Extended X-ray emission associated with the northern hotspot of 3C 390.3

Details Extended X-ray emission associated with the northern hotspot of 3C 390.3 Extended X-ray emission associated with the northern hotspot of 3C 390.3

Jan 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997mnras.284..627p&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 284, Issue 3, pp. 627-632.

Astronomy and Astrophysics

Astronomy

13

Radiation Mechanisms: Nonthermal, Galaxies: Individual: 3C 390.3, Radio Continuum: Galaxies, X-Rays: Galaxies.

Scientific paper

ROSAT Position Sensitive Proportional Counter (PSPC) observations of the double-lobed radio source 3C 390.3 show resolved X-ray emission spatially located at the position of the northern radio hotspot. Possible origins for this X-ray emission are discussed. It is found that neither thermal emission nor inverse Compton emission could account for the observed X-rays if particle-field equipartition conditions must prevail. Alternatively, the available multifrequency data from the northern hotspot are consistent with a smoothly decaying synchrotron spectrum from the radio to the X-ray frequencies. In such case, the shape of the synchrotron spectrum is similar to those seen in the western hotspots of Pictor A and 3C 303.

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