2003/02/25 by A. Comastri, G. Brunetti, D. Dallacasa +4 · 1 citation
Engineering · Physics and Astronomy · #Astronomy #Astrophysics #Astrophysics and Cosmic Phenomena #Compton scattering #Cosmic background radiation #Cosmic microwave background #Cosmic ray #Electron #Galaxy #Magnetic field #Microwave #Nuclear physics #Optics #Particle Accelerators and Free-Electron Lasers #Photon #Physics #Radio Astronomy Observations and Technology #Radio galaxy #Relativistic particle #Synchrotron #Synchrotron radiation #X-shaped radio galaxy #astro-ph
paper · pdf · doi:10.1046/j.1365-8711.2003.06561.x
5 pages, 2 color figures, Accepted for publication in MNRAS pink pages
arxiv created 2003/02/25 · openalex publication_date 2003/04/21 · arxiv updated 2016/08/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We report the results from a Chandra observation of the powerful nearby (z=0.1744) radio galaxy 3C 219. We find evidence for non-thermal X-ray emission from the radio lobes which fits fairly well with a combination of inverse Compton scattering of Cosmic Microwave Background radiation and of nuclear photons with the relativistic electrons in the lobes. The comparison between radio synchrotron and IC emission yields a magnetic field strength significantly lower (about a factor 3) than that calculated under minimum energy conditions; the source energetics is then dominated by the relativistic particles.