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Rxte observations of lmc x-1 and lmc x-3
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Nowak, M. A. Dove, J. B. Staubert, R. Begelman, M. C. Heindl, W. A. Wilms, J. Pottschmidt, K. |
| Copyright Year | 1999 |
| Description | Of all known persistent stellar-mass black hole candidates, only LMC X-1 and LMC X-3 consistently show spectra that are dominated by a soft, thermal component. We present results from long (170 ksec) Rossi X-ray Timing Explorer (RXTE) observations of LMC X-1 and LMC X-3 made in 1996 December. The spectra can be described by a multicolor disk blackbody plus an additional high-energy power-law. Even though the spectra are very soft (Gamma approximately 2.5), RXTE detected a significant signal from LMC X-3 up to energies of 50 keV, the hardest energy at which the object was ever detected. Focusing on LMC X-3 , we present results from the first year of an ongoing monitoring campaign with RXTE which started in 1997 January. We show that the appearance of the object changes considerably over its approximately 200 d long cycle. This variability can either be explained by periodic changes in the mass transfer rate or by a precessing accretion disk analogous to Her X-1. |
| File Size | 473631 |
| Page Count | 8 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19990021527 |
| Archival Resource Key | ark:/13960/t8dg1pg1z |
| Language | English |
| Publisher Date | 1999-01-26 |
| Access Restriction | Open |
| Subject Keyword | Astronomy Magellanic Clouds Black Body Radiation Proportional Counters X Ray Spectra X Ray Timing Explorer X Ray Astronomy Black Holes Astronomy Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
