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Radio emission from symbiotic stars - A binary model

open access: yesAstrophysical Journal, 1984
We examine a binary model for symbiotic stars to account for their radio properties. The system is comprised of a cool, mass-losing star and a hot companion. Radio emission arises in the portion of the stellar wind photo-ionized by the hot star. Computer simulations for the case of uniform mass loss at constant velocity show that when less than half ...
E R Seaquist
exaly   +2 more sources

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

Evolved Stars As Donors In Symbiotic Binaries [PDF]

open access: yesEAS Publications Series, 2015
This contribution is focused on the role of cool giants in symbiotic binaries. Especially, we pay attention to their mass-loss rates and the wind mass-transfer onto their compact accretors.
Skopal, A., Sekeras, M., Shagatova, N.
openaire   +2 more sources

A survey of the Local Group of galaxies for symbiotic binary stars – I. First detection of symbiotic stars in M33 [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2016
We present and discuss initial selection criteria and first results in M33 from a systematic search for extragalactic symbiotic stars. We show that the presence of diffuse interstellar gas emission can significantly contaminate the spectra of symbiotic star candidates.
Mikolajewska, Joanna   +4 more
openaire   +2 more sources

The Inner Nebula and Central Binary of the Symbiotic Star HM Sagittae [PDF]

open access: yesThe Astrophysical Journal, 2001
We present contemporaneous HST WFPC2 and VLA observations of the symbiotic nova HM Sge. We identify a number of discreet features at spatial scales smaller than approximately 0.1 arcsec embedded in the extended nebula, with radio and optical emission well correlated in the inner 1 arcsec.
Eyres, S. P. S.   +4 more
openaire   +2 more sources

CHARACTERIZATION OF THE MOST LUMINOUS STAR IN M33: A SUPER SYMBIOTIC BINARY [PDF]

open access: yesThe Astrophysical Journal, 2015
17 pages, 2 figures, to appear in ...
Joanna Mikołajewska   +3 more
openaire   +2 more sources

The Emergence of a Neutral Wind Region in the Orbital Plane of Symbiotic Binaries during Their Outbursts

open access: yesThe Astronomical Journal, 2023
Accretion of mass onto a white dwarf (WD) in a binary system can lead to stellar explosions. If a WD accretes from stellar wind of a distant evolved giant in a symbiotic binary, it can undergo occasional outbursts in which it brightens by several ...
Augustin Skopal
doaj   +1 more source

A Binary Model for the Symbiotic Star V 1329 Cygni [PDF]

open access: yesSymposium - International Astronomical Union, 1980
This emission-line object was discovered by Kohoutek in 1969. Its light curve was subsequently reconstructed since 1891. Before 1964, the object fluctuated at around 15m, with occasional deep minima as deep as 2.3m. Its spectrum was late M. In 1964 the object brightened up to 14m and then it reached 11.5m in the middle of the year 1966.
D. Chochol, J. Grygar, L. Hric
openaire   +1 more source

Comprehensive Analysis of a Symbiotic Candidate V503 Her

open access: yesThe Astronomical Journal, 2023
V503 Her was previously proposed as an eclipsing symbiotic candidate based on photometric behavior and spectroscopic appearance indicating the composite optical spectrum.
Jaroslav Merc   +12 more
doaj   +1 more source

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