Results 41 to 50 of about 159,122 (291)

Tidal effects in close binary stars [PDF]

Symposium - International Astronomical Union, 1984
This review addresses the question of what can be learned about the stellar interiors from the study of the tidal effects in close binary stars.
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The Search for Close Binary Evolved Stars [PDF]

International Astronomical Union Colloquium, 1989
AbstractWe report on a search for short-period binary systems composed of pairs of evolved stars. The search is being carried out concurrently with a program to characterize the kinematical properties of two different samples of stars. Each sample has produced one close binary candidate for which further spectroscopic observations are planned.
Rex A. Saffer, James Liebert
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Probing the models: Abundances for high-mass stars in binaries [PDF]

, 2013
The complexity of composite spectra of close binary star system makes study of the spectra of their component stars extremely difficult. For this reason there exists very little information on the photospheric chemical composition of stars in close ...
Pavlovski, K., Southworth, J.
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‘Swinging Dipoles’ in Magnetic Close Binary Stars [PDF]

International Astronomical Union Colloquium, 1987
AbstractThe recently discovered phenomena in polars - Magnetic Close Binary Stars (MCBS), are discussed. Asynchronous MCBS are on the ‘propeller stage’ (which is analogous to the investigated one for neutron stars), and are synchronizing during ts ≲ 103 yr, being during this stage rapidly evolving, mass ejecting systems.
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Close encounters in young stellar clusters: implications for planetary systems in the solar neighbourhood [PDF]

, 2007
The stars that populate the solar neighbourhood were formed in stellar clusters. Through N-body simulations of these clusters, we measure the rate of close encounters between stars. By monitoring the interaction histories of each star, we investigate the
Aarseth, Aarseth, Adams, Adams, Ahmad, Allen, Bastian, Binney, Chambers, Chambers, Daniel Malmberg, Davies, De La Fuente Marcos, Desidera, Dougal Mackey, Duquennoy, Faber, Francesca De Angeli, Goodwin, Heggie, Heggie, Heggie, Holman, Hurley, Hurley, Innanen, Kharchenko, Kozai, Kroupa, Kustaanheimo, Lada, Lamers, Laughlin, Luhman, Makino, Malmberg, Marcy, Mark I. Wilkinson, Melvyn B. Davies, Pfahl, Pfahl, Plummer, Porras, Portegies Zwart, Ross P. Church, Spurzem   +45 more
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Relativistic numerical model for close neutron-star binaries [PDF]

Physical Review D, 1996
We describe a numerical method for calculating the (3+1) dimensional general relativistic hydrodynamics of a coalescing neutron-star binary system. The relativistic field equations are solved at each time slice with a spatial 3-metric chosen to be conformally flat.
Wilson, J. R., Mathews, G. J., Marronetti, P.   +2 more
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A transiting companion to the eclipsing binary KIC002856960 [PDF]

, 2012
We present an early result from an automated search of Kepler eclipsing binary systems for circumbinary companions. An intriguing tertiary signal has been discovered in the short period eclipsing binary KIC002856960. This third body leads to transit-like
Batalha, Brown, Bryson, C. A. Watson, Carter, D. Armstrong, D. Pollacco, Derekas, Doyle, F. Faedi, H. M. Cegla, Haas, I. Skillen, Irwin, J. Burton, J. McCormac, Koch, Lada, Morales, P. McDaid, Prsa, Quintana, Slawson, Steffen, Torres, Welsh, Y. Gómez Maqueo Chew   +26 more
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Merger Conditions of Population III Protostar Binaries

The Astrophysical Journal, 2023
Massive close binary stars with extremely small separations have been observed, and they are possible progenitors of gravitational-wave sources. The evolution of massive binaries in the protostellar accretion stage is key to understanding their formation
Takanobu Kirihara, Hajime Susa, Takashi Hosokawa, Tomoya Kinugawa   +3 more
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Microlensing of close binary stars [PDF]

Monthly Notices of the Royal Astronomical Society, 2009
The gravity due to a multiple-mass system has a remarkable gravitational effect: the extreme magnification of background light sources along extended so-called caustic lines. This property has been the channel for some remarkable astrophysical discoveries over the past decade, including the detection and characterisation of extra-solar planets, the ...
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Classification of close binary stars using recurrence networks [PDF]

Chaos: An Interdisciplinary Journal of Nonlinear Science, 2019
Close binary stars are binary stars where the component stars are close enough such that they can exchange mass and/or energy. They are subdivided into semidetached, overcontact, or ellipsoidal binary stars. A challenging problem in the context of close binary stars is their classification into these subclasses based solely on their light curves ...
Sandip V. George, R. Misra, G. Ambika
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