X-ray and radio emission from the compact galaxy III ZW 2

Details X-ray and radio emission from the compact galaxy III ZW 2 X-ray and radio emission from the compact galaxy III ZW 2

Jun 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...222l..91s&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 222, June 15, 1978, p. L91-L94.

Astronomy and Astrophysics

Astronomy

29

Compact Galaxies, Galactic Evolution, Galactic Radiation, Radio Sources (Astronomy), X Ray Sources, Astronomical Spectroscopy, Radio Spectra, Sas, Satellite Observation, Very Large Array (Vla), X Ray Spectra

Scientific paper

X-rays from the compact galaxy III Zw 2 have been detected with the rotating modulation collimator on board SAS 3. The (2-10-keV) flux is (4.3 + or - 0.5) by 10 to the -11th power erg/sq cm per sec, which corresponds to a luminosity of 1.4 by 10 to the 45th power erg/s at 530 Mpc. Subsequent radio observations between 1.46 and 90 GHz were made at the NRAO Very Large Array and 36-foot (11-m) installations. The radio spectrum rises sharply toward higher frequencies and, below about 100 GHz, is indicative of a self-absorbed synchrotron spectrum from an extremely compact, rapidly evolving object.

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