Results 31 to 40 of about 48,149 (293)
ZZ Piscis Austrinus (ZZ PsA): a bright red nova progenitor and the instability mass ratio of contact binary stars [PDF]
Monthly notices of the Royal Astronomical Society, 2020 ZZ Piscis Austrinus (ZZ PsA) is a neglected bright southern contact binary system with maximum V magnitude of 9.26. We present the first multiband photometric analysis and find the system to be in deep contact (>95 per cent) with an extremely low mass ...
S. Wadhwa +6 more
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Erratum: Masses and angular momenta of contact binary stars [PDF]
Monthly Notices of the Royal Astronomical Society: Letters, 2006 K. Gazeas, P. G. Niarchos
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Contact tracing of binary stars: Pathways to stellar mergers (Corrigendum) [PDF]
Astronomy & AstrophysicsJan Henneco +2 more
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Detection and Seismic Study of Gravity and Rossby Mode Pulsations in Four Contact Binaries
The Astrophysical Journal, 2023 We report the detection of gravity ( g ) and Rossby ( r ) mode pulsations of four short-period eclipsing binaries, KIC 5439790, KIC 7501230, KIC 9350889, and KIC 9453192 based on the 4 yr Kepler high-precision photometry.
X. B. Zhang +3 more
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Reanalyzing the Light Curves and Absolute Parameters of Twenty Contact Binary Stars Using TESS Data [PDF]
AstrophysicsReanalyzing contact binaries with space-based photometric data and investigating possible parameter changes can yield accurate samples for theoretical studies.
Ehsan Paki, Atila Poro
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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 +4 more
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Low Mass Ratio Contact Binary V410 Aur and V776 Cas - II [PDF]
Journal of Astronomy and Space Sciences, 2005 New BVR CCD light curves of the low mass ratio contact binaries, V410 Aur and V776 Cas, were observed with the 61 cm reflector and a 2K CCD camera at the Sobaeksan Astronomical Observatory.
Kyu-Dong Oh, Chun-Hwey Kim, Ho-iL Kim
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From a Dinuclear System to Close Binary Cosmic Objects
Astronomy, 2023 Applying the ideas from microscopic objects to macroscopic stellar and galactic systems, the evolution of compact di-stars and di-galaxies is studied in the mass asymmetry coordinate. The formation of stable binary systems is analyzed.
G. G. Adamian +3 more
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Minimum mass ratio of contact binary stars
, 2022 Mass ratio $q$ of a contact binary star evolves due to mass transfer, magnetic braking, and thermal relaxation oscillations to small values until it crosses a critical threshold $q_\text{min}$. When that happens, the binary undergoes the tidal Darwin instability leading to a rapid coalescence of the components and observable brightening of the system ...
Pešta, Milan, Ondřej Pejcha
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Photometric study of contact binary star MW And [PDF]
New Astronomy, 2019 The Tarleton Observatory's 0.8m telescope and CCD photometer were used to obtain 1298 observations of the short period eclipsing binary star MW And. The observations were obtained in Johnson's BVR filters. The light curves show that MW And is an eclipsing binary star with a period of 0.26376886 days. Further analysis showed that the period of MW And is
Ahmed Waqas Zubairi +2 more
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