Light-Curve Diagnosis of a Hot Spot for Accretion-Disk Models

Details Light-Curve Diagnosis of a Hot Spot for Accretion-Disk Models Light-Curve Diagnosis of a Hot Spot for Accretion-Disk Models

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003pasj...55.1121f&link_type=abstract

Publications of the Astronomical Society of Japan, Vol.55, No.6, pp. 1121-1125

Physics

5

Accretion, Accretion Disks, Black Hole Physics, Galaxies: Active, Galaxy: Center, X-Rays: Stars

Scientific paper

Light curves of a hot spot rotating in a relativistic Keplerian disk were found to be periodic with typically two peaks, originating from a gravitational focusing effect and a Doppler boost. On the other hand, we found that light curves of a hot spot spirally infalling in a sub-Keplerian advective disk are aperiodic with typically a single peak, originating from a gravitational focusing effect or a Doppler boost. Such a difference in the light curves of a hot spot can discriminate background disk models.

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