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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Autores principales: | , , , |
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Formato: | Articulo |
Lenguaje: | Inglés |
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2005
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Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/84362 |
Aporte de: |
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I19-R120-10915-84362 |
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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 |
work_keys_str_mv |
AT punslybrian pks1622253aweaklyaccretingpowerfulgammaraysource AT rodriguezluisf pks1622253aweaklyaccretingpowerfulgammaraysource AT tingaystevenj pks1622253aweaklyaccretingpowerfulgammaraysource AT cellonesergioaldo pks1622253aweaklyaccretingpowerfulgammaraysource |
bdutipo_str |
Repositorios |
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1764820488641576961 |