VLA observations of Markarian 8 at 6-cm wavelength

Astronomy and Astrophysics – Astronomy

Scientific paper

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Astronomical Maps, Centimeter Waves, Radio Astronomy, Radio Emission, Radio Galaxies, Antenna Arrays, Electron Density (Concentration), H Ii Regions, Hydrogen Ions, Nonthermal Radiation, Star Clusters

Scientific paper

Data from radio observations of the clumpy galaxy Markarian 8 obtained at 6-cm wavelength with the then partially completed VLA during January, 1980, are presented in tables and maps and discussed. Three radio components with flat thermal-type emission spectra and embedded in a diffuse nonthermal-emission envelope are found at locations coinciding with the optical clumps. Calculations of electron density and ionized-H mass suggest that the clumps may be supergiant H II regions containing as many as 35,000 O8V stars and supporting accelerated star formation.

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