The New Galactic Black Hole Candidate XTE J1650-500: X-ray, Optical, and Radio Results

Details The New Galactic Black Hole Candidate XTE J1650-500: X-ray, Optical, and Radio Results The New Galactic Black Hole Candidate XTE J1650-500: X-ray, Optical, and Radio Results

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...19915907m&link_type=abstract

American Astronomical Society, 199th AAS Meeting, #159.07; Bulletin of the American Astronomical Society, Vol. 34, p.569

Astronomy and Astrophysics

Astronomy

Scientific paper

We observed the new Galactic black hole candidate XTE J1650-500 during its outburst in the fall of 2001. We present the first results of our multi-wavelength campaign, with an emphasis on X-ray spectroscopy and rapid X-ray variability. High resolution X-ray spectra were obtained with Chandra and XMM-Newton, and frequent observations were made with RXTE. A variety of quasi-periodic oscillations are clearly detected in the initial ``very high'' state, but not in the subsequent ``high'' state. The dispersed spectra shows evidence for weak, ionized absorption features. We will discuss constraints on the accretion flow geometry in the context of measurements from established Galactic black holes, and prevailing models for accretion in such systems (e.g., ADAFs).

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