Results 61 to 70 of about 81,830 (325)

THE CLOSE BINARY PROPERTIES OF MASSIVE STARS IN THE MILKY WAY AND LOW-METALLICITY MAGELLANIC CLOUDS [PDF]

open access: yes, 2013
In order to understand the rates and properties of Type Ia and Type Ib/c supernovae, X-ray binaries, gravitational wave sources, and gamma-ray bursts as a function of galactic environment and cosmic age, it is imperative that we measure how the close ...
M. Moe, R. Di Stefano
semanticscholar   +1 more source

The evolution of close helium star to neutron star binaries [PDF]

open access: yesSymposium - International Astronomical Union, 2003
We present the evolution of helium stars in binary systems with a 1.4 M⊙ neutron-star companion which will produce double neutron-star binaries, i.e., systems with helium stars more massive than 2.5 M⊙. We found that mass transfer from helium star less massive than ~ 3.3 M⊙ will end up in a common-envelope phase.
Dewi, J.D.M., Pols, O.R.
openaire   +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

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

A Systematic Search for Short-period Close White Dwarf Binary Candidates Based on Gaia EDR3 Catalog and Zwicky Transient Facility Data

open access: yesThe Astrophysical Journal Supplement Series, 2023
Galactic short-period close white dwarf binaries (CWDBs) are important objects for space-borne gravitational-wave (GW) detectors in the millihertz frequency bands.
Liangliang Ren   +6 more
doaj   +1 more source

Close-Binary and Pulsating Central Stars [PDF]

open access: yesSymposium - 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

Social context prevents heat hormetic effects against mutagens during fish development

open access: yesFEBS Letters, EarlyView.
This study shows that sublethal heat stress protects fish embryos against ultraviolet radiation, a concept known as ‘hormesis’. However, chemical stress transmission between fish embryos negates this protective effect. By providing evidence for the mechanistic molecular basis of heat stress hormesis and interindividual stress communication, this study ...
Lauric Feugere   +5 more
wiley   +1 more source

On the Anticorrelation between Duration and Redshift in Gamma-Ray Bursts

open access: yesThe 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

Density and Figure of Close Binary Stars [PDF]

open access: yesNature, 1901
WHEN One star revolves round another in an orbit of which the plane is coincident, or nearly so, with the line of sight, an eclipse of one star by the other will take place every revolution. We have, in such circumstances, the well-known phenomenon of Algol variation.
openaire   +2 more sources

Tidal effects in close binary stars [PDF]

open access: yesSymposium - 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

Home - About - Disclaimer - Privacy