XMM-Newton Observations of V404 Cygni in Quiescence

Details XMM-Newton Observations of V404 Cygni in Quiescence XMM-Newton Observations of V404 Cygni in Quiescence

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006head....9.0172b&link_type=abstract

American Astronomical Society, HEAD meeting #9, #1.72; Bulletin of the American Astronomical Society, Vol. 38, p.340

Astronomy and Astrophysics

Astronomy

Scientific paper

We present a new 40ks XMM observation of the black hole X-ray nova V404 Cyg in quiescence. Its quiescent spectra can be best fitted by a power-law with slope Gamma 2 as found previously. V404 Cyg was roughly equal in luminosity compared to the previous observation of Chandra with variability of a factor of 4 during the observation. We find no evidence for the presence of iron fluorescent emission, nor emission from more highly ionized states and discuss constraints this presents upon the accretion flow geometry. This research was supported by the XMM-Newton Guest Observer Program.

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