Results 41 to 50 of about 307,393 (221)

Contact Binary Stars [PDF]

open access: yesInternational Astronomical Union Colloquium, 1983
Abstract:Ultraviolet and X-ray surveys of the W Ursae Majoris type stars are reviewed. These systems exhibit extended coronas and transition regions that are confined close to the optically determined surfaces. Correlations of X-ray activity with period or rotational velocity indicate a turn-over or saturation of emission at the short periods or high ...
openaire   +2 more sources

Coalescing binary neutron stars [PDF]

open access: yesClassical and Quantum Gravity, 1999
Coalescing compact binaries with neutron star or black hole components provide the most promising sources of gravitational radiation for detection by the LIGO/VIRGO/GEO/TAMA laser interferometers now under construction. This fact has motivated several different theoretical studies of the inspiral and hydrodynamic merging of compact binaries.
Stuart L. Shapiro, Frederic A. Rasio
openaire   +3 more sources

Be Stars as Interacting Binaries [PDF]

open access: yesSymposium - International Astronomical Union, 1982
At the last IAU Symposium on Be stars held in Bass River, MA in 1975, several of us (including P. Harmanec, M. Plavec, R.S. Polidan, and myself) suggested that Be stars are mass transfer binaries and represent the higher mass counterparts to the familiar Algol systems.
openaire   +2 more sources

Binary Stars and SS433 [PDF]

open access: yesInternational Astronomical Union Colloquium, 1982
AbstractSome of tile most unique experimental features of the source SS433 are outlined as well as some implications of the theoretical models of this source.
openaire   +2 more sources

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.
Oleg Malkov   +2 more
openaire   +3 more sources

A Brief Overview of Black Hole-Neutron Star Mergers

open access: yesFrontiers in Astronomy and Space Sciences, 2020
Of the three main types of binaries detectable through ground-based gravitational wave observations, black hole-neutron star (BHNS) mergers remain the most elusive.
Francois Foucart
doaj   +1 more source

Evolution of the binary population in young dense star clusters

open access: yes, 2011
Context: Field stars are not always single stars, but can often be found in bound double systems. Since binary frequencies in the birth places of stars, young embedded clusters, are sometimes even higher than on average the question arises of how binary ...
Aarseth   +48 more
core   +1 more source

A New Binary Star System of EW Type in Draco: GSC 03905-01870

open access: yes, 2018
Discovery of a new binary star system (GSC 03905-01870 = USNO-B1.0 1431-0327922 = UCAC4 716-059522) in the Draco constellation is presented. It was discovered during a search for previously unreported eclipsing binary stars through the ASAS-SN database ...
Barquin, Salvador
core   +3 more sources

Rapid Localization of Gravitational Wave Sources from Compact Binary Coalescences Using Deep Learning

open access: yesThe Astrophysical Journal, 2023
The mergers of neutron star–neutron star and neutron star–black hole binaries (NSBHs) are the most promising gravitational wave (GW) events with electromagnetic (EM) counterparts.
Chayan Chatterjee   +5 more
doaj   +1 more source

AGB Stars in Binaries and Their Progeny [PDF]

open access: yesSymposium - International Astronomical Union, 1999
An AGB star in a binary system is likely to pollute its companion with carbon- and s-process-rich matter. After the AGB star has faded into an unconspicuous white dwarf, the polluted companion enters the zoo of stars with chemical peculiarities. In this paper, the progeny of AGB stars in binary systems are identified among existing spectroscopic ...
openaire   +4 more sources

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