SIMBAD references

2004MNRAS.347.1173F - Mon. Not. R. Astron. Soc., 347, 1173-1179 (2004/February-1)

ULTRACAM photometry of the eclipsing cataclysmic variable OU Vir.

FELINE W.J., DHILLON V.S., MARSH T.R., STEVENSON M.J., WATSON C.A. and BRINKWORTH C.S.

Abstract (from CDS):

We present high-speed, three-colour photometry of the faint eclipsing cataclysmic variable OU Vir. For the first time in OU Vir, separate eclipses of the white dwarf and the bright spot have been observed. We use timings of these eclipses to derive a purely photometric model of the system, obtaining a mass ratio of q = 0.175±0.025, an inclination of i = 79.2 deg ± 0.7 deg and a disc radius of Rd/a = 0.2315±0.0150. We separate the white dwarf eclipse from the light curve and, by fitting a blackbody spectrum to its flux in each passband, obtain a white dwarf temperature of T = 13900±600 K and a distance of D = 51±17 pc. Assuming that the primary obeys the Nauenberg mass-radius relation for white dwarfs and allowing for temperature effects, we also find a primary mass Mw/M= 0.89±0.20, a primary radius Rw/R= 0.0097±0.0031 and an orbital separation a/R = 0.74±0.05.

Abstract Copyright: 2004 RAS

Journal keyword(s): binaries: close - binaries: eclipsing - stars: dwarf novae - stars: individual: OU Vir - novae, cataclysmic variables

Errata: erratum vol. 354, p. 1279 (2004)

Simbad objects: 6

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