The radiogalaxy B2 1122+39, associated with two radio jets, has been observed with the PSPC and HRI instruments of ROSAT. An extended X-ray emission from a halo of hot gas (kT ≡ 0.5 keV) surrounding the galaxy has been detected, with brightness distribution consistent with an hydrostatic β model. From the comparison of the X-ray data with radio observations the authors find that the pressure is lower in the jet than in the external gas. The standard equipartition assumptions may not be valid.
Roentgenstrahlung from the Universe
- Pub Date:
- February 1996
- Radio Galaxies: X Rays;
- Radio Galaxies: Radio Radiation;
- Radio Galaxies: Morphology