XMM-Newton and INTEGRAL spectroscopy of GRO J1655-40 during its 2005 outburst

Details XMM-Newton and INTEGRAL spectroscopy of GRO J1655-40 during its 2005 outburst XMM-Newton and INTEGRAL spectroscopy of GRO J1655-40 during its 2005 outburst

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aipc..924..877d&link_type=abstract

THE MULTICOLORED LANDSCAPE OF COMPACT OBJECTS AND THEIR EXPLOSIVE ORIGINS. AIP Conference Proceedings, Volume 924, pp. 877-880

Computer Science

2

X-Ray Binaries, X- And Gamma-Ray Telescopes And Instrumentation, X-Ray

Scientific paper

We report on two XMM-Newton and simultaneous INTEGRAL observations of the microquasar GRO J1655-40 during its 2005 outburst. The source was in its high-soft state during both observations. There is evidence for the presence of both a relativistically broadened Fe line providing strong support for the existence of a spinning black hole, and a highly photo-ionized absorber. The photo-ionized absorber is responsible for strong K absorption lines of Fe XXV and Fe XXVI in the EPIC pn spectra. The parameters of the highly-ionized absorber were different during the two observations. A less ionized absorber is present in the second observation, where the 0.5-200 keV luminosity of GRO J1655-40 decreased by around a half.

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