Search Menu
Photonics Media Photonics Buyers' Guide Photonics EDU Photonics Spectra BioPhotonics EuroPhotonics Industrial Photonics Photonics Showcase Photonics ProdSpec Photonics Handbook
More News
Email Facebook Twitter Google+ LinkedIn Comments

  • Very Large Telescope Snaps Images of Radio Hot Spots

Photonics Spectra
Nov 2002
A research group has imaged hot spots from the radio galaxy 3C 445 using optical and infrared cameras on the Very Large Telescope. The images show knots embedded in a diffuse optical emission that is created by the impact of a particle jet with the intergalactic medium.

Scientists from the European Southern Observatory, the Instituto di Radioastronomia del CNR, the Netherlands Foundation for Research in Astronomy and Radioastronomisches Institut der Universität Bonn reported the work in the Oct. 4 issue of Science. They confirm that Fermi-I processes accelerate the electrons to relativistic speeds. The emission tracing the rims of the front shock and the multiple knots indicate additional continuous reacceleration processes.

Terms & Conditions Privacy Policy About Us Contact Us
back to top

Facebook Twitter Instagram LinkedIn YouTube RSS
©2016 Photonics Media
x Subscribe to Photonics Spectra magazine - FREE!