Results 21 to 30 of about 55,563 (297)

The impact of binary-star yields on the spectra of galaxies [PDF]

open access: yes, 2009
One of the complexities in modelling integrated spectra of stellar populations is the effect of interacting binary stars besides Type Ia supernovae (SNeIa).
Izzard, R. G., Ocvirk, P., Sansom, A. E.
core   +2 more sources

The origin of single radio pulsars

open access: yes, 1999
By comparing relative rates of supernovae versus formation rates of single radio pulsars, recycled pulsars, binary pulsars and X-ray binaries we put strong limits on the progenitors of radio pulsars and on the requirement of an asymmetry in the supernova.
Heuvel, Edward van den   +1 more
core   +4 more sources

Binary Interactions in Star Clusters [PDF]

open access: yesSymposium - International Astronomical Union, 1988
Over the past decade, a very considerable amount of effort in stellar dynamics has gone into the study of interactions between binary systems and other stars. The asymptotic analytic results obtained by Heggie (1975) for binary-single star encounters have been largely confirmed and extended by later numerical experiments (Hills 1975, Hut and Bahcall ...
openaire   +1 more source

Quantitative spectroscopy of close binary stars [PDF]

open access: yes, 2011
The method of spectral disentangling has now created the opportunity for studying the chemical composition in previously inaccessible components of binary and multiple stars.
Brogaard   +35 more
core   +1 more source

Be Stars as Interacting Binaries [PDF]

open access: yesSymposium - International Astronomical Union, 1982
At the last IAU Symposium on Be stars held in Bass River, MA in 1975, several of us (including P. Harmanec, M. Plavec, R.S. Polidan, and myself) suggested that Be stars are mass transfer binaries and represent the higher mass counterparts to the familiar Algol systems.
openaire   +1 more source

Dynamically Forming Extremely Low-mass White Dwarf Binaries in Wide Orbits

open access: yesThe Astrophysical Journal, 2023
The detection of a 0.2 M _⊙ extremely low-mass white dwarf (EW) in a wide orbit ( P _orb ≈ 450 days) with a 1.1 M _⊙ main-sequence companion, KIC 8145411, challenges our current understanding of how EWs form. The traditional channel for EW formation, via
Ambreesh Khurana   +2 more
doaj   +1 more source

"Dark Matter" in Accretion Disks [PDF]

open access: yes, 2008
Using Spitzer Space Telescope photometric observations of the eclipsing, interacting binary WZ Sge, we have discovered that the accretion disk is far more complex than previously believed.
Brinkworth, C.   +6 more
core   +3 more sources

Interacting Binaries as Be Stars [PDF]

open access: yesInternational Astronomical Union Colloquium, 1987
AbstractSemidetached close binary stars of the Algol type often have primary components of spectral type A0 or earlier and display emission at Hα (sometimes also at higher Balmer lines). They are therefore Be stars. Many binaries of this type are not eclipsing and must look like “ordinary” Be stars.
openaire   +1 more source

A Mini Atlas of H-Band Spectra of Southern Symbiotic Stars

open access: yesGalaxies, 2023
Symbiotic stars are interacting binary systems composed of an evolved star (generally a late-type red giant) and a degenerate or dwarf companion in orbit close enough for mass transfer to occur. Understanding the status of the late-type star is important
Paula Esther Marchiano   +6 more
doaj   +1 more source

A dusty pinwheel nebula around the massive star WR 104 [PDF]

open access: yes, 1999
Wolf-Rayet (WR) stars are luminous massive blue stars thought to be immediate precursors to the supernova terminating their brief lives. The existence of dust shells around such stars has been enigmatic since their discovery some 30 years ago; the ...
AF Moffat   +24 more
core   +2 more sources

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