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J/other/RMxAA/53.235 Photometry of 6 deep-contact W UMa (Kjurkchieva+, 2017)
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Beginning of ReadMe :J/other/RMxAA/53.235 Photometry of 6 deep-contact W UMa (Kjurkchieva+, 2017)
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Observations and light curve solutions of six deep-contact W UMA binaries.
Kjurkchieva D.P., Popov V.A., Vasileva D.L., Petrov N.I.
<Rev. Mex. Astron. Astrofis., 53, 235-246 (2017)>
=2017RMxAA..53..235K (SIMBAD/NED BibCode)
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ADC_Keywords: Binaries, eclipsing ; Photometry, CCD ; Photometry, SDSS
Keywords: binaries: eclipsing - binaries: close - stars: fundamental parameters
Abstract:
Photometric observations in Sloan g' and i' bands of W UMa binaries
V0637 Peg, V0473 Cam, CSS J153314.8+560527, CSS J075258.0+382035,
V0416 Gem and NSVS 6859986 are presented. Their periods are in the
range of 0.26-0.43d. The light curve solutions revealed that the
components of each target are almost equal in temperature. The stellar
components are of G and K spectral types and undergo total eclipses.
All targets have deep-contact configurations with fillout factor
f>=0.5. NSVS 6859986 has one o f the biggest value determined until
now, f=0.84. We studied the empirical dependencies of fillout factor
on the stellar parameters (temperature, period, mass ratio, relative
component radii, and luminosity ratio) for a sample of around thirty
stars. They are consistent with the theoretical predictions but there
are deviations from the common trends.
Description:
In this paper we present photometric observations and light curve
solutions of six deep-contact W UMa binaries:
V0637 Peg (ASAS 222153+2802.8; GSC 02226-02148; UCAC4 591-134612;
2MASS J22215338+2802471),
V0473 Cam (GSC 04530-01042; 2MASS J07170493+7710260; UCAC4 836-008955),
CSS J153314.8+560527 (2MASS J15331471+5605280; UCAC4 731-053285;
GSC 03872-00076),
CSS J075258.0+382035 (UCAC4 642-042673, 2MASS J07513566+3820286),
V0416 Gem (GSC 01356-02826; ASAS J065947+2229.9) and
NSVS 6859986 (GSC 02397- 00333; 2MASS J05114146+3531357;
UCAC4 628-022051)