A period-colour relation for dwarf novae at minimum

Details A period-colour relation for dwarf novae at minimum A period-colour relation for dwarf novae at minimum

Feb 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984mnras.206..919e&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 206, Feb. 15, 1984, p. 919-928.

Astronomy and Astrophysics

Astronomy

20

Accretion Disks, Dwarf Novae, Orbital Elements, Stellar Color, Stellar Motions, Ubv Spectra, Variable Stars, Color-Color Diagram, Light Curve, Minima, Stellar Mass Accretion, Stellar Models

Scientific paper

An analysis of available UBVRI photometry of dwarf novae at minimum shows that the colour indices (B-V) and (U-B) correlate strongly with orbital period. In the colour-colour diagram they define a characteristic quiescent branch. The authors discuss two models to explain the correlation: (1) optically thin accretion discs and (2) a Lynden-Bell disc with a main-sequence secondary star.

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