Results 71 to 80 of about 1,027 (203)

COMPARATIVE ANALYSIS OF NUMERICAL METHODS OF DETERMINATION OF PARAMETERS OF BINARY STARS. CASE OF SPHERICAL COMPONENTS

Odessa Astronomical Publications, 2013
We discuss methods for modeling eclipsing binary stars. There are few realizations of the Wilson- Devinney (1971) code and its improvements, e.g. “Binary Makef’, “Phoebe”. A parameter search using the Monte- Carlo method was realized by Zola et al. (2010)
I. A. Andronov, M. G. Tkachenko
doaj   +1 more source

A Low Metallicity Massive Contact Binary Star System Candidate in WLM Identified by Hubble and James Webb Space Telescope Imaging

The Astrophysical Journal
We present archival Hubble Space Telescope (HST) and JWST ultraviolet through near-infrared time series photometric observations of a massive minimal-contact binary candidate in the metal-poor galaxy Wolf–Lundmark–Melotte ( Z  = 0.14 Z _⊙ ).
Maude Gull, Daniel R. Weisz, Kareem El-Badry, Jan Henneco, Alessandro Savino, Meredith Durbin, Yumi Choi, Roger E. Cohen, Andrew A. Cole, Matteo Correnti, Julianne J. Dalcanton, Karoline M. Gilbert, Steven R. Goldman, Puragra Guhathakurta, Kristen B. W. McQuinn, Max J. B. Newman, Evan D. Skillman, Benjamin F. Williams   +17 more
doaj   +1 more source

Evidence for a Close-in Tertiary Orbiting around the Algol-type System HZ Dra with Tidal Splitting and Spots Activities

The Astrophysical Journal
We report a cyclic variation of the O − C diagram with a semiamplitude of 0.0033 days and a period of 1.05 yr for the pulsating eclipsing binary HZ Dra. The cyclic variation can be explained by the light travel-time effect via the presence of a close-in ...
Ping Li, Wen-Ping Liao, Sheng-Bang Qian, Lin-Jia Li, Qi-Bin Sun, Xiang-Dong Shi, Azizbek Matekov, Qi-Huan Zeng, Zhao-Long Deng, Xiao-Hui Fang   +9 more
doaj   +1 more source

THE ECLIPSING BINARY SYSTEM BM ORI

Odessa Astronomical Publications, 2017
Photometric and spectroscopic features of eclipsing binary system BM Ori can be described well by a model in which the components are the primary star B3 ZAMS, the secondary F2 pre-main sequence star and a dusty envelope of large grains around the ...
N. I. Bondar', E. A Vitrichenko
doaj   +1 more source

Physical characterization of late-type contact binary systems observed by LAMOST: a comprehensive statistical analysis. [PDF]

Sci Rep, 2023
Abdel Rahman HI, Darwish M.
europepmc   +1 more source

CCD photometry of variable stars in the Magellanic Clouds - I. The eclipsing binaries HV 2208 and HV 12634 [PDF]

, 1992
S. West, William Tobin, A. C. Gilmore
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A binary pulsar in a 53-minute orbit. [PDF]

Nature, 2023
Pan Z, Lu JG, Jiang P, Han JL, Chen HL, Han ZW, Liu K, Qian L, Xu RX, Zhang B, Luo JT, Yan Z, Yang ZL, Zhou DJ, Wang PF, Wang C, Li MH, Zhu M.   +17 more
europepmc   +1 more source

CCD photometry of variable stars in the Magellanic Clouds -- VI. The eclipsing binary HV 982 in the Large Magellanic Cloud [PDF]

, 1998
J. Pritchard, William Tobin, M. Clark, E. F. Guinan   +3 more
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Neutron star mass estimates from gamma-ray eclipses in spider millisecond pulsar binaries. [PDF]

Nat Astron, 2023
Clark CJ, Kerr M, Barr ED, Bhattacharyya B, Breton RP, Bruel P, Camilo F, Chen W, Cognard I, Cromartie HT, Deneva J, Dhillon VS, Guillemot L, Kennedy MR, Kramer M, Lyne AG, Sánchez DM, Nieder L, Phillips C, Ransom SM, Ray PS, Roberts MSE, Roy J, Smith DA, Spiewak R, Stappers BW, Tabassum S, Theureau G, Voisin G.   +28 more
europepmc   +1 more source

An empirical method to estimate the LMC distance using B-stars in eclipsing binary systems [PDF]

, 2002
M. Salaris, M. A. T. Groenewegen
openalex   +1 more source