Results 31 to 40 of about 2,923,293 (310)

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

open access: yesJournal 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   +1 more source

A Possible Dynamically Cold Classical Contact Binary: (126719) 2002 CC249 [PDF]

open access: yes, 2017
Images of the Kuiper Belt object (126719) 2002 CC249 obtained in 2016 and 2017 using the 6.5 m Magellan-Baade Telescope and the 4.3 m Discovery Channel Telescope are presented.
A. Thirouin, S. Sheppard
semanticscholar   +1 more source

Study of Shear Behavior of Binary Mixtures by DEM Simulation of Biaxial Test in the Membrane Boundary Condition

open access: yesFrontiers in Physics, 2021
This paper aims to study the shear behavior of binary particles with irregular shapes by discrete element method simulations of the biaxial test in the membrane boundary condition.
Kai Wu   +4 more
doaj   +1 more source

OBSERVED PROPERTIES OF CONTACT BINARY SYSTEMS

open access: yesOdessa Astronomical Publications, 2017
A group of close eclipsing systems, which continues to pose a challenge in many subjects of modern astrophysics, is that of contact binaries. In this study, using the most recent observational data of a large sample of such systems, a review concerning ...
A. Kalimeris, H. Rovithis-Livaniou
doaj   +1 more source

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

open access: yesJournal 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   +4 more
doaj   +1 more source

2004 TT357: A Potential Contact Binary in the Trans-Neptunian Belt [PDF]

open access: yes, 2017
We report photometric observations of the trans-Neptunian object 2004 TT357 obtained in 2015 and 2017 using the 4.3 m Lowell’s Discovery Channel Telescope.
A. Thirouin, S. Sheppard, K. Noll
semanticscholar   +1 more source

Two Massive Twins in a Deep-contact Binary with a Black Hole Candidate

open access: yesAstrophysical Journal, 2019
New light curves in B, V, R, and I bands for the B-type contact binary V593 Cen were obtained, and another V-band light curve was collected from All Sky Automated Survey data. We analyzed these two sets of light curves using the Wilson–Devinney code.
Z. Ergang   +7 more
semanticscholar   +1 more source

A low-mass-ratio and deep contact binary as the progenitor of the merger V1309 Sco [PDF]

open access: yes, 2016
Nova Sco 2008 (=V1309 Sco) is an example of a V838 Mon type eruption rather than a typical classical nova. This enigmatic object was recently shown to have resulted from the merger of two stars in a contact binary. It is the first stellar merger that was
Li-ying Zhu, E. Zhao, Xiao Zhou
semanticscholar   +1 more source

CN Andromedae: a shallow contact binary with a possible tertiary component

open access: yesResearch in Astronomy and Astrophysics, 2019
In this study, new photometric observations of shallow contact binary CN Andromedae (CN And) were performed and multi-color (BV R) CCD light curves (LCs) were obtained. Simultaneous analysis of new LCs and published radial velocity (RV) data reveals that
M. F. Yıldırım   +2 more
semanticscholar   +1 more source

Physical properties and evolutionary status of the W-subtype contact binary V502 Oph with a stellar companion [PDF]

open access: yes, 2016
Multi-color ($B$ $V$ $R_c$ $I_c$) CCD photometric light curves of the contact binary V502 Oph are analyzed using the Wilson-Devinney (W-D) program. The solutions reveal that V502 Oph is a W-subtype contact ($f = 35.3\,\%$) binary system.
Xiao Zhou   +4 more
semanticscholar   +1 more source

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