Results 11 to 20 of about 480,931 (306)

Interacting Binary White Dwarf Stars [PDF]

open access: bronzeSymposium - International Astronomical Union, 1992
This group of stars consists of 4 systems, also called helium cataclysmics. Three of them show photometric variations and have been studied by the Whole Earth Telescope (WET), which have revealed multiperiodic light curves showing the signature of g-mode non-radial pulsations on the accreting star.
J.‐E. Solheim
openalex   +2 more sources

Instabilities in Interacting Binary Stars

open access: green, 2017
Non-Stable Universe: Energetic Resources, Activity Phenomena and Evolutionary Processes, 19-23 September 2016, ed. Areg Mickaelian, Haik Harutyunian and Elena Nikoghosyan, Astronomical Society of the Pacific (ASP) Conference Series, 2017, in ...
И. Л. Андронов   +45 more
openalex   +5 more sources

Accretion discs in T Tauri stars and interacting binaries [PDF]

open access: green, 1996
This thesis explores aspects of the theory of accretion discs in two astrophysical environments; around young low-mass stars - T Tauri stars, and in mass transfer binaries. The importance of discs in our understanding of these systems is already well-established, and in this thesis I investigate extensions of the simplest theoretical disc models to ...
Philip J. Armitage
openalex   +4 more sources

A Spectroscopic and Interferometric Study of W Serpentis Stars. I. Circumbinary Outflow in the Interacting Binary W Serpentis

open access: goldThe Astrophysical Journal
W Serpentis is an eclipsing binary system and the prototype of the Serpentid class of variable stars. These are interacting binaries experiencing intense mass transfer and mass loss.
Katherine Shepard   +8 more
doaj   +2 more sources

"INTER-LONGITUDE ASTRONOMY" (ILA) PROJECT: CURRENT HIGHLIGHTS AND PERSPECTIVES. I. MAGNETIC VS. NON-MAGNETIC INTERACTING BINARY STARS

open access: closedOdessa Astronomical Publications, 2010
We present a review of highlights of our photometric and photo-polarimetric monitoring and mathematical modeling of interacting binary stars of different types classical, asynchronous, intermedi ate polars with 25 timescales corresponding to differ ent ...
I. L. Andronov   +25 more
doaj   +2 more sources

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

The Environments around W Serpentis Systems: Independent Limits on System Masses and Extended Envelopes

open access: yesThe Astronomical Journal, 2023
Information extracted from the Gaia Data Release 3 is used to examine the stellar contents within projected separations of 10 pc from eight close binary systems that are either classical W Serpentis systems or related objects.
T. J. Davidge
doaj   +1 more source

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

The Impact of Angular Momentum Loss on the Outcomes of Binary Mass Transfer

open access: yesThe Astrophysical Journal, 2023
We use the rapid binary population synthesis code COMPAS to investigate commonly used prescriptions for the determination of mass transfer stability in close binaries and the orbital separations after stable mass transfer.
Reinhold Willcox   +3 more
doaj   +1 more source

Stellar Properties of Observed Stars Stripped in Binaries in the Magellanic Clouds

open access: yesThe Astrophysical Journal, 2023
Massive stars (∼8–25 M _⊙ ) stripped of their hydrogen-rich envelopes via binary interaction are thought to be the main progenitors for merging neutron stars and stripped-envelope supernovae.
Y. Götberg   +8 more
doaj   +1 more source

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