Gas-shell parameters and masses of active galactic nuclei

Details Gas-shell parameters and masses of active galactic nuclei Gas-shell parameters and masses of active galactic nuclei

Jun 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978azh....55..456d&link_type=abstract

Astronomicheskii Zhurnal, vol. 55, May-June 1978, p. 456-464. In Russian.

Astronomy and Astrophysics

Astronomy

4

Active Galactic Nuclei, Galactic Radiation, H Lines, Red Shift, Ubv Spectra, H Beta Line, Luminous Intensity, Spectral Line Width, Stellar Mass

Scientific paper

UBV magnitudes, redshifts, H-beta equivalent widths and luminosities, and hydrogen-line Doppler widths are presented for 16 active galactic nuclei. The density, mass, kinetic energy, characteristic size, and time scale of the gas in the formation region of the broad emission lines are estimated. It is shown that the low-velocity (200-300 km/s) gas motions in the forbidden-line zone are apparently balanced by the gravitational potential of the stellar component of a galaxy. On the assumption that high-velocity gas motions are balanced by the gravitational potential of an active nucleus, central-body masses of the order of 100 million solar masses are computed. It is concluded that the bolometric luminosities of the nuclei do not exceed the Eddington limit appropriate for their masses.

Affiliated with

Also associated with

No associations

Rating

Gas-shell parameters and masses of active galactic nuclei does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Gas-shell parameters and masses of active galactic nuclei, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gas-shell parameters and masses of active galactic nuclei will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-788027