Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998a%26as..127..581r&link_type=abstract
Astronomy and Astrophysics Supplement, v.127, p.581-586
Astronomy and Astrophysics
Astrophysics
18
Binaries: Eclipsing, Cataclysmic Variables, Accretion
Scientific paper
A light curve modelling and fitting program is presented for cataclysmic variable stars and related objects. It allows modelling of a three-dimensional disk in conjunction with the Roche-lobe filling secondary star, thus rendering it a very general tool for light curve analysis. Optimization of the solution is based on the maximum-entropy algorithm. Some bench-mark tests are presented, and the general applicability of the program is explored. The program is used here to study the problem of reconstructing the brightness distribution on flaring accretion disks from eclipse light curves, and the results are compared with those obtained using the well-established standard technique of flat-disk eclipse mapping. A previous study suggested that erroneous radial temperature profiles were obtained with flat-disk eclipse mapping. It is shown here that flat-disk eclipse mapping does reproduce the radial brightness structure of flared accretion disks very well, provided that the inner disk is not obscured by the outer rim of the disk.
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