The infrared light curves of the nova-like variable VZ Scl

Astronomy and Astrophysics – Astronomy

Scientific paper

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Eclipsing Binary Stars, Infrared Stars, Light Curve, Novae, Dwarf Novae, Infrared Photometry, Minima, Stellar Magnitude, Stellar Mass Accretion, Stellar Spectrophotometry

Scientific paper

Infrared photometry of the eclipsing nova-like variable VZ Scl is presented. The authors have obtained light curves of the system in its normal state, and measured the colours of the system in a very faint state which was observed in 1982 November. In the bright state the infrared radiation is dominated by the disc, but in the faint state the secondary provides almost all the radiation. The authors derive a distance of around 530 pc from the infrared magnitude of the secondary. They find the optical luminosities of nova-like variables to be substantially higher than those of dwarf novae, indicating higher accretion rates in the nova-like systems.

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