Strong and Weak Jets and a Paradigm Shift in the Unification of Radio-loud AGNs

Details Strong and Weak Jets and a Paradigm Shift in the Unification of Radio-loud AGNs Strong and Weak Jets and a Paradigm Shift in the Unification of Radio-loud AGNs

Sep 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011head...12.0401f&link_type=abstract

American Astronomical Society, HEAD meeting #12, #4.01

Other

Scientific paper

We present our recent advances on blazar population studies extending the current `sequence' unifying paradigm towards a more comprehensive picture. We discuss results of study extending the characterization of radio-loud AGNs deeper in the synchrotron peak frequency-luminosity space, i.e. into the envelope bounded at the top by the `blazar sequence'. We confirm that properties of the `blazar envelope' are consistent with progressive mis-alignment of jets with respect to the line of sight, connecting to radio galaxies.
This result is accompanied by two major developments. We find population-based evidence of velocity gradients in jets at low kinetic powers, corresponding to FR1 radio galaxies and most BL Lacs. We hypothesize that these `weak' jets are separated from a population of non-decelerating, low synchrotron-peaking (LSP) blazars and FR2 radio galaxies (`strong' jets). Moreover, these initial results suggest a shift away from the continuous blazar sequence interpretation, namely it is not clear that there is a continuum of SED types with jet power, which does not appear to determine uniquely the placement of a source along the aligned sequence. It appears that below a certain jet kinetic power, sources can either have strong or weak jets, suggesting another parameter besides kinetic power is responsible for the jet structure.
A prediction of this scenario is that most intermediate synchrotron peak (ISP) sources are not intermediate in intrinsic jet power between LSP and high synchrotron-peaking (HSP) as in the original blazar sequence, but are more misaligned versions of HSP sources.

Affiliated with

Also associated with

No associations

Rating

Strong and Weak Jets and a Paradigm Shift in the Unification of Radio-loud AGNs does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Strong and Weak Jets and a Paradigm Shift in the Unification of Radio-loud AGNs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Strong and Weak Jets and a Paradigm Shift in the Unification of Radio-loud AGNs will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1402098