High-resolution radio observations of the Seyfert galaxy NGC 1068

Details High-resolution radio observations of the Seyfert galaxy NGC 1068 High-resolution radio observations of the Seyfert galaxy NGC 1068

Feb 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983mnras.202..647p&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 202, Feb. 1983, p. 647-656.

Astronomy and Astrophysics

Astronomy

67

Galactic Nuclei, Galactic Radio Waves, Radio Sources (Astronomy), Seyfert Galaxies, Centimeter Waves, Collimation, Continuous Radiation, Forbidden Transitions, Radiant Flux Density, Radio Spectra

Scientific paper

High-resolution (approximately equal to or less than 1 arcsec) MERLIN observations at 73 and 18 cm of the nucleus of NGC 1068 are presented. The 18-cm radio structure strongly suggests the presence of a radio jet emanating from a central component. This central component is smaller than 1 arcsec and shows a low-frequency turnover which is interpreted as being due to free-free absorption by clouds in the forbidden-line region (FLR). It is estimated that a typical FLR cloud has a mass of approximately 1 solar mass and from this it is argued that the beam velocity of the jet could be of order 1000 Km/s.

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