Computer Science
Scientific paper
Aug 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aipc..924..889g&link_type=abstract
THE MULTICOLORED LANDSCAPE OF COMPACT OBJECTS AND THEIR EXPLOSIVE ORIGINS. AIP Conference Proceedings, Volume 924, pp. 889-892
Computer Science
X-Ray Binaries, Ground-Based Ultraviolet, Optical And Infrared Telescopes, Luminosities, Magnitudes, Effective Temperatures, Colors, And Spectral Classification
Scientific paper
A new generation instrument performing photon-counting at submillisecond timescales in the optical domain is under study for extremely large collecting area telescopes (such as OWL). In this paper we report results from a preliminary theoretical investigation on the possibility of detecting high frequency (kHz) variability of X-ray binaries in the optical band with such an instrument. We calculated the visual magnitude that a source should have in order for a high frequency QPO to be observable in the optical band with a very large collecting area telescope (100 m diameter). The model computes the optical-through-X-ray spectrum emitted by the accretion disk and the donor star, taking irradiation into account. The most promising sources for the detection of rapid variability in the optical band turn out to be Black Hole Soft X-ray Transients.
Barbieri Cesare
Germana Claudio
Zampieri Luca
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