Results 81 to 90 of about 186,944 (198)
Formation and Evolution of Contact Binaries [PDF]
Journal of Astronomy and Space Sciences, 2012 describe a series of processes, including hierarchical fragmentation, gravitational scattering, Kozai cycles within triple systems, tidal friction and magnetic braking, that I believe are responsible for producing the modest but significant fraction of stars that are observed as contact binaries. I also discuss further processes, namely heat transport,
openaire +2 more sources
Orbital Modulation Induced by a Third Component in the Overcontact Binary V0554 Dra
The Astrophysical JournalWe present the first comprehensive photometric and spectroscopic analysis of the overcontact eclipsing binary V0554 Dra. By simultaneously modeling multiband light curves and radial velocity data using the Wilson–Devinney code, we determine that the ...
Mu-Lan Deng +10 more
doaj +1 more source
TV UMi: A Shallowly Eclipsing Marginal-Contact Binary
GalaxiesUsing twenty sectors of TESS observations and the hitherto unutilized radial velocities from the David Dunlap Observatory survey, we fully characterize the close binary TV UMi.
Atila Čeki, Olivera Latković
doaj +1 more source
Photometric Studies of the Contact Binary BV Draconis [PDF]
Journal of Astronomy and Space Sciences, 1999 We performed CCD photometric observations of W UMa type contact binary BV Dra during eight nights from May 1996 to June 1999 using 61cm telescope at Sobaeksan Optical Astronomy Observatory, and completed BVR light curves of the system.
Jae Woo Lee, Wonyong Han, Chun-Hwey Kim
doaj
Thermodynamic Stability of Binary Oxides in Contact with Silicon
, 1994 Using tabulated thermodynamic data, a comprehensive investigation of the thermodynamic stability of binary oxides in contact with silicon at 1000 K was conducted.
D. G. Schlom, K. J. Hubbard
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A Application of WD Model to EB Type Contact Binary System [PDF]
Journal of Astronomy and Space Sciences, 2000 The EB type contact binaries show large temperature difference ( T 1,000K) between two components. Thus we have modified the mode 3 of the WD program to adjust albedos, limb darkening coefficients and gravity darkening exponents for both components of ...
Su-Yeon Oh, Kyu-Dong Oh
doaj
Photometric study of the over-contact binary star
, 2003 Here we present the first Johnson-Cousins VRC light curves of the over-contact binary star GSC 3822 ...
T. Borkovits +2 more
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Binary Analysis and Period Study of the Long-period, High-mass-ratio Contact Binary KIC 7766185
The Astronomical JournalWe present an in-depth photometric and spectroscopic study of the contact binary KIC 7766185. Spectroscopic observations were conducted on the Mayall 4 m telescope at Kitt Peak National Observatory and used to extract radial velocities.
Conor M. Larsen, Andrej Prša
doaj +1 more source
New Photometric Investigation of the Solar-Type Shallow-Contact Binary HH Bootis
Advances in Astronomy, 2019 The short-period solar-type contact binary HH Boo was monitored photometrically for about 8 years. It is found that the CCD light curves in the B, V, R, and I bands obtained in 2010 are symmetric, while the multicolor light curves observed in 2011 and ...
Jia-jia He, Jing-jing Wang
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Physical characterization of late-type contact binary systems observed by LAMOST: a comprehensive statistical analysis. [PDF]
Sci Rep, 2023 Abdel Rahman HI, Darwish M.
europepmc +1 more source