature of the emission is attested to by prominent Radiative Recombination Continua (RRCs) detected in the spectrum. We present an analysis and comparison of Chandra grating spectra from several different states of activity (quenched, major flare, transition, and quiescent states), also using concurrent RXTE data where available to establish the emission state and the continuum. Results from line profile fitting and photoionizational modeling are presented.

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