Results 41 to 50 of about 753,723 (234)
Photometric Observations of the Contact Binary System V523 Cassiopeiae [PDF]
Journal of Astronomy and Space Sciences, 2006 A total of 920 observations (230 in Delta B, 230 in Delta V, 230 in Delta R, 230 in Delta I) for V523 Cas were made on 5 nights from January 6 to 24 in 2003 using the 61cm telescope with 2K CCD camera of the Sobaeksan Optical Astronomy Observatory of ...
Jang Hae Jeong +2 more
doaj +1 more source
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 +3 more sources
The Frequency of Binary Stars in the Core of 47 Tucanae
, 2001 Differential time series photometry has been derived for 46422 main-sequence stars in the core of 47 Tucanae. The observations consisted of near-continuous 160-s exposures alternating between the F555W and F814W filters for 8.3 days in 1999 July with ...
Alard C. +31 more
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Photometric Observations of the Contact Binary System CC Com [PDF]
Journal of Astronomy and Space Sciences, 2007 A total of 824 observations (206 in Δ B, 206 in Δ B, 206 in Δ R, 206 in Δ I) for CC Com were made on 3 nights from March 3 to April 3 in 2002 using the 61cm telescope with 2K CCD camera of the Sobaeksan Optical Astronomy Observatory of KASI.
Jang Hae Jeong +2 more
doaj +1 more source
Evolutionary Effects in Contact Binaries [PDF]
International Astronomical Union Colloquium, 1982 The structure and evolution of contact binaries is an extremely difficult problem in theoretical astrophysics.Several attempts have been made to set up a satisfactory model, see e.g. Lucy,1976, Flannery, 1976, Shu, Lubow and Anderson, 1976, Robertson and Eggleton, 1977, Rahunen and Vilhu, 1977 and others.
openaire +2 more sources
Photometric Observations of the Contact Binary System V523 Cassiopeiae [PDF]
Journal of Astronomy and Space Sciences, 2010 A total of 583 observations (193 in Δb, 190 in Δv, 200 in Δr) for V523 Cas was made on 9 nights from September to December in 2008 using the 100 cm telescope with 2K CCD camera of the Chungbuk National University Observatory.
Jang Hae Jeong +2 more
doaj +1 more source
Applied Sciences, 2023 This research paper presents an investigation into the shear behavior of binary mixtures composed of cubic and spherical particles, employing the discrete element method (DEM) through triaxial tests simulations.
Yun Huang +4 more
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Photometric Study of W UMa Type Binaries in the Old Open Cluster Berkeley 39 [PDF]
, 2009 The study of W UMa binary systems give a wealth of information about its nature as well as about its parent body (if any), like clusters. In this paper, we present the I passband photometric solutions of four W UMa binaries in the open cluster Berkeley ...
Al-Naimy +17 more
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A Photometric Study of Near-Contact Binary ZZ Aur [PDF]
Journal of Astronomy and Space Sciences, 2002 The BVR CCD full light curves of ZZ Aur were obtained as one of the near-contact binary observing programs at the Sobaek Mt. Observatory during Feb. 2000 - Feb. 2001. From the present observations, three primary and seven secondary times of minimum light
Kyu-Dong Oh +3 more
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A ROSAT Survey of Contact Binary Stars
, 2005 Contact binary stars are common variable stars which are all believed to emit relatively large fluxes of x-rays. In this work we combine a large new sample of contact binary stars derived from the ROTSE-I telescope with x-ray data from the ROSAT All-Sky ...
Hunsch M. +5 more
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