Results 61 to 70 of about 237,410 (372)

‘Swinging Dipoles’ in Magnetic Close Binary Stars [PDF]

open access: yesInternational 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.
openaire   +1 more source

A transiting companion to the eclipsing binary KIC002856960 [PDF]

open access: yes, 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   +26 more
core   +2 more sources

Relativistic numerical model for close neutron-star binaries [PDF]

open access: yesPhysical 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.   +2 more
openaire   +3 more sources

Detached white-dwarf close-binary stars -- CV's extended family [PDF]

open access: yes, 1999
I review detached binaries consisting of white dwarfs with either other white dwarfs or low mass main-sequence stars in tight orbits around them. Orbital periods have been measured for 15 white dwarf/white dwarf systems and 22 white dwarf/M dwarf systems.
Marsh, T. R.
core   +3 more sources

KEPLER ECLIPSING BINARY STARS. IV. PRECISE ECLIPSE TIMES FOR CLOSE BINARIES AND IDENTIFICATION OF CANDIDATE THREE-BODY SYSTEMS [PDF]

open access: yes, 2013
We present a catalog of precise eclipse times and analysis of third-body signals among 1279 close binaries in the latest Kepler Eclipsing Binary Catalog.
K. Conroy   +5 more
semanticscholar   +1 more source

Orbital Decay in an Accreting and Eclipsing 13.7 Minute Orbital Period Binary with a Luminous Donor

open access: yesThe Astrophysical Journal Letters, 2023
We report the discovery of ZTF J0127+5258, a compact mass-transferring binary with an orbital period of 13.7 minutes. The system contains a white dwarf accretor, which likely originated as a post–common envelope carbon–oxygen (CO) white dwarf, and a warm
Kevin B. Burdge   +26 more
doaj   +1 more source

Microlensing of close binary stars [PDF]

open access: yesMonthly 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 ...
openaire   +2 more sources

Radial Velocity Studies of Close Binary Stars. IX. [PDF]

open access: yesThe Astronomical Journal, 2004
17+ pages, 2 tables, 4 ...
Pych, Wojtek   +10 more
openaire   +3 more sources

Massive close binaries II

open access: yes, 2003
In the present review we summarize direct and indirect evidence that the massive close binary frequency is very large. We then discuss the binary evolutionary processes and we present a general massive close binary evolutionary scheme.
Vanbeveren, Dany
core   +2 more sources

Effects of Close Binary Evolution on the Main-sequence Morphology of Young Star Clusters [PDF]

open access: yesAstrophysical Journal, 2019
Star clusters are the building blocks of galaxies. They are composed of stars of nearly equal age and chemical composition, allowing us to use them as chronometers and as testbeds for gauging stellar evolution.
Chen Wang   +6 more
semanticscholar   +1 more source

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