Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998pasp..110.1032m&link_type=abstract
The Publications of the Astronomical Society of the Pacific, Volume 110, Issue 751, pp. 1032-1039.
Astronomy and Astrophysics
Astronomy
5
Stars: Novae, Cataclysmic Variables, Stars: Individual: Constellation Name: Br Lupi
Scientific paper
We have found cyclic light variations with high amplitude during quiescence possibly reflecting the binary motion of the cataclysmic variable BR Lupi. With this hypothesis, an orbital frequency of 12.573 (1.91 hr) +/- 0.071 cycles day^-1 is derived. In addition, differential photometry obtained during the 1995 March superoutburst shows superhumps with amplitude 0.25 mag and frequency 12.171 (1.97 hr)+/-0.106 cycles day^-1. Hα emission line radial velocities measured during the decline of the superoutburst follow the orbital motion with half-amplitude 54+/-16 km s^-1. The mass function along with several empirical and theoretical constraints enabled us to estimate the primary mass M_1=1.0(1) M_solar, the secondary mass M_2=0.146(1) M_solar, and the inclination angle (50^deg
Mennickent Ronald E.
Sterken Christiaan
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