منابع مشابه
Contact Binary Stars in Microlensing Surveys
A brief summary of properties of the contact binaries is presented, with the goal to stress the unsolved problems of their formation and evolution as well as their potential contribution to studies of Galactic stellar populations. The first results from the OGLE survey, where the contact binaries contribute a full two thirds among 933 eclipsing binary stars, are presented. 1 Properties of conta...
متن کاملA ROSAT Survey of Contact Binary Stars
Contact binary stars are common variable stars which are all believed to emit relatively large fluxes of x-rays. In this work we combine a large new sample of contact binary stars derived from the ROTSE-I telescope with x-ray data from the ROSAT All-Sky Survey (RASS) to estimate the x-ray volume emissivity of contact binary stars in the galaxy. We obtained x-ray fluxes for 140 contact binaries ...
متن کاملContact Binary Stars in the ROTSE-I Survey
In this work I present a description of a large new sample of contact binary stars extracted in a uniform manner from sky patrol data taken by the ROTSE-I telescope. Extensive ROTSE-I light curve data is combined with J, H, and K band near-infrared data taken from the Two Micron All-Sky Survey (2MASS) to add color information. Contact binaries candidates are selected using the observed period-c...
متن کاملA Catalog of 1022 Bright Contact Binary Stars
In this work we describe a large new sample of contact binary stars extracted in a uniformmanner from sky patrol data taken by theROTSE-I telescope. ExtensiveROTSE-I light-curve data are combinedwith J-,H-, andK-band near-infrared data taken from theTwoMicronAll Sky Survey to add color information. Contact binary candidates are selected using the observed period-color relation. Candidates are c...
متن کاملCoalescing Binary Neutron Stars
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. Analytic analyses of the inspiral waveforms have been...
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ژورنال
عنوان ژورنال: International Astronomical Union Colloquium
سال: 1983
ISSN: 0252-9211
DOI: 10.1017/s0252921100096470