Statistical Survey for the Physical Characteristic of Near Contact Binary(NCBs) [PDF]
Journal of Astronomy and Space Sciences, 2005 The absolute dimensions and orbital elements of 66 near contact binaries, collected from literatures, have been analyzed to investigate the physical characteristics of the near contact binaries as well as co-relations among physical parameters.
Kyu-Dong Oh
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Chromospheric activity in bright contact binary stars [PDF]
Astronomy & Astrophysics, 2020 Context. Studying chromospheric activity of contact binaries is an effective way of revealing the magnetic activity processes of these systems. One efficient but somewhat neglected method for this purpose is to follow the changes of the Hα line profiles ...
T. Mitnyan +9 more
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The contact binary V344 Lacertae: is it a triple system? [PDF]
, 2020 The V R I $VRI$ passbands light curves of V344 Lac were presented and analyzed by using the latest version of the W-D code. The observed spectrum reveals that V344 Lac is not an A3 type but would be a later F type star according to the yielded ...
L. Liu +6 more
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The W-subtype active contact binary PZ UMa with a possible more massive tertiary component [PDF]
Nippon Tenmon Gakkai obun kenkyu hokoku, 2019 Two sets of multiple-color ($B, V, R_c, I_c$) light curves of PZ UMa were observed in dependently with the 2.4 meter telescope at the Thai National Observatory and the 1 meter telescope at Yunnan Observatories.
Xiao Zhou, B. Soonthornthum
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Detection and Seismic Study of Gravity and Rossby Mode Pulsations in Four Contact Binaries
The Astrophysical Journal, 2023 We report the detection of gravity ( g ) and Rossby ( r ) mode pulsations of four short-period eclipsing binaries, KIC 5439790, KIC 7501230, KIC 9350889, and KIC 9453192 based on the 4 yr Kepler high-precision photometry.
X. B. Zhang +3 more
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Detection of the lowest mass ratio contact binary in the universe: TYC 3801-1529-1 [PDF]
Astronomy & AstrophysicsThis paper presents the first analysis of the contact binary TYC 3801-1529-1. We observed four sets of multiple bands complete light curves and one set of radial velocity curve of the primary component.
Kai Li +9 more
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TY Pup: A Low-mass-ratio and Deep Contact Binary as a Progenitor Candidate of Luminous Red Novae [PDF]
Astronomical Journal, 2018 TY Pup is a well-known bright eclipsing binary with an orbital period of 0.8192 days. New light curves in B, V, (RI)C bands were obtained with the 0.61 m reflector robotic telescope (PROMPT-8) at CTIO in Chile during 2015 and 2017.
T. Sarotsakulchai +8 more
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Photometric investigation of the contact binary GU Orionis with high metallicity [PDF]
Nippon Tenmon Gakkai obun kenkyu hokoku, 2018 GU Ori was observed with the 1 m telescope at Yunnan Observatories in 2005. To determine its physical properties, the Wilson-Devinney program was used.
Xiao Zhou +7 more
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Period Change of the Contact Binary AH Tauri [PDF]
Journal of Astronomy and Space Sciences, 2004 New BVRI photometric observations of the contact binary AH Tau were performed with the 61 cm reflector and a 2K CCD camera at the Sobaeksan Optical Astronomy Observatory during seven nights from September to December, 2001. A total of 144 times of minima
Dongjoo Lee +5 more
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Low Mass Ratio Contact Binary Systems HN UMa and II UMa - III [PDF]
Journal of Astronomy and Space Sciences, 2006 We present newly observed BVRI CCD light curves for low mass ratio contact binaries, HN UMa and II UMa. The absolute dimensions of these objects were obtained by applying the Wilson-Devinney program to previously published spectroscopic analysis and to ...
Woo-Baik Lee +3 more
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