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

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 f...

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Detalles Bibliográficos
Autores principales:	Punsly, Brian, Rodríguez, Luis F., Tingay, Steven J., Cellone, Sergio Aldo
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2005
Materias:	Ciencias Astronómicas Accretion, accretion disks Black hole physics Galaxies: active Galaxies: jets Quasars: general Quasars: individual (PKS 1622-253)
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/84362
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-84362
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Ciencias Astronómicas Accretion, accretion disks Black hole physics Galaxies: active Galaxies: jets Quasars: general Quasars: individual (PKS 1622-253)
spellingShingle	Ciencias Astronómicas Accretion, accretion disks Black hole physics Galaxies: active Galaxies: jets Quasars: general Quasars: individual (PKS 1622-253) Punsly, Brian Rodríguez, Luis F. Tingay, Steven J. Cellone, Sergio Aldo PKS 1622-253: A weakly accreting, powerful gamma-ray source
topic_facet	Ciencias Astronómicas Accretion, accretion disks Black hole physics Galaxies: active Galaxies: jets Quasars: general Quasars: individual (PKS 1622-253)
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.
format	Articulo Articulo
author	Punsly, Brian Rodríguez, Luis F. Tingay, Steven J. Cellone, Sergio Aldo
author_facet	Punsly, Brian Rodríguez, Luis F. Tingay, Steven J. Cellone, Sergio Aldo
author_sort	Punsly, Brian
title	PKS 1622-253: A weakly accreting, powerful gamma-ray source
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
publishDate	2005
url	http://sedici.unlp.edu.ar/handle/10915/84362
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bdutipo_str	Repositorios
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PKS 1622-253: A weakly accreting, powerful gamma-ray source

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