Results 81 to 90 of about 563,075 (357)
Computation of gravitational waves from inspiraling binary neutron stars in quasiequilibrium circular orbits : Formulation and calibration [PDF]
, 2001 Gravitational waves from binary neutron stars in quasiequilibrium circular orbits are computed using an approximate method which we propose in this paper. In the first step of this method, we prepare general relativistic irrotational binary neutron stars
A. G. Wiseman +53 more
core +2 more sources
KEPLER ECLIPSING BINARY STARS. IV. PRECISE ECLIPSE TIMES FOR CLOSE BINARIES AND IDENTIFICATION OF CANDIDATE THREE-BODY SYSTEMS [PDF]
, 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
On the Anticorrelation between Duration and Redshift in Gamma-Ray Bursts
The Astrophysical Journal, 2023 For gamma-ray bursts (GRBs) with durations greater than two seconds (so-called long GRBs), the intrinsic prompt gamma-ray emission appears, on average, to last longer for bursts at lower redshifts.
Nicole Lloyd-Ronning +6 more
doaj +1 more source
Effects of Close Binary Evolution on the Main-sequence Morphology of Young Star Clusters [PDF]
Astrophysical 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
Close-Binary and Pulsating Central Stars [PDF]
Symposium - International Astronomical Union, 1989 As a result of photometric-monitoring studies, 7 planetary-nebula nuclei are now known to be binaries with orbital periods less than one day. These systems were probably produced via a common-envelope interaction, during which a wide pair was converted to a close binary surrounded by an ejected red-giant envelope.
openaire +2 more sources
Star formation environments and the distribution of binary separations [PDF]
, 1998 We have carried out K-band speckle observations of a sample of 114 X-ray selected weak-line T Tauri stars in the nearby Scorpius-Centaurus OB association. We find that for binary T Tauri stars closely associated to the early type stars in Upper Scorpius, the youngest subgroup of the OB association, the peak in the distribution of binary separations is ...
arxiv +1 more source
Tidal effects in close binary stars [PDF]
Symposium - International Astronomical Union, 1984 This review addresses the question of what can be learned about the stellar interiors from the study of the tidal effects in close binary stars.
openaire +1 more source
Population Ecology, EarlyView.In this study, we compared three methods for kinship identification using different algorithms in samples of wild Pacific bluefin tuna and generated genotyping data. The three methods resulted in different numbers of inferred kinship pairs for both generated and actual data. Particularly for the half‐sibling pairs, considerable number of false‐positive
Yohei Tsukahara +5 more
wiley +1 more source
PHOTOMETRICAL STUDY OF OVERCONTACT BINARY SYSTEM V859Cyg
Odessa Astronomical Publications, 2016 Wepresent the results of photometrical research of close binary system V859Cyg with possible period variations. The light curve of the star was constructed using V-band magnitudes, obtainedin 2007, 2009, 2014 years in Kalinenkov Astronomical Observatory
E. A. Panko +3 more
doaj +1 more source
On OB-type close binary stars [PDF]
Monthly Notices of the Royal Astronomical Society, 1987 On presente une compilation des donnees de masses, rayons, temperatures effectives et luminosites pour un ensemble de 31 binaires de type spectral O-B5. Ces donnees sont comparees aux resultats de calculs d'evolutions stellaires pour des etoiles massives avec parametrages de la perte de masse par vent stellaire et surdeversement ...
R. W. Hilditch, S. A. Bell
openaire +2 more sources