Photometry of some neglected bright cataclysmic variables and candidates
نویسندگان
چکیده
منابع مشابه
High speed photometry of faint Cataclysmic Variables : III . V 842
We present further results from a high speed photometric survey of faint cataclysmic variables. We find that V842 Cen (Nova Cen 1986 No. 2) is highly active, but with no evident orbital modulation. BY Cir (Nova Cir 1995) is an eclipsing system with an orbital period (Porb) of 6.76 h. TV Crv, an SU UMa type dwarf nova, is found to have Porb = 1.509 h from photometry at quiescence. DD Cir (Nova C...
متن کاملSpectroscopic Observations of Twenty - one Faint Cataclysmic Variables Candidates ⋆
We provide the first minimum light spectroscopic observations for 21 previously known or suspected faint cataclysmic variable candidates. The sources were selected from the Downes et al. (2001) living edition catalog and the identified candidates have minimum light magnitudes of V∼18-22. We confirm 15 of the candidates to be cataclysmic variables.
متن کاملCataclysmic variables
Cataclysmic variables are binary stars in which a relatively normal star is transferring mass to its compact companion. This interaction gives rise to a rich range of behaviour, of which the most noticeable are the outbursts that give the class its name. Novae belong to the class, as do the less well known dwarf novae and magnetic systems. Novae draw their energy from nuclear reactions, while d...
متن کاملHigh speed photometry of faint Cataclysmic Variables : II . RS Car , V 365 Car , V 436 Car
Short time scale photometric properties of eight faint Cataclysmic Variable (CV) stars are presented. Nova Carinae 1895 (RS Car) has a photometric modulation at 1.977 h which could be either an orbital or a superhump period. Nova Carinae 1948 (V365 Car) shows flickering, but any orbital modulation has a period in excess of 6 h. The nova-like variable and X-ray source V436 Car has an orbital mod...
متن کاملHigh Speed photometry of faint Cataclysmic Variables : I . V 359 Cen
The first results of a photometric survey of faint Cataclysmic Variables are presented. V359 Cen is an SU UMa star with a period of 112 min. Even though observed at quiescence, the mass transfer rate in this old nova may be sufficiently high that in such a short period system (with its implied small mass ratio) the disc may be excited into an elliptical shape with the result that the observed b...
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ژورنال
عنوان ژورنال: New Astronomy
سال: 2017
ISSN: 1384-1076
DOI: 10.1016/j.newast.2016.10.013