The long-term light curve of the cataclysmic variable DW Ursae Majoris

Details The long-term light curve of the cataclysmic variable DW Ursae Majoris The long-term light curve of the cataclysmic variable DW Ursae Majoris

Sep 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993pasp..105..922h&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 105, no. 691, p. 922-925.

Other

17

Astronomical Photometry, Cataclysmic Variables, Light Curve, Magnetic Anomalies, Novae, Charge Coupled Devices, Stellar Evolution, Stellar Luminosity

Scientific paper

A 2.5-yr sequence of CCD photometry on DW Ursae Majoris has shown an unusual 4 mag fall and rise in the light curve. The rise appears relatively smooth and regular, unlike the transitions of other high-state/low-state systems. The effect could be due to solar-type magnetic variations on the secondary of the cataclysmic variable. Some observational as well as theoretical work suggests that a nova prior to outburst may show photometric behavior similar to that displayed by DW UMa.

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