2014AJ....147...41L

Query : 2014AJ....147...41L

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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Number of rows : 10
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 V* V523 Cas SB* 00 40 06.2679105096 +50 14 15.518292216   11.698 10.62 9.969 9.388 K4V 174 0
2 V* YZ Phe EB* 01 42 25.8889858968 -45 57 03.828072672     12.56     K3V 29 0
3 2MASS J06445460+3424096 * 06 44 54.5977792008 +34 24 09.698818536           ~ 1 0
4 2MASS J06445806+3423522 * 06 44 58.0666148616 +34 23 52.243591308           ~ 1 0
5 NSVS 7178717 EB* 06 45 01.2244405485 +34 21 54.651662131   15.298 14.11     K4-5 22 0
6 StKM 1-704 ** 08 31 27.877776 +19 53 03.50628   11.52 10.38 10.04 9.125 K4 45 0
7 V* XY Leo ** 10 01 40.4170488672 +17 24 32.602180644   10.66 9.68 8.855 8.474 K0V 287 0
8 V* CC Com SB* 12 12 06.0378799056 +22 31 58.682832024   13.09 11.42 10.543 10.085 K4/5V 228 0
9 V* RW Com SB* 12 33 00.2840199504 +26 42 58.361790816   12.33 11.682 10.929 9.977 G8e 169 0
10 V* FY Boo EB* 13 46 51.8065366440 +22 57 14.068669032     13.14     K1 38 0

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