Einstein observations of the X-ray structure of Centaurus A - Evidence for the radio-lobe energy source

Details Einstein observations of the X-ray structure of Centaurus A - Evidence for the radio-lobe energy source Einstein observations of the X-ray structure of Centaurus A - Evidence for the radio-lobe energy source

Nov 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...234l..39s&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 234, Nov. 15, 1979, p. L39-L43.

Astronomy and Astrophysics

Astrophysics

73

Centaurus Constellation, Galactic Nuclei, Heao 2, Radio Galaxies, X Ray Sources, Astronomical Observatories, Astrophysics

Scientific paper

The X-ray source at the center of the radio galaxy Centaurus A has been resolved into the following components with the imaging detectors on board the Einstein X-ray Observatory: (1) a point source coincident with the infrared nucleus; (2) diffuse X-ray emission coinciding with the inner radio lobes; (3) a 4-arcmin extended region of emission about the nucleus; and (4) an X-ray jet between the nucleus and the NE inner radio lobe. The 2 x 10 to the 39th ergs/s detected from the radio lobes probably arises from inverse Compton scattering of the microwave background. The average magnetic field in the SW lobe is determined to be not less than 4 microgauss. The extended region may be due to emission by a cloud of hot gas, cosmic-ray scattering, or stellar sources. The jet provides strong evidence for the continuous resupply of energy to the lobes from the nucleus.

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