Results 21 to 30 of about 2,766,286 (295)

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

42. Close Binary Stars [PDF]

open access: yesTransactions of the International Astronomical Union, 1985
Research on close binary systems has continued at a high level during the past triennium, although the rate of growth is noticeably slower – probably reflecting the cutbacks in funds to which many of us are subject. There have also been changes of emphasis within the field, which are commented on in the pages that follow.
A. H. Batten   +12 more
openaire   +1 more source

New spectroscopic binary companions of giant stars and updated metallicity distribution for binary systems [PDF]

open access: yes, 2016
We report the discovery of 24 spectroscopic binary companions to giant stars. We fully constrain the orbital solution for 6 of these systems. We cannot unambiguously derive the orbital elements for the remaining stars because the phase coverage is ...
Vanzi, L.   +49 more
core   +1 more source

New Close Binary Central Stars of Planetary Nebulae from Gaia DR3 Epoch Photometry. [PDF]

open access: yes, 2022
Close binary interactions perform a key role in the formation and shaping of planetary nebulae (PNe). However only a small fraction of Galactic PNe are known to host close binary systems.
Chornay, N., Walton, N. A.
core   +4 more sources

RADIAL VELOCITY STUDIES OF CLOSE BINARY STARS. XV [PDF]

open access: yesThe Astronomical Journal, 2006
submitted to ...
Pribulla, Theodor   +10 more
openaire   +8 more sources

Super slowly spinning stars in close binaries

open access: yesMonthly Notices of the Royal Astronomical Society: Letters, 2023
ABSTRACT Stars in short-period binaries typically have spins that are aligned and synchronized with the orbit of their companion. In triple systems, however, the combination of spin and orbital precession can cause the star’s rotation to evolve to a highly misaligned and sub-synchronous equilibrium known as a Cassini state. We identify a
Jim Fuller, Catherine Felce
openaire   +2 more sources

CLOSE BINARY SYSTEMS ON LATE EVOLUTIONARY STAGES

open access: yesOdessa Astronomical Publications, 2017
Observational and theoretical progress in investigations of close binary stars allow to understand the nature and evolution of many types of close binary systems containing peculiar components: Wolf-Rayet stars, white dwarfs neutron stars and black holes.
A. M. Cherepashchuk
doaj   +1 more source

Gravitoastronomy with neutron stars [PDF]

open access: yes, 2004
Recent advances in gravitational wave detectors mean that we can start to make astrophysically important statements about the physics of neutron stars based on observed upper limits to their gravitational luminosity.
Woan, G., Graham Woan
core   +1 more source

THE CLOSE BINARY FRACTION OF DWARF M STARS [PDF]

open access: yesThe Astrophysical Journal, 2011
We describe a search for close spectroscopic dwarf M star binaries using data from the Sloan Digital Sky Survey (SDSS) to address the question of the rate of occurrence of multiplicity in M dwarfs. We use a template fitting technique to measure radial velocities from 145,888 individual spectra obtained for a magnitude-limited sample of 39,543 M dwarfs.
Clark, Benjamin M.   +2 more
openaire   +3 more sources

Discovery of four close binary stars in Sagittarius [PDF]

open access: yes, 2002
This Note is the second in a series of Notes where we report new variable stars discovered during our extensive CCD monitoring program of the black hole binary V4641 Sgr (SAX J1819.3-2525)(Orosz et al., 2001).
Brogt, E.   +5 more
core   +1 more source

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