Variability of accreting sources at very high time resolution

Details Variability of accreting sources at very high time resolution Variability of accreting sources at very high time resolution

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004ragt.meet...25b&link_type=abstract

In Proceedings of RAGtime 4/5 Workshops on black holes and neutron stars, 14-16/13-15 October 2002/2003, Eds: S. Hledík and Z. S

Computer Science

1

Scientific paper

We are carrying out a project to study rapid variability of radiation originating from accreting compact objects. Our goal is to examine fluctuations of the radiation flux occurring on the light-crossing time scales, taking into account effects of strong gravitational field. The assumption of a geometrically thin, optically thick disc has been often imposed in previous works, but here it is relaxed. Instead, we construct a toy model of an oscillating torus in the slender approximation, we assume thermal bremsstrahlung for the intrinsic emissivity of the medium, and we compute observed (predicted) radiation signal including the contribution of indirect higher-order images and caustics.

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