Astronomy and Astrophysics – Astrophysics
Scientific paper
2002-10-09
Astron.Astrophys.396:633-640,2002
Astronomy and Astrophysics
Astrophysics
8 pages (including figures), 7 figures. To Be published in A&A
Scientific paper
10.1051/0004-6361:20021446
We present multi-color photometry and time resolved spectroscopy of OU Vir. The analysis of the quiescent light curve shows that OU Vir is characterized by i) strong cycle-to-cycle brightness variations, and ii) hot spot modulated light curve with grazing eclipse of the impact region. Colors are derived both in- and out- of eclipse. The time-resolved spectroscopy allows us to produce the radial velocity curve from the H$\alpha$ accretion disk emission line which possibly reveals only weak evidence for hot spot line emission. The hot spot is believed to be a turbulent optically thick region, producing mostly continuum emission.
Harrison Thomas E.
Hoard Donald Wayne
Holtzman Jon A.
Howell Steve B.
Mason E. E.
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