PKS 1622-253: A weakly accreting, powerful gamma-ray source

Autores
Punsly, Brian; Rodríguez, Luis F.; Tingay, Steven J.; Cellone, Sergio Aldo
Año de publicación
2005
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We discuss new deep radio observations of PKS 1622-253 and their implications for the energetics of the central engine that powers this strong high-energy gamma-ray source. Combining archival infrared and optical measurements with new millimeter observations, we show that even though the accretion flow in PKS 1622-253 is underluminous by quasar standards, a powerful superluminal jet is launched with a higher kinetic luminosity than most EGRET blazars. Only a few percent of the total jet kinetic luminosity is required to power even the most powerful gamma-ray flares that are observed. The implication is that a high-accretion system is not required in order to power the strongest high-energy gamma-ray sources.
Facultad de Ciencias Astronómicas y Geofísicas
Materia
Ciencias Astronómicas
Accretion, accretion disks
Black hole physics
Galaxies: active
Galaxies: jets
Quasars: general
Quasars: individual (PKS 1622-253)
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/84362
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/84362
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling PKS 1622-253: A weakly accreting, powerful gamma-ray sourcePunsly, BrianRodríguez, Luis F.Tingay, Steven J.Cellone, Sergio AldoCiencias AstronómicasAccretion, accretion disksBlack hole physicsGalaxies: activeGalaxies: jetsQuasars: generalQuasars: individual (PKS 1622-253)We discuss new deep radio observations of PKS 1622-253 and their implications for the energetics of the central engine that powers this strong high-energy gamma-ray source. Combining archival infrared and optical measurements with new millimeter observations, we show that even though the accretion flow in PKS 1622-253 is underluminous by quasar standards, a powerful superluminal jet is launched with a higher kinetic luminosity than most EGRET blazars. Only a few percent of the total jet kinetic luminosity is required to power even the most powerful gamma-ray flares that are observed. The implication is that a high-accretion system is not required in order to power the strongest high-energy gamma-ray sources.Facultad de Ciencias Astronómicas y Geofísicas2005info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfL93-L96http://sedici.unlp.edu.ar/handle/10915/84362enginfo:eu-repo/semantics/altIdentifier/issn/0004-637Xinfo:eu-repo/semantics/altIdentifier/doi/10.1086/498307info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:16:14Zoai:sedici.unlp.edu.ar:10915/84362Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:16:15.25SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv PKS 1622-253: A weakly accreting, powerful gamma-ray source
title PKS 1622-253: A weakly accreting, powerful gamma-ray source
spellingShingle PKS 1622-253: A weakly accreting, powerful gamma-ray source
Punsly, Brian
Ciencias Astronómicas
Accretion, accretion disks
Black hole physics
Galaxies: active
Galaxies: jets
Quasars: general
Quasars: individual (PKS 1622-253)
title_short PKS 1622-253: A weakly accreting, powerful gamma-ray source
title_full PKS 1622-253: A weakly accreting, powerful gamma-ray source
title_fullStr PKS 1622-253: A weakly accreting, powerful gamma-ray source
title_full_unstemmed PKS 1622-253: A weakly accreting, powerful gamma-ray source
title_sort PKS 1622-253: A weakly accreting, powerful gamma-ray source
dc.creator.none.fl_str_mv Punsly, Brian
Rodríguez, Luis F.
Tingay, Steven J.
Cellone, Sergio Aldo
author Punsly, Brian
author_facet Punsly, Brian
Rodríguez, Luis F.
Tingay, Steven J.
Cellone, Sergio Aldo
author_role author
author2 Rodríguez, Luis F.
Tingay, Steven J.
Cellone, Sergio Aldo
author2_role author
author
author
dc.subject.none.fl_str_mv Ciencias Astronómicas
Accretion, accretion disks
Black hole physics
Galaxies: active
Galaxies: jets
Quasars: general
Quasars: individual (PKS 1622-253)
topic Ciencias Astronómicas
Accretion, accretion disks
Black hole physics
Galaxies: active
Galaxies: jets
Quasars: general
Quasars: individual (PKS 1622-253)
dc.description.none.fl_txt_mv We discuss new deep radio observations of PKS 1622-253 and their implications for the energetics of the central engine that powers this strong high-energy gamma-ray source. Combining archival infrared and optical measurements with new millimeter observations, we show that even though the accretion flow in PKS 1622-253 is underluminous by quasar standards, a powerful superluminal jet is launched with a higher kinetic luminosity than most EGRET blazars. Only a few percent of the total jet kinetic luminosity is required to power even the most powerful gamma-ray flares that are observed. The implication is that a high-accretion system is not required in order to power the strongest high-energy gamma-ray sources.
Facultad de Ciencias Astronómicas y Geofísicas
description We discuss new deep radio observations of PKS 1622-253 and their implications for the energetics of the central engine that powers this strong high-energy gamma-ray source. Combining archival infrared and optical measurements with new millimeter observations, we show that even though the accretion flow in PKS 1622-253 is underluminous by quasar standards, a powerful superluminal jet is launched with a higher kinetic luminosity than most EGRET blazars. Only a few percent of the total jet kinetic luminosity is required to power even the most powerful gamma-ray flares that are observed. The implication is that a high-accretion system is not required in order to power the strongest high-energy gamma-ray sources.
publishDate 2005
dc.date.none.fl_str_mv 2005
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/84362
url http://sedici.unlp.edu.ar/handle/10915/84362
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0004-637X
info:eu-repo/semantics/altIdentifier/doi/10.1086/498307
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
L93-L96
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.070432

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