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2007MNRAS.382.1105W - Mon. Not. R. Astron. Soc., 382, 1105-1118 (2007/December-2)
Roche tomography of cataclysmic variables - IV. Star-spots and slingshot prominences on BV Cen.
WATSON C.A., STEEGHS D., SHAHBAZ T. and DHILLON V.S.
Abstract (from CDS):
We also find evidence for a faint, narrow, transient emission line with characteristics reminiscent of the peculiar low-velocity emission features observed in some outbursting dwarf novae. We interpret this feature as a slingshot prominence from the secondary star and derive a maximum source size of 75000 km and a minimum altitude of 160000 km above the orbital plane for the prominence.
The entropy landscape technique was applied to determine the system parameters of BV Cen. We find M1= 1.18 ±0.280.16M☉ and M2= 1.05 ±0.230.14M☉ and an orbital inclination of i = 53°±4° at an optimal systemic velocity of γ = -22.3 km/s. Finally, we also report on the previously unknown binarity of the G5IV star HD 220492.
Abstract Copyright: 2007 The Authors. Journal compilation © 2007 RAS
Journal keyword(s): techniques: spectroscopic - stars: imaging - stars: individual: BV Cen - stars: late-type - novae, cataclysmic variables - stars: spots
CDS comments: Comparison stars are not in Simbad.
Simbad objects: 20
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