RX And: An intermediate between Z Cam and VY Scl stars

RX And: An intermediate between Z Cam and VY Scl stars

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 ...

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Veröffentlicht in:Astronomy and astrophysics (Berlin) 2002-03, Vol.384 (1), p.L6-L9
Hauptverfasser: Schreiber, M. R., Gänsicke, B. T., Mattei, J. A.
Format: Artikel
Sprache:eng
Schlagworte:
accretion
accretion discs
binaries: close
cataclysmic variables
novae
stars: individual: RX And
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Zusammenfassung: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.
ISSN:0004-6361
1432-0746
DOI:10.1051/0004-6361:20020122