THE LONG-TERM LIGHT-CURVE OF THE CATACLYSMIC VARIABLE DW URSAE MAJORIS

Authors
HONEYCUTT RK LIVIO M ROBERTSON JW
Citation
Rk. Honeycutt et al., THE LONG-TERM LIGHT-CURVE OF THE CATACLYSMIC VARIABLE DW URSAE MAJORIS, Publications of the Astronomical Society of the Pacific, 105(691), 1993, pp. 922-925
Citations number
29
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Publications of the Astronomical Society of the Pacific
ISSN journal
00046280 → ACNP
Volume
105
Issue
691
Year of publication
1993
Pages
922 - 925
Database
ISI
SICI code
0004-6280(1993)105:691<922:TLLOTC>2.0.ZU;2-R
Abstract
A 2.5-yr sequence of CCD photometry on DW Ursae Majoris has shown an u nusual 4 mag fall and rise in the light curve. The rise appears relati vely smooth and regular, unlike the transitions of other high-state/lo w-state systems. The effect could be due to solar-type magnetic variat ions 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.