Results 101 to 110 of about 565,141 (258)

BLACK HOLE X-RAY BINARIES

open access: yesOdessa Astronomical Publications, 2017
Masses of black holes in 13 X-ray binary systems determined by different authors are summarized and compared with those of WR stars in close binary systems, which can be considered as progenitors of relativistic objects.
A. M. Cherepashchuk
doaj   +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

Radial Velocity Studies of Southern Close Binary Stars. II. Spring/Summer Systems [PDF]

open access: yes, 2006
Radial velocity measurements and sine-curve fits to the orbital velocity variations are presented for 14 close binary stars, S Ant, TT Cet, TW Cet, AA Cet, RW Dor, UX Eri, YY Eri, BV Eri, CT Eri, SZ Hor, AD Phe, TY Pup, HI Pup, and TZ Pyx. All are double-
H. Duerbeck, S. Rucinski
semanticscholar   +1 more source

The Central Density of Neutron Stars in Close Binaries [PDF]

open access: yesPhysical Review Letters, 1997
Recent numerical simulations of coalescing binary neutron stars conducted by Wilson, Mathews and Marronetti (WMM) show a rising central energy density of the stars as the orbital separation shrinks, i.e. the stars are individually crushed as they near coalescence.
openaire   +2 more sources

Candidate Ap stars in close binary systems [PDF]

open access: yesProceedings of the International Astronomical Union, 2013
AbstractShort period binary systems containing magnetic Ap stars are anomalously rare. This apparent anomaly may provide insight into the origin of the magnetic fields in theses stars. As an early investigation of this, we observed three close binary systems that have been proposed to host Ap stars.
C. P. Folsom   +6 more
openaire   +3 more sources

Effects of XUV radiation on circumbinary planets [PDF]

open access: yes, 2014
Several circumbinary planets have recently been discovered. The orbit of a planet around a binary stellar system poses several dynamic constraints. The effects that radiation from the host stars may have on the planet atmospheres must be considered ...
Desidera, S.   +2 more
core   +1 more source

ELECTRONIC TEXTBOOK FOR AMATEUR ASTRONOMERS AND STUDENTS "Binary stars and their evolution"

open access: yesOdessa Astronomical Publications, 2017
Electronic textbook for members and supervisors of the Youth Academy of Sciences; schoolars and teachers; students of the first courses. Total volume of the printed version is 86pp. The textbook is devoted to 100-th Anniversary of Prof.
L. L. Chinarova
doaj   +1 more source

TYC 3340-2437-1: A Quadruple System with a Massive Star

open access: yesThe Astrophysical Journal
Hierarchical massive quadruple systems are ideal laboratories for examining the theories of star formation, dynamical evolution, and stellar evolution.
Jiao Li   +13 more
doaj   +1 more source

Mass Transfer in Eccentric Orbits with Self-consistent Stellar Evolution

open access: yesThe Astrophysical Journal
We investigate Roche lobe overflow mass transfer (MT) in eccentric binary systems between stars and compact objects (COs), modeling the coupled evolution of both the star and the orbit due to eccentric MT (eMT) in a self-consistent framework.
Kyle Akira Rocha   +14 more
doaj   +1 more source

Discovery of close binary central stars in the planetary nebulae NGC 6326 and NGC 6778 [PDF]

open access: yes, 2011
Original article can be found at : http://www.aanda.org/ Copyright The European Southern ...
B. Miszalski   +7 more
semanticscholar   +1 more source

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