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Spectroscopic search for new SW Sextantis stars in the 3-4 hour orbital period range -- I
P. Rodriguez-Gil, L. Schmidtobreick, B. T. Gaensicke
[Abridged] We report on time-resolved optical spectroscopy of ten non-eclipsing nova-like cataclysmic variables in the orbital period range between 3 and 4 hours. Of the ten system…
The emission line galaxy TV Reticuli: Evidence for an ultraluminous supernova
L. Schmidtobreick, C. Tappert, H. Horst +2
TV Ret was classified as a cataclysmic variable due to an outburst observed in 1977. We intended to confirm this classification and derive some basic properties of the system. Low…
AD Mensae: a dwarf nova in the period gap
L. Schmidtobreick, C. Tappert
AD Men was classified as a probable long-period dwarf nova based on its long-term variability. Recent spectroscopic data instead suggested a short-period system. With the here pres…
Spectroscopy of the candidate pre-CV LTT 560
C. Tappert, B. T. Gaensicke, R. E. Mennickent +1
We present preliminary results on spectroscopic data of the candidate pre-cataclysmic variable LTT 560. A fit to the flux-calibrated spectrum reveals the temperature of the white-d…