V479 and: CV, LMXB, or symbiotic?

Diego González Buitrago, Gagik Tovmassian, Juan Echevarría, Sergey Zharikov, Takamitsu Miyaji, Andres Avilés, Gennady Valyavin

Resultado de la investigación: Capítulo del libro/informe/acta de congresoContribución a la conferencia

Resumen

V479 And is a 14.26 hour, close binary system, comprised of a G8-K0 star departing from the main sequence and a compact primary star accreting matter from the donor. The object is an X-ray source, modulated with the orbital period. This, and the presence of an intense He II line, leads us to speculate that the compact object is a magnetic white dwarf. However, we do not find strong constraints on the upper mass limit of the compact object, and we may have a neutron star in a low mass X-ray binary instead of a cataclysmic variable. The orbital period is certainly too short for the donor star to be an evolved giant star, so classifying this object as a symbiotic binary may be a big stretch; however there is an evidence that the mass transfer occurs via stellar winds, rather than through the L1 point of Roche filling secondary, a phenomenon more common for symbiotic stars.

Idioma originalInglés
Título de la publicación alojadaBinary Paths to Type Ia Supernovae Explosions
EditorialCambridge University Press
Páginas113-116
Número de páginas4
EdiciónS281
ISBN (versión impresa)9781107019812
DOI
EstadoPublicada - jul 2011

Serie de la publicación

NombreProceedings of the International Astronomical Union
NúmeroS281
Volumen7
ISSN (versión impresa)1743-9213
ISSN (versión digital)1743-9221

Huella dactilar

stars
symbiotic stars
orbitals
giant stars
cataclysmic variables
stellar winds
classifying
neutron stars
mass transfer
x rays

Citar esto

Buitrago, D. G., Tovmassian, G., Echevarría, J., Zharikov, S., Miyaji, T., Avilés, A., & Valyavin, G. (2011). V479 and: CV, LMXB, or symbiotic? En Binary Paths to Type Ia Supernovae Explosions (S281 ed., pp. 113-116). (Proceedings of the International Astronomical Union; Vol. 7, N.º S281). Cambridge University Press. https://doi.org/10.1017/S1743921312014780
Buitrago, Diego González ; Tovmassian, Gagik ; Echevarría, Juan ; Zharikov, Sergey ; Miyaji, Takamitsu ; Avilés, Andres ; Valyavin, Gennady. / V479 and : CV, LMXB, or symbiotic?. Binary Paths to Type Ia Supernovae Explosions. S281. ed. Cambridge University Press, 2011. pp. 113-116 (Proceedings of the International Astronomical Union; S281).
@inproceedings{02cd60cdb38a47f78d86a9d83248c6e8,
title = "V479 and: CV, LMXB, or symbiotic?",
abstract = "V479 And is a 14.26 hour, close binary system, comprised of a G8-K0 star departing from the main sequence and a compact primary star accreting matter from the donor. The object is an X-ray source, modulated with the orbital period. This, and the presence of an intense He II line, leads us to speculate that the compact object is a magnetic white dwarf. However, we do not find strong constraints on the upper mass limit of the compact object, and we may have a neutron star in a low mass X-ray binary instead of a cataclysmic variable. The orbital period is certainly too short for the donor star to be an evolved giant star, so classifying this object as a symbiotic binary may be a big stretch; however there is an evidence that the mass transfer occurs via stellar winds, rather than through the L1 point of Roche filling secondary, a phenomenon more common for symbiotic stars.",
keywords = "Binaries: close, Cataclysmic variables, Magnetic fields, Spectroscopic, Symbiotic - stars: novae",
author = "Buitrago, {Diego Gonz{\'a}lez} and Gagik Tovmassian and Juan Echevarr{\'i}a and Sergey Zharikov and Takamitsu Miyaji and Andres Avil{\'e}s and Gennady Valyavin",
year = "2011",
month = "7",
doi = "10.1017/S1743921312014780",
language = "Ingl{\'e}s",
isbn = "9781107019812",
series = "Proceedings of the International Astronomical Union",
publisher = "Cambridge University Press",
number = "S281",
pages = "113--116",
booktitle = "Binary Paths to Type Ia Supernovae Explosions",
address = "Reino Unido",
edition = "S281",

