Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21541903g&link_type=abstract
American Astronomical Society, AAS Meeting #215, #419.03; Bulletin of the American Astronomical Society, Vol. 42, p.276
Astronomy and Astrophysics
Astronomy
Scientific paper
CI Cam = XTE J04210+560 is an X-ray transient consisting of a supergiant B[e] star and a compact (black hole or neutron star) companion. In 1998 it underwent a 2 Crab x-ray outburst along with a 1 Jy radio outburst. Even in quiescence, it remains relatively bright at 10**-12 erg/cm**2/sec (2-10 keV). The X-ray spectrum bears strong similarities to those of obscured AGN in that it is heavily absoprbed and shows a strong Fe-Kalpha line (reaching 1keV equivalent width!). Unlike AGN, a dusty torus around CI Cam can be spatially resolved with IR interferometry, and comparison of this to the radio maps sheds light on the dynamics of the outburst. We report on XMM-Newton observations during quiescence which allow Fe-Kalpha reverberation mapping and an analysis of the quiescent spectrum.
Bartlett Elizabeth
Garcia Michael R.
Parmar Arvind
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