Volume 384, Number 1, MarchII 2002
|Page(s)||L6 - L9|
|Published online||15 March 2002|
Letter to the Editor
RX And: An intermediate between Z Cam and VY Scl stars
Universitäts-Sternwarte, Geismarlandstr.11, 37083 Göttingen, Germany
2 Department of Physics and Astronomy, University of Southampton, Highfield, Southampton SO17 1BJ, UK
3 American Association of Variable Star Observers, 25 Birch Street, Cambridge, MA 02138, USA
Corresponding author: M. R. Schreiber, firstname.lastname@example.org
Accepted: 22 January 2002
We present the AAVSO long term visual light curve of RX And. The system has been classified as a Z Cam-type dwarf nova, showing alternating standstills and dwarf nova outbursts. Our data reveal that RX And has also characteristics of a VY Scl star, remaining for extended periods in a low state ~3.5 mag fainter than the standstill with no detectable outbursts. We discuss this result in the context of mass transfer variations in CVs and the still poorly understood VY Scl phenomenon.
Key words: accretion, accretion discs / binaries: close / stars: individual: RX And / novae, cataclysmic variables
© ESO, 2002
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