Nonthermal emission from high-mass microquasar jets affected by orbital motion

Context. The stellar wind in high-mass microquasars should interact with the jet. This interaction, coupled with orbital motion, is expected to make the jet follow a helical, nonballistic trajectory. The jet energy dissipated by this interaction, through shocks for example, could lead to nonthermal...

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Detalles Bibliográficos
Autores: Molina, Edgar, Bosch i Ramon, Valentí
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2018
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:2445/164784
Acceso en línea:https://hdl.handle.net/2445/164784
Access Level:acceso abierto
Palabra clave:Jets (Astrofísica)
Raigs X
Estels
Astrofísica
Astrophysical jets
X-rays
Stars
Astrophysics
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oai_identifier_str oai:recercat.cat:2445/164784
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repository_id_str
spelling Nonthermal emission from high-mass microquasar jets affected by orbital motionMolina, EdgarBosch i Ramon, ValentíJets (Astrofísica)Raigs XEstelsAstrofísicaAstrophysical jetsX-raysStarsAstrophysicsContext. The stellar wind in high-mass microquasars should interact with the jet. This interaction, coupled with orbital motion, is expected to make the jet follow a helical, nonballistic trajectory. The jet energy dissipated by this interaction, through shocks for example, could lead to nonthermal activity on scales significantly larger than the system size. Aims. We calculate the broadband emission from a jet affected by the impact of the stellar wind and orbital motion in a high-mass microquasar. Methods. We employ a prescription for the helical trajectory of a jet in a system with a circular orbit. Subsequently, assuming electron acceleration at the onset of the helical jet region, we compute the spatial and energy distribution of these electrons, and their synchrotron and inverse Compton emission including gamma-ray absorption effects. Results. For typical source parameters, significant radio, X- and gamma-ray luminosities are predicted. The scales on which the emission is produced may reduce, but not erase, orbital variability of the inverse Compton emission. The wind and orbital effects on the radio emission morphology could be studied using very long baseline interferometric techniques. Conclusions. We predict significant broadband emission, modulated by orbital motion, from a helical jet in a high-mass microquasar. This emission may be hard to disentangle from radiation of the binary itself, although the light curve features, extended radio emission, and a moderate opacity to very high-energy gamma rays, could help to identify the contribution from an extended (helical) jet region.EDP Sciences2020202020182020info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion11 p.application/pdfhttps://hdl.handle.net/2445/164784Articles 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)InglésReproducció del document publicat a: https://doi.org/10.1051/0004-6361/201833681Astronomy & Astrophysics, 2018, vol. 618, num. A146https://doi.org/10.1051/0004-6361/201833681(c) The European Southern Observatory (ESO), 2018info:eu-repo/semantics/openAccessoai:recercat.cat:2445/1647842026-05-29T05:05:01Z
dc.title.none.fl_str_mv Nonthermal emission from high-mass microquasar jets affected by orbital motion
title Nonthermal emission from high-mass microquasar jets affected by orbital motion
spellingShingle Nonthermal emission from high-mass microquasar jets affected by orbital motion
Molina, Edgar
Jets (Astrofísica)
Raigs X
Estels
Astrofísica
Astrophysical jets
X-rays
Stars
Astrophysics
title_short Nonthermal emission from high-mass microquasar jets affected by orbital motion
title_full Nonthermal emission from high-mass microquasar jets affected by orbital motion
title_fullStr Nonthermal emission from high-mass microquasar jets affected by orbital motion
title_full_unstemmed Nonthermal emission from high-mass microquasar jets affected by orbital motion
title_sort Nonthermal emission from high-mass microquasar jets affected by orbital motion
dc.creator.none.fl_str_mv Molina, Edgar
Bosch i Ramon, Valentí
author Molina, Edgar
author_facet Molina, Edgar
Bosch i Ramon, Valentí
author_role author
author2 Bosch i Ramon, Valentí
author2_role author
dc.subject.none.fl_str_mv Jets (Astrofísica)
Raigs X
Estels
Astrofísica
Astrophysical jets
X-rays
Stars
Astrophysics
topic Jets (Astrofísica)
Raigs X
Estels
Astrofísica
Astrophysical jets
X-rays
Stars
Astrophysics
description Context. The stellar wind in high-mass microquasars should interact with the jet. This interaction, coupled with orbital motion, is expected to make the jet follow a helical, nonballistic trajectory. The jet energy dissipated by this interaction, through shocks for example, could lead to nonthermal activity on scales significantly larger than the system size. Aims. We calculate the broadband emission from a jet affected by the impact of the stellar wind and orbital motion in a high-mass microquasar. Methods. We employ a prescription for the helical trajectory of a jet in a system with a circular orbit. Subsequently, assuming electron acceleration at the onset of the helical jet region, we compute the spatial and energy distribution of these electrons, and their synchrotron and inverse Compton emission including gamma-ray absorption effects. Results. For typical source parameters, significant radio, X- and gamma-ray luminosities are predicted. The scales on which the emission is produced may reduce, but not erase, orbital variability of the inverse Compton emission. The wind and orbital effects on the radio emission morphology could be studied using very long baseline interferometric techniques. Conclusions. We predict significant broadband emission, modulated by orbital motion, from a helical jet in a high-mass microquasar. This emission may be hard to disentangle from radiation of the binary itself, although the light curve features, extended radio emission, and a moderate opacity to very high-energy gamma rays, could help to identify the contribution from an extended (helical) jet region.
publishDate 2018
dc.date.none.fl_str_mv 2018
2020
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/164784
url https://hdl.handle.net/2445/164784
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1051/0004-6361/201833681
Astronomy & Astrophysics, 2018, vol. 618, num. A146
https://doi.org/10.1051/0004-6361/201833681
dc.rights.none.fl_str_mv (c) The European Southern Observatory (ESO), 2018
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) The European Southern Observatory (ESO), 2018
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 11 p.
application/pdf
dc.publisher.none.fl_str_mv EDP Sciences
publisher.none.fl_str_mv EDP Sciences
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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