Results 1 to 10 of about 186,944 (198)

Small Mass Ratio Contact Binary [PDF]

Journal of Astronomy and Space Sciences, 2003
The contact binary system has been classified in five different types according to their physical properties.
Kyu-Dong Oh, Chun-Hwey Kim, Young Woon Kang, Yonggi Kim   +3 more
doaj   +6 more sources

CCD Photometry of Low Mass Ratio Contact Binary FP Boo - IV [PDF]

Journal of Astronomy and Space Sciences, 2009
We present new B, V, and R CCD photometric light curves for the low mass ratio contact binary FP Boo. A new photometric solution and absolute physical dimensions of the system were derived by applying the Wilson-Devinney program to our observed light ...
Kyu-Dong Oh, Woo-Baik Lee
doaj   +4 more sources

The Strength and Shapes of Contact Binary Objects

The Astrophysical Journal Letters
While contact binary objects are common in the solar system, their formation mechanism is unclear. In this work we examine several contact binaries and calculate the necessary strength parameters that allow the two lobes to merge without the smaller of ...
Alex J. Meyer, Daniel J. Scheeres
doaj   +5 more sources

Small Mass Ratio Contact Binary GR Vir and HV Aqr [PDF]

Journal of Astronomy and Space Sciences, 2004
The absolute dimensions of low mass contact binary, GR Vir and HV Aqr were obtained using WD program from the published spectroscopic and photometric observational data.
Kyu-Dong Oh, Chun-Hwey Kim, Young Woon Kang, Ho-il Kim, Woo-Baik Lee   +4 more
doaj   +2 more sources

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
doaj   +3 more sources

A contact binary satellite of the asteroid (152830) Dinkinesh. [PDF]

Nature
Abstract Asteroids with diameters less than about 5 km have complex histories because they are small enough for radiative torques (that is, YORP, short for the Yarkovsky–O’Keefe–Radzievskii–Paddack effect) 1 to be a notable factor in their evolution 2
Levison HF, Marchi S, Noll KS, Spencer JR, Statler TS, Bell JF, Bierhaus EB, Binzel R, Bottke WF, Britt D, Brown ME, Buie MW, Christensen PR, Dello Russo N, Emery JP, Grundy WM, Hahn M, Hamilton VE, Howett C, Kaplan H, Kretke K, Lauer TR, Manzoni C, Marschall R, Martin AC, May BH, Mottola S, Olkin CB, Pätzold M, Parker JW, Porter S, Preusker F, Protopapa S, Reuter DC, Robbins SJ, Salmon J, Simon AA, Stern SA, Sunshine JM, Wong I, Weaver HA, Adam C, Ancheta S, Andrews J, Anwar S, Barnouin OS, Beasley M, Berry KE, Birath E, Bolin B, Booco M, Burns R, Campbell P, Carpenter R, Crombie K, Effertz M, Eifert E, Ellis C, Faiks P, Fischetti J, Fleming P, Francis K, Franco R, Freund S, Gallagher C, Geeraert J, Gobat C, Gorgas D, Granat C, Gray S, Haas P, Harch A, Hegedus K, Isabelle C, Jackson B, Jacob T, Jennings S, Kaufmann D, Keeney BA, Kennedy T, Lauffer K, Lessac-Chenen E, Leonard R, Levine A, Lunsford A, Martin T, McAdams J, Mehall G, Merkley T, Miller G, Montanaro M, Montgomery A, Murphy G, Myers M, Nelson DS, Ocampo A, Olds R, Pelgrift JY, Perkins T, Pineau J, Poland D, Ramanan V, Rose D, Sahr E, Short O, Solanki I, Stanbridge D, Sutter B, Talpas Z, Taylor H, Treiu B, Vermeer N, Vincent M, Wallace M, Weigle G, Wibben DR, Wiens Z, Wilson JP, Zhao Y.   +118 more
europepmc   +7 more sources

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, Ho-il Kim, Young Woon Kang, Kyu-Dong Oh   +3 more
doaj   +3 more sources

Light Curves and Roche Configurations of Near-Contact Binary AX Draconis [PDF]

Journal of Astronomy and Space Sciences, 2003
We completed the light curves of near-contact binary system AX Dra for 11 nights from March 2001 to May using the 61-cm reflector and VR filters at Sobaeksan Optical Astronomy Observatory.
Ho-Il Kim, Jae Woo Lee, Chun-Hwey Kim, Jae-Hyuk Yoon, Woo-Baik Lee   +4 more
doaj   +2 more sources

Photoelectric Observations and Analysis of the Contact Binary W UMa [PDF]

Journal of Astronomy and Space Sciences, 2001
The unpublished photoelectric observations of the contact binary W UMa in ultraviolet, blue, and yellow bandpasses made on four nights during the observing seasons from April, 1984 to May, 1985 were presented.
Chun-Hwey Kim, Chung Uk Lee, Young Woon Kang   +2 more
doaj   +1 more source

Modeling contact binaries

Astronomy & Astrophysics, 2023
Context. Among massive stars, binary interaction is the rule rather than the exception. The closest binaries – those with periods of less than ∼10 days – undergo mass transfer during core-hydrogen burning, with many of them experiencing a nuclear-timescale contact phase.
Fabry, M., Marchant, P., Langer, N., Sana, H.   +3 more
  +12 more sources