}

Buitrago, DG, Tovmassian, G, Echevarría, J, Zharikov, S, Miyaji, T, Avilés, A & Valyavin, G 2011, V479 and: CV, LMXB, or symbiotic? En Binary Paths to Type Ia Supernovae Explosions. S281 ed., Proceedings of the International Astronomical Union, n.º S281, vol. 7, Cambridge University Press, pp. 113-116. https://doi.org/10.1017/S1743921312014780

V479 and : CV, LMXB, or symbiotic? / Buitrago, Diego González; Tovmassian, Gagik; Echevarría, Juan; Zharikov, Sergey; Miyaji, Takamitsu; Avilés, Andres; Valyavin, Gennady.

Binary Paths to Type Ia Supernovae Explosions. S281. ed. Cambridge University Press, 2011. p. 113-116 (Proceedings of the International Astronomical Union; Vol. 7, N.º S281).

Resultado de la investigación: Capítulo del libro/informe/acta de congresoContribución a la conferencia

TY - GEN

T1 - V479 and

T2 - CV, LMXB, or symbiotic?

AU - Buitrago, Diego González

AU - Tovmassian, Gagik

AU - Echevarría, Juan

AU - Zharikov, Sergey

AU - Miyaji, Takamitsu

AU - Avilés, Andres

AU - Valyavin, Gennady

PY - 2011/7

Y1 - 2011/7

N2 - V479 And is a 14.26 hour, close binary system, comprised of a G8-K0 star departing from the main sequence and a compact primary star accreting matter from the donor. The object is an X-ray source, modulated with the orbital period. This, and the presence of an intense He II line, leads us to speculate that the compact object is a magnetic white dwarf. However, we do not find strong constraints on the upper mass limit of the compact object, and we may have a neutron star in a low mass X-ray binary instead of a cataclysmic variable. The orbital period is certainly too short for the donor star to be an evolved giant star, so classifying this object as a symbiotic binary may be a big stretch; however there is an evidence that the mass transfer occurs via stellar winds, rather than through the L1 point of Roche filling secondary, a phenomenon more common for symbiotic stars.

AB - V479 And is a 14.26 hour, close binary system, comprised of a G8-K0 star departing from the main sequence and a compact primary star accreting matter from the donor. The object is an X-ray source, modulated with the orbital period. This, and the presence of an intense He II line, leads us to speculate that the compact object is a magnetic white dwarf. However, we do not find strong constraints on the upper mass limit of the compact object, and we may have a neutron star in a low mass X-ray binary instead of a cataclysmic variable. The orbital period is certainly too short for the donor star to be an evolved giant star, so classifying this object as a symbiotic binary may be a big stretch; however there is an evidence that the mass transfer occurs via stellar winds, rather than through the L1 point of Roche filling secondary, a phenomenon more common for symbiotic stars.

KW - Binaries: close

KW - Cataclysmic variables

KW - Magnetic fields

KW - Spectroscopic

KW - Symbiotic - stars: novae

UR - http://www.scopus.com/inward/record.url?scp=84872722726&partnerID=8YFLogxK

U2 - 10.1017/S1743921312014780

DO - 10.1017/S1743921312014780

M3 - Contribución a la conferencia

AN - SCOPUS:84872722726

SN - 9781107019812

T3 - Proceedings of the International Astronomical Union

SP - 113

EP - 116

BT - Binary Paths to Type Ia Supernovae Explosions

PB - Cambridge University Press

ER -

Buitrago DG, Tovmassian G, Echevarría J, Zharikov S, Miyaji T, Avilés A y otros. V479 and: CV, LMXB, or symbiotic? En Binary Paths to Type Ia Supernovae Explosions. S281 ed. Cambridge University Press. 2011. p. 113-116. (Proceedings of the International Astronomical Union; S281). https://doi.org/10.1017/S1743921312014780