Long-Term Hysteretic Behavior in Black-Hole Binaries: Galactic and Extragalactic Monitoring

Details Long-Term Hysteretic Behavior in Black-Hole Binaries: Galactic and Extragalactic Monitoring Long-Term Hysteretic Behavior in Black-Hole Binaries: Galactic and Extragalactic Monitoring

Nov 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002xrb..confe..39s&link_type=abstract

X-ray Binaries in the Chandra and XMM-Newton Era (with an emphasis on Targets of Opportunity), Abstracts of the conference held

Computer Science

Actively Accreting And Transient Binaries

Scientific paper

Regular, frequent monitoring of the persistent black hole candidates 1E 1740.7-2942 and GRS 1758-258 has yielded two discoveries about these systems: the complexity of the relationship between their luminosity and spectral shape (in contrast to Cyg X-1, in which brightness and softness correlate closely) and their orbital periods, manifested in weak x-ray modulations. In addition, recent observations of these sources and Cyg X-1 show that extreme but very rare variations can take place in these systems on the scale of hours. After reviewing these recent results, we will discuss the capabilities of Chandra, Newton, and future missions to deduce the properties of similar binaries in nearby galaxies via similar observations.

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