The Blazar Sequence: Validity and Predictions
| dc.creator | Padovani, P. | |
| dc.date | 2006-10-18 | |
| dc.date.accessioned | 2026-07-07T10:40:33Z | |
| dc.date.available | 2026-07-07T10:40:33Z | |
| dc.description | The "blazar sequence" posits that the most powerful BL Lacertae objects and flat-spectrum radio quasars should have relatively small synchrotron peak frequencies, nu_peak, and that the least powerful such objects should have the highest nu_peak values. This would have strong implications for our understanding of jet formation and physics and the possible detection of powerful, moderately high-redshift TeV blazars. I review the validity of the blazar sequence by using the results of very recent surveys and compare its detailed predictions against observational data. I find that the blazar sequence in its simplest form is ruled out. However, powerful flat-spectrum radio quasars appear not to reach the nu_peak typical of BL Lacs. This could indeed be related to some sort of sequence, although it cannot be excluded that it is instead due to a selection effect. | |
| dc.description | 9 pages, 4 figures, invited talk at the Workshop "The Multi-messenger approach to high energy gamma-ray sources", Barcelona, Spain, July 4-7, 2006, to appear in the proceedings | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0610545 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0610545 | |
| dc.identifier | Astrophys.SpaceSci.309:63-71,2007 | |
| dc.identifier | doi:10.1007/s10509-007-9455-2 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/181367 | |
| dc.subject | Astrophysics | |
| dc.title | The Blazar Sequence: Validity and Predictions | |
| dc.type | text |