High-energy emission in low-mass microquasars

Autores
Vila, Gabriela Soledad; Romero, Gustavo Esteban
Año de publicación
2009
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
Microquasars are binary systems with a compact object accretingfrom a donor star, characterised by the presence of relativisticjets. The electromagnetic spectra of microquasars can range from radioto gamma-rays. In this work we explore the possibility of obtaining high-energyemission from microquasars where the donor star is a low-mass,old and dim star without strong winds. We propose that the interactionof relativistic particles with radiation and magnetic fields in the jetcan be an efficient channel of gamma-ray production in such systems.We focus particularly in proton-dominated jets. We develop a simplemodel to characterise the jet and the distribution of relativistic particlesin steady state. We then calculate the emission spectrum due to differentprocesses: synchrotron radiation, inverse Compton scattering andproton-photon interaction. The contribution of secondary leptons is alsoestimated. Our results indicate that, under some conditions, low-massmicroquasars might be gamma-ray sources detectable by high-energy instrumentslike GLAST.
Fil: Vila, Gabriela Soledad. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; Argentina
Fil: Romero, Gustavo Esteban. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
First La Plata International School Compact Objects and Their Emission
La Plata
Argentina
Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas
Materia
Microquasars
Black holes
Jets
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/228673
Acceder
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network_name_str CONICET Digital (CONICET)
spelling High-energy emission in low-mass microquasarsVila, Gabriela SoledadRomero, Gustavo EstebanMicroquasarsBlack holesJetshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Microquasars are binary systems with a compact object accretingfrom a donor star, characterised by the presence of relativisticjets. The electromagnetic spectra of microquasars can range from radioto gamma-rays. In this work we explore the possibility of obtaining high-energyemission from microquasars where the donor star is a low-mass,old and dim star without strong winds. We propose that the interactionof relativistic particles with radiation and magnetic fields in the jetcan be an efficient channel of gamma-ray production in such systems.We focus particularly in proton-dominated jets. We develop a simplemodel to characterise the jet and the distribution of relativistic particlesin steady state. We then calculate the emission spectrum due to differentprocesses: synchrotron radiation, inverse Compton scattering andproton-photon interaction. The contribution of secondary leptons is alsoestimated. Our results indicate that, under some conditions, low-massmicroquasars might be gamma-ray sources detectable by high-energy instrumentslike GLAST.Fil: Vila, Gabriela Soledad. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; ArgentinaFil: Romero, Gustavo Esteban. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; ArgentinaFirst La Plata International School Compact Objects and Their EmissionLa PlataArgentinaUniversidad Nacional de La Plata. Facultad de Ciencias Astronómicas y GeofísicasPaideiaAndruchow, IleanaRomero, Gustavo Esteban2009info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectOtroBookhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/228673High-energy emission in low-mass microquasars; First La Plata International School Compact Objects and Their Emission; La Plata; Argentina; 2008; 67-74978-950-34-0555-0CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://garra.iar.unlp.edu.ar/docs/LibroPAIDEIA-2.pdfInternacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:56:29Zoai:ri.conicet.gov.ar:11336/228673instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:56:30.09CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv High-energy emission in low-mass microquasars
title High-energy emission in low-mass microquasars
spellingShingle High-energy emission in low-mass microquasars
Vila, Gabriela Soledad
Microquasars
Black holes
Jets
title_short High-energy emission in low-mass microquasars
title_full High-energy emission in low-mass microquasars
title_fullStr High-energy emission in low-mass microquasars
title_full_unstemmed High-energy emission in low-mass microquasars
title_sort High-energy emission in low-mass microquasars
dc.creator.none.fl_str_mv Vila, Gabriela Soledad
Romero, Gustavo Esteban
author Vila, Gabriela Soledad
author_facet Vila, Gabriela Soledad
Romero, Gustavo Esteban
author_role author
author2 Romero, Gustavo Esteban
author2_role author
dc.contributor.none.fl_str_mv Andruchow, Ileana
Romero, Gustavo Esteban
dc.subject.none.fl_str_mv Microquasars
Black holes
Jets
topic Microquasars
Black holes
Jets
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Microquasars are binary systems with a compact object accretingfrom a donor star, characterised by the presence of relativisticjets. The electromagnetic spectra of microquasars can range from radioto gamma-rays. In this work we explore the possibility of obtaining high-energyemission from microquasars where the donor star is a low-mass,old and dim star without strong winds. We propose that the interactionof relativistic particles with radiation and magnetic fields in the jetcan be an efficient channel of gamma-ray production in such systems.We focus particularly in proton-dominated jets. We develop a simplemodel to characterise the jet and the distribution of relativistic particlesin steady state. We then calculate the emission spectrum due to differentprocesses: synchrotron radiation, inverse Compton scattering andproton-photon interaction. The contribution of secondary leptons is alsoestimated. Our results indicate that, under some conditions, low-massmicroquasars might be gamma-ray sources detectable by high-energy instrumentslike GLAST.
Fil: Vila, Gabriela Soledad. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; Argentina
Fil: Romero, Gustavo Esteban. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
First La Plata International School Compact Objects and Their Emission
La Plata
Argentina
Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas
description Microquasars are binary systems with a compact object accretingfrom a donor star, characterised by the presence of relativisticjets. The electromagnetic spectra of microquasars can range from radioto gamma-rays. In this work we explore the possibility of obtaining high-energyemission from microquasars where the donor star is a low-mass,old and dim star without strong winds. We propose that the interactionof relativistic particles with radiation and magnetic fields in the jetcan be an efficient channel of gamma-ray production in such systems.We focus particularly in proton-dominated jets. We develop a simplemodel to characterise the jet and the distribution of relativistic particlesin steady state. We then calculate the emission spectrum due to differentprocesses: synchrotron radiation, inverse Compton scattering andproton-photon interaction. The contribution of secondary leptons is alsoestimated. Our results indicate that, under some conditions, low-massmicroquasars might be gamma-ray sources detectable by high-energy instrumentslike GLAST.
publishDate 2009
dc.date.none.fl_str_mv 2009
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Otro
Book
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/228673
High-energy emission in low-mass microquasars; First La Plata International School Compact Objects and Their Emission; La Plata; Argentina; 2008; 67-74
978-950-34-0555-0
CONICET Digital
CONICET
url http://hdl.handle.net/11336/228673
identifier_str_mv High-energy emission in low-mass microquasars; First La Plata International School Compact Objects and Their Emission; La Plata; Argentina; 2008; 67-74
978-950-34-0555-0
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://garra.iar.unlp.edu.ar/docs/LibroPAIDEIA-2.pdf
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.coverage.none.fl_str_mv Internacional
dc.publisher.none.fl_str_mv Paideia
publisher.none.fl_str_mv Paideia
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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