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Title:
Systematics of Superhumps in the Short Supercycle SU UMa Dwarf Nova V1159 Ori
Authors:
Pitts, M. A.; Robertson, J. W.; Honeycutt, R. K.
Affiliation:
AA(Indiana Univ. and Ohio State Univ.), AB(Arkansas Tech Univ.), AC(Indiana University)
Publication:
American Astronomical Society, 201st AAS Meeting, #40.11; Bulletin of the American Astronomical Society, Vol. 34, p.1163
Publication Date:
12/2002
Origin:
AAS
Bibliographic Code:
2002AAS...201.4011P

Abstract

Lightcurves of the cataclysmic variable V1159 Orionis have been analyzied to study the outbursts, superoutbursts, and superhumps in this SU Uma-type dwarf nova. The data are merged from RoboScope observations over 7 years plus 3 years of CCD measures from amateur astronomers. The outbursts occur at an interval of ~4 days, with superoutbursts each 44.5 days. At times we find superhumps at all superoutburst phases, as well as a double-peaked structure within the star's ~0.06 day oscillations. These oscillations are often damped during the peaks of the normal outbursts, and a general strengthening occurs during superoutburst, peaking near the end of the superoutburst. This work was done as part of a summer REU program at Indiana University.
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