Results 41 to 50 of about 3,333,915 (260)

TY Pup: A Low-mass-ratio and Deep Contact Binary as a Progenitor Candidate of Luminous Red Novae [PDF]

open access: yesAstronomical 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
semanticscholar   +1 more source

Photometric investigation of the contact binary GU Orionis with high metallicity [PDF]

open access: yesNippon 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
semanticscholar   +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

Asteroid lightcurves: Can't tell a contact binary from a brick

open access: yes, 2020
Over the last couple decades, numerous papers based on lightcurve observations of asteroids have derived shapes that were claimed to represent “contact binary” or fluid equilibrium figures. From these shapes, the authors then presumed to derive densities,
A. Harris, B. Warner
semanticscholar   +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

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

First photometric study of ultrashort-period contact binary 1SWASP J140533.33+114639.1 [PDF]

open access: yes, 2017
In this paper, CCD photometric light curves for the short-period eclipsing binary 1SWASP J140533.33+114639.1 (hereafter J1405) in the BV R bands are presented and analyzed using the 2013 version of the Wilson-Devinney (W-D) code.
Bin Zhang   +4 more
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

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

BSN: The First Photometric Study of 10 Contact Binary Systems from the Northern and Southern Hemispheres

open access: yesAstronomical Journal
Photometric observations were made with standard filters in four observatories for 10 contact binary systems. We analyzed the orbital period variations of the systems and found that six of them show long-term changes.
A. Poro   +9 more
semanticscholar   +1 more source

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