dc.contributor.author |
Punsly, B |
|
dc.contributor.author |
Tingay, SJ |
|
dc.contributor.author |
Cellone, SA |
|
dc.contributor.author |
Rodríguez, LF |
|
dc.date.accessioned |
2011-01-22T10:27:16Z |
|
dc.date.available |
2011-01-22T10:27:16Z |
|
dc.date.issued |
2005 |
|
dc.identifier.issn |
0004-637X |
|
dc.identifier.uri |
http://hdl.handle.net/11154/2365 |
|
dc.description.abstract |
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. |
en_US |
dc.language.iso |
en |
en_US |
dc.title |
PKS 1622-253: A weakly accreting, powerful gamma-ray source |
en_US |
dc.type |
Article |
en_US |
dc.identifier.idprometeo |
1518 |
|
dc.source.novolpages |
633(2) |
|
dc.subject.wos |
Astronomy & Astrophysics |
|
dc.description.index |
WoS: SCI, SSCI o AHCI |
|
dc.subject.keywords |
accretion, accretion disks |
|
dc.subject.keywords |
black hole physics |
|
dc.subject.keywords |
galaxies : active |
|
dc.subject.keywords |
galaxies : jets |
|
dc.subject.keywords |
quasars : general |
|
dc.subject.keywords |
quasars : individual (PKS 1622-253) |
|
dc.relation.journal |
Astrophysical Journal |
|