Results 21 to 30 of about 200,082 (276)

Analysis of the eclipsing binaries in the LMC discovered by OGLE: Period distribution and frequency of the short-period binaries [PDF]

open access: yes, 2006
We review the results of our analysis of the OGLE LMC eclipsing binaries (Mazeh, Tamuz & North 2006), using EBAS -- Eclipsing Binary Automated Solver, an automated algorithm to fit lightcurves of eclipsing binaries (Tamuz, Mazeh & North 2006).
Duquennoy   +10 more
core   +2 more sources

Constraining the Mass Loss Geometry of Beta Lyrae [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2012
Massive binary stars lose mass by two mechanisms: jet-driven mass loss during periods of active mass transfer and by wind-driven mass loss. Beta Lyrae is an eclipsing, semi-detached binary whose state of active mass transfer provides a unique ...
Jamie R. Lomax
doaj   +1 more source

The LISA Gravitational Wave Foreground: A Study of Double White Dwarfs [PDF]

open access: yes, 2010
Double white dwarfs are expected to be a source of confusion-limited noise for the future gravitational wave observatory LISA. In a specific frequency range, this 'foreground noise' is predicted to rise above the instrumental noise and hinder the ...
Abbott   +53 more
core   +8 more sources

Improved Detection Rates for Close Binaries Via Astrometric Observations of Gravitational Microlensing Events [PDF]

open access: yes, 1999
In addition to constructing a Galactic matter mass function free from the bias induced by the hydrogen-burning limit, gravitational microlensing allows one to construct a mass function which is less affected by the problem of unresolved binaries (Gaudi &
Alard C.   +12 more
core   +3 more sources

Close approach during hard binary-binary scattering [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1996
13 pages including 13 ps figures.
Bacon, D., Sigurdsson, S., Davies, M. B.
openaire   +2 more sources

Formation of Neutral Disk-Like Zone Around the Active Hot Stars in Symbiotic Binaries

open access: yesOpen Astronomy, 2012
In this contribution we present the ionization structure in the enhanced wind from the hot star in symbiotic binaries during active phases. Rotation of the hot star leads to the compression of the outflowing material towards its equatorial plane.
Cariková Z., Skopal A.
doaj   +1 more source

Variable binaries and variables in binaries in the Binary star DataBase [PDF]

open access: yesResearch in Astronomy and Astrophysics, 2019
The BDB, Binary star DataBase http://bdb.inasan.ru combines data of the catalogues of binary and multiple stars of all observational types. There is a number of ways for variable stars to form or to be a part of binary or multiple systems. We describe how such stars are represented in the database.
Kovaleva, D., Malkov, O., Kaygorodov, P.
openaire   +2 more sources

Contact Binaries [PDF]

open access: yesSymposium - International Astronomical Union, 1986
The most promising mechanism for the formation of contact binaries involves the orbital angular momentum loss (AML) and the resulting orbital decay of detached but close synchronized binaries. The efficiency of magnetic wind braking should abruptly decrease upon formation of a contact binary because of the transformation into a system of earlier ...
openaire   +1 more source

An additional pulsating mode (7.35 mHz) and pulsations timing variations of PG 1613+426

open access: yesOpen Astronomy, 2017
We present the detection of an additional pulsation mode (7.35 mHz) of a subdwarf B star, PG 1613+426, and periodic Observed minus Calculated (O-C) variations for two existing pulsations. PG 1613+426 is near the hot end of the sdB instability strip.
Otani Tomomi   +5 more
doaj   +1 more source

Constraining Roche-Lobe Overflow Models Using the Hot-Subdwarf Wide Binary Population

open access: yesOpen Astronomy, 2017
One of the important issues regarding the final evolution of stars is the impact of binarity. A rich zoo of peculiar, evolved objects are born from the interaction between the loosely bound envelope of a giant, and the gravitational pull of a companion ...
Vos Joris, Vučković Maja
doaj   +1 more source

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