The structure of the nucleus of the Seyfert galaxy NGC 1275

Details The structure of the nucleus of the Seyfert galaxy NGC 1275 The structure of the nucleus of the Seyfert galaxy NGC 1275

Feb 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980pazh....6...77m&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 6, Feb. 1980, p. 77-86.) Soviet Astronomy Letters, vol. 6, Jan.-Feb. 1980, p. 42-47. Tr

Astronomy and Astrophysics

Astronomy

11

Galactic Nuclei, Galactic Structure, Radio Astronomy, Seyfert Galaxies, Brightness Temperature, Electron Density (Concentration), Energy Spectra, Fine Structure

Scientific paper

The nucleus of the Seyfert galaxy NGC 1275 has been surveyed at 1.35-cm wavelength with the Haystack-Green Bank-Effelsberg-Onsala-Crimea radio-interferometer network. Its structure comprises eastern and western systems of features, separated by 0.7 pc. The eastern system has a core embedded in an absorbing medium whose electron density depends on distance L as 4 x 10 to the 45th L exp -2.3 + or - 0.5. The compact components, which measure about 0.0001 arcsec across, have a magnetic field strength of about 0.3 gauss. All fine-structure components maintain stable positions, but their brightness is variable. The radio brightness distribution is probably governed by the magnetic field structure.

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