SIMBAD references

2014AJ....147...41L - Astron. J., 147, 41 (2014/February-0)

First photometric study of the very short period K-type contact binary 1SWASP J064501.21+342154.9.

LIU N.-P., QIAN S.-B., SOONTHORNTHUM B., LEUNG K.-C., LIAO W.-P., ZHU L.-Y., HE J.-J., LIU L. and ZHAO E.-G.

Abstract (from CDS):

The first high precision CCD photometric light curves of 1SWASP J064501.21+342154.9 were obtained in 2013 February along with several new times of minimum light. The multi-color light curves were analyzed using the Wilson-Devinney code. Photometric solutions reveal that the system is a W-type shallow contact binary with a mass ratio of q = 2.110±0.007 and a degree of contact of f = 15.3%±2.1%. A third light contributing about 2% of the total luminosity in the I band was found. It may come from a cool tertiary component. A small spot found on the surface of the binary indicates that the solar-like activities are at a low level at present.

Abstract Copyright: ∼

Journal keyword(s): binaries: close - binaries: eclipsing - stars: evolution - stars: individual: 1SWASP J064501.21+342154.9

Simbad objects: 10

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