Astronomy and Astrophysics – Astrophysics
Scientific paper
2001-03-14
Mon.Not.Roy.Astron.Soc.338:7,2003
Astronomy and Astrophysics
Astrophysics
11 pages, 4 figures (2 in color). MNRAS, accepted. Significant updates from the initial version
Scientific paper
10.1046/j.1365-8711.2003.05941.x
On two occasions, we obtained nearly simultaneous ~ 4 kilosecond snapshot observations of the Galactic black hole and microquasar XTE J1550-564 with Chandra and RXTE near the peak of its May, 2000 outburst. The low-energy sensitivity of Chandra and the resolution of the High Energy Transmission Grating Spectrometer (HETGS), coupled with the broad energy range and large collecting area of RXTE, have allowed us to place constraints on the outburst accretion flow geometry of this source in the ``intermediate'' X-ray state. The 0.65-25.0 keV continuum spectra are well-described by relatively hot (kT ~ 0.8 keV) accretion disk and hard (Gamma ~ 2.3) coronal power-law components. Broad, relatively strong Fe K-alpha emission line (EW ~170 eV) and smeared absorption edge components consistent with Fe XXV are strongly required in joint spectral fits. The resolution of the Chandra/HETGS reveals that the broad Fe K-alpha emission lines seen clearly in the individual RXTE spectra are not due to an intrinsically narrow line.
Belloni Tomaso
Casares Jorge
Charles Phil A.
Di Matteo Tiziana
Fabian Andrea C.
No associations
LandOfFree
Chandra and RXTE Spectroscopy of the Galactic Microquasar XTE J1550-564 in Outburst does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Chandra and RXTE Spectroscopy of the Galactic Microquasar XTE J1550-564 in Outburst, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chandra and RXTE Spectroscopy of the Galactic Microquasar XTE J1550-564 in Outburst will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-175994