Results 21 to 30 of about 22,790 (275)

Parameterization of long-period eclipsing binaries [PDF]

Open Astronomy, 2022
Abstract One of the important sources for independent determination of stellar masses is eclipsing binaries with components on the main sequence, and with observable spectral lines of both components. The parameters of such stars are used to construct the mass–luminosity relation for stars of high and intermediate masses. Among them, the
Pakhomova Polina, Berdnikov Leonid, Kniazev Alexei, Katkov Ivan, Malkov Oleg   +4 more
openaire   +2 more sources

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 Search for Exoplanets in Short-Period Binary Star Systems [PDF]

Journal of Astronomy and Space Sciences, 2012
This paper reports the progress of a search for exoplanets with S-type orbits in short-period binary star systems. The selected targets have stellar orbital periods of just a few days. These systems are eclipsing binaries so that exoplanet transits, if
Ronald Kaitchuck, Garrison Turner, Joseph Childers   +2 more
doaj   +1 more source

The Distance to the Massive Eclipsing Binary LMC-SC1-105 in the Large Magellanic Cloud [PDF]

, 2011
This paper presents the first distance measurement to the massive, semi-detached, eclipsing binary LMC-SC1-105, located in the LH 81 association of the Large Magellanic Cloud (LMC).
Benedict, Bessell, Bitner, Bonanos, Bonanos, Cohen, Davies, Derekas, Evans, Faccioli, Fitzpatrick, Fitzpatrick, Fitzpatrick, Freedman, Guinan, Kim, Lanz, Massey, Meixner, Nikolaev, Olsen, Pejcha, Pietrzyński, Ribas, Ribas, Santolaya-Rey, Schaefer, Schlegel, Stickland, Szczygieł, van der Marel, van der Marel   +31 more
core   +3 more sources

Variability of Young Massive Stars in the Galactic Super Star Cluster Westerlund 1

, 2007
This paper presents the first optical variability study of the Westerlund 1 super star cluster in search of massive eclipsing binary systems. A total of 129 new variable stars have been identified, including the discovery of 4 eclipsing binaries that are
Alceste Z. Bonanos, Rauw G., Schweickhardt J., Townsend R. H. D., Westerlund B. E.   +4 more
core   +3 more sources

Eclipsing Binaries in Multiple Star Systems [PDF]

Symposium - International Astronomical Union, 1992
Although the majority of the known eclipsing binaries are in systems which consist of only the two eclipsing components, a significant number of them do occur as components of triple star systems or higher order multiple star systems. In this context this term is restricted to those systems whose components are in closed orbits.
openaire   +1 more source

Close-In Substellar Companions and the Formation of sdB-Type Close Binary Stars

Acta Polytechnica CTU Proceedings, 2015
The sdB-type close binaries are believed to have experienced a common-envelope phase and may evolve into cataclysmic binaries (CVs). About 10% of all known sdB binaries are eclipsing binaries consisting of very hot subdwarf primaries and low-mass ...
L. Y. Zhu, S. B. Qian, E.-G. Zhao, E. Fernández Lajús, Z.-T. Han   +4 more
doaj   +1 more source

The Frequency of Binary Stars in the Core of 47 Tucanae

, 2001
Differential time series photometry has been derived for 46422 main-sequence stars in the core of 47 Tucanae. The observations consisted of near-continuous 160-s exposures alternating between the F555W and F814W filters for 8.3 days in 1999 July with ...
Alard C., Ata Sarajedini, Bacon D., Belloni T., Bertelli G., Bopp B. W., Callanan P. J., Cutispoto G., Davies M. B., Duquennoy A., Elson R. A. W., Heggie D. C., Heggie D. C., Kaluzny J., Kaluzny J., Kaluzny J., Keppens R., Keppens R., Mathieu R. D., Menzies J. W., Meylan G., Michael D. Albrow, Peter D. Edmonds, Portegies Zwart S. F., Puragra Guhathakurta, Rahunen T., Robertson J. A., Ronald L. Gilliland, Timothy M. Brown, van den Berg M., Vilhu O., Yan L.   +31 more
core   +1 more source

The extraneous eclipses on binary light curves: KIC 5255552, KIC 10091110, and KIC 11495766

, 2017
Aims. We aim to find more eclipsing multiple systems and obtain their parameters, thus increasing our understanding of multiple systems. Methods. The extraneous eclipses on the \textit{kepler} binary light curves indicating extraneous bodies were ...
Jiang, L. Q., Qian, S. B., Sun, L. L., Wang, S. M., Wu, Y., Zhang, J.   +5 more
core   +1 more source

The TESS Ten Thousand Catalog: 10,001 Uniformly Vetted and Validated Eclipsing Binary Stars Detected in Full-frame Image Data by Machine Learning and Analyzed by Citizen Scientists

The Astrophysical Journal Supplement Series
The Transiting Exoplanet Survey Satellite (TESS) has surveyed nearly the entire sky in full-frame image mode with a time resolution of 200 s to 30 minutes and a temporal baseline of at least 27 days.
Veselin B. Kostov, Brian P. Powell, Aline U. Fornear, Marco Z. Di Fraia, Robert Gagliano, Thomas L. Jacobs, Julien S. de Lambilly, Hugo A. Durantini Luca, Steven R. Majewski, Mark Omohundro, Jerome Orosz, Saul A. Rappaport, Ryan Salik, Donald Short, William Welsh, Svetoslav Alexandrov, Cledison Marcos da Silva, Erika Dunning, Gerd Gühne, Marc Huten, Michiharu Hyogo, Davide Iannone, Sam Lee, Christian Magliano, Manya Sharma, Allan Tarr, John Yablonsky, Sovan Acharya, Fred Adams, Thomas Barclay, Benjamin T. Montet, Susan Mullally, Greg Olmschenk, Andrej Prša, Elisa Quintana, Robert Wilson, Hasret Balcioglu, Ethan Kruse, The Eclipsing Binary Patrol Collaboration   +38 more
doaj   +1 more source