LS 5039: A runaway microquasar ejected from the galactic plane

We have compiled optical and radio astrometric data of the microquasar LS 5039 and derived its proper motion. This, together with the distance and radial velocity of the system, allows us to state that this source is escaping from its own regional standard of rest, with a total systemic velocity of...

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Detalles Bibliográficos
Autores: Ribó Gomis, Marc, Paredes i Poy, Josep Maria, Romero, Gustavo E., Benaglia, P., Martí Ribas, Josep, Fors Aldrich, Octavi, García-Sánchez, J.
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2002
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/45369
Acceso en línea:https://hdl.handle.net/2445/45369
Access Level:acceso abierto
Palabra clave:Estels
Estels binaris de raigs X
Supernoves
Radioastronomia
Quàsars
Stars
X-ray binaries
Supernovae
Radio astronomy
Quasars
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spelling LS 5039: A runaway microquasar ejected from the galactic planeRibó Gomis, MarcParedes i Poy, Josep MariaRomero, Gustavo E.Benaglia, P.Martí Ribas, JosepFors Aldrich, OctaviGarcía-Sánchez, J.EstelsEstels binaris de raigs XSupernovesRadioastronomiaQuàsarsStarsX-ray binariesSupernovaeRadio astronomyQuasarsWe have compiled optical and radio astrometric data of the microquasar LS 5039 and derived its proper motion. This, together with the distance and radial velocity of the system, allows us to state that this source is escaping from its own regional standard of rest, with a total systemic velocity of about 150 km/s and a component perpendicular to the galactic plane larger than 100 km/s. This is probably the result of an acceleration obtained during the supernova event that created the compact object in this binary system. We have computed the trajectory of LS 5039 in the past, and searched for OB associations and supernova remnants in its path. In particular, we have studied the possible association between LS 5039 and the supernova remnant G016.8-01.1, which, despite our efforts, remains dubious. We have also discovered and studied an HI cavity in the ISM, which could have been created by the stellar wind of LS 5039 or by the progenitor of the compact object in the system. Finally, in the symmetric supernova explosion scenario, we estimate that at least 17 solar masses were lost in order to produce the high eccentricity observed. Such a mass loss could also explain the observed runaway velocity of the microquasar.Springer Verlag2002info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttps://hdl.handle.net/2445/45369Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésVersió postprint del document publicat a: http://dx.doi.org/10.1051/0004-6361:20020093Astronomy and Astrophysics, 2002, vol. 384, p. 954-964http://dx.doi.org/10.1051/0004-6361:20020093(c) Springer Verlag, 2002info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/453692026-05-27T06:46:51Z
dc.title.none.fl_str_mv LS 5039: A runaway microquasar ejected from the galactic plane
title LS 5039: A runaway microquasar ejected from the galactic plane
spellingShingle LS 5039: A runaway microquasar ejected from the galactic plane
Ribó Gomis, Marc
Estels
Estels binaris de raigs X
Supernoves
Radioastronomia
Quàsars
Stars
X-ray binaries
Supernovae
Radio astronomy
Quasars
title_short LS 5039: A runaway microquasar ejected from the galactic plane
title_full LS 5039: A runaway microquasar ejected from the galactic plane
title_fullStr LS 5039: A runaway microquasar ejected from the galactic plane
title_full_unstemmed LS 5039: A runaway microquasar ejected from the galactic plane
title_sort LS 5039: A runaway microquasar ejected from the galactic plane
dc.creator.none.fl_str_mv Ribó Gomis, Marc
Paredes i Poy, Josep Maria
Romero, Gustavo E.
Benaglia, P.
Martí Ribas, Josep
Fors Aldrich, Octavi
García-Sánchez, J.
author Ribó Gomis, Marc
author_facet Ribó Gomis, Marc
Paredes i Poy, Josep Maria
Romero, Gustavo E.
Benaglia, P.
Martí Ribas, Josep
Fors Aldrich, Octavi
García-Sánchez, J.
author_role author
author2 Paredes i Poy, Josep Maria
Romero, Gustavo E.
Benaglia, P.
Martí Ribas, Josep
Fors Aldrich, Octavi
García-Sánchez, J.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Estels
Estels binaris de raigs X
Supernoves
Radioastronomia
Quàsars
Stars
X-ray binaries
Supernovae
Radio astronomy
Quasars
topic Estels
Estels binaris de raigs X
Supernoves
Radioastronomia
Quàsars
Stars
X-ray binaries
Supernovae
Radio astronomy
Quasars
description We have compiled optical and radio astrometric data of the microquasar LS 5039 and derived its proper motion. This, together with the distance and radial velocity of the system, allows us to state that this source is escaping from its own regional standard of rest, with a total systemic velocity of about 150 km/s and a component perpendicular to the galactic plane larger than 100 km/s. This is probably the result of an acceleration obtained during the supernova event that created the compact object in this binary system. We have computed the trajectory of LS 5039 in the past, and searched for OB associations and supernova remnants in its path. In particular, we have studied the possible association between LS 5039 and the supernova remnant G016.8-01.1, which, despite our efforts, remains dubious. We have also discovered and studied an HI cavity in the ISM, which could have been created by the stellar wind of LS 5039 or by the progenitor of the compact object in the system. Finally, in the symmetric supernova explosion scenario, we estimate that at least 17 solar masses were lost in order to produce the high eccentricity observed. Such a mass loss could also explain the observed runaway velocity of the microquasar.
publishDate 2002
dc.date.none.fl_str_mv 2002
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/2445/45369
url https://hdl.handle.net/2445/45369
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Versió postprint del document publicat a: http://dx.doi.org/10.1051/0004-6361:20020093
Astronomy and Astrophysics, 2002, vol. 384, p. 954-964
http://dx.doi.org/10.1051/0004-6361:20020093
dc.rights.none.fl_str_mv (c) Springer Verlag, 2002
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) Springer Verlag, 2002
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 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:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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