Results 31 to 40 of about 563,075 (357)

Binary central stars of planetary nebulae [PDF]

open access: yesarXiv, 2006
This paper reviews our knowledge on binary central stars of planetary nebulae and presents some personal opinions regarding their evolution. Three types of interactions are distinguished: type I, where the binary companion induces the mass loss; type II, where it shapes the mass loss but does not enhance it; type III, where a wide orbit causes the ...
Zijlstra, Albert A.
arxiv   +3 more sources

The origin and evolution of magnetic white dwarfs in close binary stars [PDF]

open access: yesNature Astronomy, 2021
The origin of magnetic fields in white dwarfs remains a fundamental unresolved problem in stellar astrophysics. In particular, the very different fractions of strongly (more than about a megagauss) magnetic white dwarfs in evolutionarily linked ...
M. Schreiber   +4 more
semanticscholar   +1 more source

Neutron Stars in Close Binary Systems

open access: bronzeThe Astrophysical Journal, 1974
J. C. Wheeler, C. F. McKee, M. Lecar
openalex   +3 more sources

The Evolution of Massive Binary Stars [PDF]

open access: yesAnnual Review of Astronomy and Astrophysics, 2023
Massive stars play a major role in the evolution of their host galaxies and serve as important probes of the distant Universe. It has been established that the majority of massive stars reside in close binaries and interact with their companion stars ...
P. Marchant, J. Bodensteiner
semanticscholar   +1 more source

Photometric study of close binary stars in the M35, M67, and M71 Galactic clusters [PDF]

open access: yesContributions of the Astronomical Observatory Skalnaté Pleso, 2020
We obtained new multicolour photometry of close binary stars in the young open cluster M35, the solar-age open cluster M67, and the globular cluster M71. New observations have been carried out at the TUBITAK National Observatory (TUG) by using the 100cm (
D. Koccak, T. .Iccli, K. Yakut
semanticscholar   +1 more source

Close Binary Companions to APOGEE DR16 Stars: 20,000 Binary-star Systems Across the Color–Magnitude Diagram [PDF]

open access: yesAstrophysical Journal, 2020
Many problems in contemporary astrophysics—from understanding the formation of black holes to untangling the chemical evolution of galaxies—rely on knowledge about binary stars.
A. Price-Whelan   +23 more
semanticscholar   +1 more source

V1507 CYGNI (HD187399): A Highly Evolved, Enigmatic Interacting Binary System with an Eccentric Orbit

open access: yesThe Astronomical Journal, 2023
The properties of the interacting, eccentric orbit binary V1507 Cyg (HD187399) are examined with spectra that cover wavelengths from 0.63–0.68 μ m. The spectrum of the brightest star is similar to that of the B8 I star β Ori, although with absorption ...
T. J. Davidge
doaj   +1 more source

NY Bootes: An Active Deep and Low-mass-ratio Contact Binary with a Cool Companion in a Hierarchical Triple System

open access: yesThe Astrophysical Journal, 2023
The first detailed photometric and spectroscopic study of G-type short-period binary NY Boo is presented. The radial velocity curve was obtained by the cross-correlation function (CCF) method based on LAMOST and SDSS spectra, which derived its mass ratio
Fangbin Meng   +5 more
doaj   +1 more source

The spins of compact objects born from helium stars in binary systems [PDF]

open access: yes, 2022
The angular momentum (AM) content of massive stellar cores helps to determine the natal spin rates of neutron stars and black holes. Asteroseismic measurements of low-mass stars have proven that stellar cores rotate slower than predicted by most prior ...
J. Fuller, Wenbin Lu
semanticscholar   +1 more source

The Close Binary Fraction of Solar-type Stars Is Strongly Anticorrelated with Metallicity [PDF]

open access: yesAstrophysical Journal, 2018
There is now strong evidence that the close binary fraction (P < 104 days; a < 10 au) of solar-type stars (M1 ≈ 0.6–1.5 ) decreases significantly with metallicity. Although early surveys showed that the observed spectroscopic binary (SB) fractions in the
M. Moe, K. Kratter, C. Badenes
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy