Gamma-Ray Emission From Young Radio Galaxies

Details Gamma-Ray Emission From Young Radio Galaxies Gamma-Ray Emission From Young Radio Galaxies

Jun 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aspc..386..539s&link_type=abstract

Extragalactic Jets: Theory and Observation from Radio to Gamma Ray ASP Conference Series, Vol. 386, proceedings of the conferenc

Astronomy and Astrophysics

Astronomy

Scientific paper

Here we propose a simple dynamical description of young and compact (< kpc) radio galaxies, consisting of relativistic jet propagation into a uniform gaseous medium in the central parts of an elliptical host. In the framework of the proposed model, we follow the evolution of ultrarelativistic electrons injected from a terminal hotspot of a jet to expanding lobes, taking into account their adiabatic energy losses as well as radiative cooling. This allows us to discuss the broad-band lobe emission of young radio sources. In particular, we find a relatively strong and complex high-energy emission component produced by inverse-Compton up-scattering of various surrounding photon fields by the lobe electrons. We argue that such high-energy radiation is strong enough to account for several observed properties of GHz-peaked-spectrum (GPS) radio galaxies at UV and X-ray frequencies. In addition, it is expected to extend up to GeV (or even TeV) photon energies and can thus be probed by several modern γ-ray instruments. In particular, we suggest that GPS radio galaxies should constitute a relatively numerous class of extragalactic sources detected by GLAST.

Affiliated with

Also associated with

No associations

Rating

Gamma-Ray Emission From Young Radio Galaxies 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 Gamma-Ray Emission From Young Radio Galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gamma-Ray Emission From Young Radio Galaxies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-989240