Evidence of Halpha periodicities in LSI+61·303

We present the results of analyzing H$\alpha$ spectra of the radio emitting X-ray binary LS I+61303. For the first time, the same 26.5 d radio period is clearly detected in the H$\alpha$ emission line. Moreover, the equivalent width and the peak separation of the H$\alpha$ emission line seem also to...

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Detalles Bibliográficos
Autores: Zamanov, R. K., Martí Ribas, Josep, Paredes i Poy, Josep Maria, Fabregat, Jaime, Ribó Gomis, Marc, Tarasov, A. E.
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:1999
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/45407
Acceso en línea:https://hdl.handle.net/2445/45407
Access Level:acceso abierto
Palabra clave:Estels
Estels binaris de raigs X
Radioastronomia
Astrofísica
Stars
X-ray binaries
Radio astronomy
Astrophysics
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spelling Evidence of Halpha periodicities in LSI+61·303Zamanov, R. K.Martí Ribas, JosepParedes i Poy, Josep MariaFabregat, JaimeRibó Gomis, MarcTarasov, A. E.EstelsEstels binaris de raigs XRadioastronomiaAstrofísicaStarsX-ray binariesRadio astronomyAstrophysicsWe present the results of analyzing H$\alpha$ spectra of the radio emitting X-ray binary LS I+61303. For the first time, the same 26.5 d radio period is clearly detected in the H$\alpha$ emission line. Moreover, the equivalent width and the peak separation of the H$\alpha$ emission line seem also to vary over a time scale of 1600 days. This points towards the $\sim4$ yr modulation, detected in the radio outburst amplitude, being probably a result of variations in the mass loss rate of the Be star and/or density variability in the circumstellar disk. In addition, the dependence of the peak separation from the equivalent width informs us that the LS I+61303 circumstellar disk is among the densest of Be-stars.Springer Verlag2013201319992013info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersion8 p.application/pdfhttps://hdl.handle.net/2445/45407Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésVersió postprint del document publicat en paperAstronomy and Astrophysics, 1999, vol. 351, num. 2, p. 543-550(c) Springer Verlag, 1999info:eu-repo/semantics/openAccessoai:recercat.cat:2445/454072026-05-29T05:05:01Z
dc.title.none.fl_str_mv Evidence of Halpha periodicities in LSI+61·303
title Evidence of Halpha periodicities in LSI+61·303
spellingShingle Evidence of Halpha periodicities in LSI+61·303
Zamanov, R. K.
Estels
Estels binaris de raigs X
Radioastronomia
Astrofísica
Stars
X-ray binaries
Radio astronomy
Astrophysics
title_short Evidence of Halpha periodicities in LSI+61·303
title_full Evidence of Halpha periodicities in LSI+61·303
title_fullStr Evidence of Halpha periodicities in LSI+61·303
title_full_unstemmed Evidence of Halpha periodicities in LSI+61·303
title_sort Evidence of Halpha periodicities in LSI+61·303
dc.creator.none.fl_str_mv Zamanov, R. K.
Martí Ribas, Josep
Paredes i Poy, Josep Maria
Fabregat, Jaime
Ribó Gomis, Marc
Tarasov, A. E.
author Zamanov, R. K.
author_facet Zamanov, R. K.
Martí Ribas, Josep
Paredes i Poy, Josep Maria
Fabregat, Jaime
Ribó Gomis, Marc
Tarasov, A. E.
author_role author
author2 Martí Ribas, Josep
Paredes i Poy, Josep Maria
Fabregat, Jaime
Ribó Gomis, Marc
Tarasov, A. E.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Estels
Estels binaris de raigs X
Radioastronomia
Astrofísica
Stars
X-ray binaries
Radio astronomy
Astrophysics
topic Estels
Estels binaris de raigs X
Radioastronomia
Astrofísica
Stars
X-ray binaries
Radio astronomy
Astrophysics
description We present the results of analyzing H$\alpha$ spectra of the radio emitting X-ray binary LS I+61303. For the first time, the same 26.5 d radio period is clearly detected in the H$\alpha$ emission line. Moreover, the equivalent width and the peak separation of the H$\alpha$ emission line seem also to vary over a time scale of 1600 days. This points towards the $\sim4$ yr modulation, detected in the radio outburst amplitude, being probably a result of variations in the mass loss rate of the Be star and/or density variability in the circumstellar disk. In addition, the dependence of the peak separation from the equivalent width informs us that the LS I+61303 circumstellar disk is among the densest of Be-stars.
publishDate 1999
dc.date.none.fl_str_mv 1999
2013
2013
2013
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/45407
url https://hdl.handle.net/2445/45407
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Versió postprint del document publicat en paper
Astronomy and Astrophysics, 1999, vol. 351, num. 2, p. 543-550
dc.rights.none.fl_str_mv (c) Springer Verlag, 1999
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) Springer Verlag, 1999
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 8 p.
application/pdf
dc.publisher.none.fl_str_mv Springer Verlag
publisher.none.fl_str_mv Springer Verlag
dc.source.none.fl_str_mv Articles publicats en revistes (Física Quàntica i Astrofísica)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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