Results 31 to 40 of about 159,898 (288)

ELM of ELM-WD: An Extremely-low-mass Hot Star Discovered in LAMOST Survey

open access: yesThe Astronomical Journal, 2023
The extremely-low-mass white dwarfs (ELM WDs) and pre-ELM WDs are helium-core white dwarfs with mass
Hailong Yuan (袁海龙)   +9 more
doaj   +1 more source

Fast rotating stars resulting from binary evolution will often appear to be single [PDF]

open access: yes, 2010
Rapidly rotating stars are readily produced in binary systems. An accreting star in a binary system can be spun up by mass accretion and quickly approach the break-up limit.
Cantiello   +6 more
core   +3 more sources

POSYDON: A General-purpose Population Synthesis Code with Detailed Binary-evolution Simulations

open access: yesThe Astrophysical Journal Supplement Series, 2023
Most massive stars are members of a binary or a higher-order stellar system, where the presence of a binary companion can decisively alter their evolution via binary interactions. Interacting binaries are also important astrophysical laboratories for the
Tassos Fragos   +24 more
doaj   +1 more source

Probing the models: Abundances for high-mass stars in binaries [PDF]

open access: yes, 2013
The complexity of composite spectra of close binary star system makes study of the spectra of their component stars extremely difficult. For this reason there exists very little information on the photospheric chemical composition of stars in close ...
Pavlovski, K., Southworth, J.
core   +1 more source

Close encounters of star–black hole binaries with single stars

open access: yesMonthly Notices of the Royal Astronomical Society, 2023
ABSTRACT Multibody dynamical interactions of binaries with other objects are one of the main driving mechanisms for the evolution of star clusters. It is thus important to bring our understanding of three-body interactions beyond the commonly employed point-particle approximation.
Taeho Ryu   +5 more
openaire   +4 more sources

High-velocity stars from the interaction of a globular cluster and a massive black hole binary [PDF]

open access: yes, 2016
High-velocity stars are usually thought to be the dynamical product of the interaction of binary systems with supermassive black holes. In this paper, we investigate a particular mechanism of production of high-velocity stars as due to the close ...
CAPUZZO DOLCETTA, Roberto Angelo   +1 more
core   +1 more source

Irrotational binary neutron stars in quasiequilibrium [PDF]

open access: yes, 1999
We report on numerical results from an independent formalism to describe the quasi-equilibrium structure of nonsynchronous binary neutron stars in general relativity.
D. Lai   +25 more
core   +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

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

Computation of gravitational waves from inspiraling binary neutron stars in quasiequilibrium circular orbits : Formulation and calibration [PDF]

open access: yes, 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

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