Nuclear structure in the quasar 3C 345 and the Seyfert galaxy NGC 1275

Details Nuclear structure in the quasar 3C 345 and the Seyfert galaxy NGC 1275 Nuclear structure in the quasar 3C 345 and the Seyfert galaxy NGC 1275

Jun 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985pazh...11..420m&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 11, June 1985, p. 420-431) Soviet Astronomy Letters (ISSN 0360-0327), vol. 11, May-June

Astronomy and Astrophysics

Astronomy

6

Galactic Nuclei, Galactic Structure, Quasars, Radio Astronomy, Seyfert Galaxies, Centimeter Waves, Ionized Gases, Plasma Jets, Self Absorption, Synchrotron Radiation

Scientific paper

The structure of the quasar 3C 345 and of the Seyfert galaxy NGC 1275 has been studied at a wavelength of 18 cm with a global VLBI network. Within 3C 345 are a nucleus and a compact feature, both measuring about 0.0003 arcsec, accompanied by a thin jet that weakens and bends with distance from the nucleus. In NGC 1275, the compact central feature observed at shorter wavelengths is absent at 18 cm, probably because of synchrotron self-absorption as well as absorption in ionized gas surrounding the nucleus.

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