Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010jsara...3...15m&link_type=abstract
Journal of the Southeastern Association for Research in Astronomy, vol. 3, p. 15.
Astronomy and Astrophysics
Astronomy
Active Galaxies, Radiation Mechanisims, X-Ray, Infrared, 3C 445, Inverse Compton, Synchrotron, Hot Spots
Scientific paper
The defining feature of radio-loud active galaxies are the pairs of radio-emitting jets that flow for distances of many kiloparsecs from the center out into the intergalactic medium. These jets often terminate in regions of intensified brightness, or hot spots, that occur when the flow of the jet collides with the intergalactic medium. There is an ongoing debate in extragalactic astronomy as to the emission mechanisms in these hot spots. Here we discuss observations at X-ray and infrared wavelengths of radio galaxy 3C 445 which were centered on the approaching southern hotspot. We propose that the emission from the southern hotspot contains emission both from the synchrotron and inverse-Compton (IC) processes. Fits to the spectra of the hot spot and AGN, a contour plot in the X-ray and overlayed in the infrared, and two models for the synchrotron and IC emission within the hot spot are presented.
Georganopoulos Markos
Kazanas Demosthenes
May Emily M.
Perlman Eric Steven
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