High-velocity gas in the jet in the radio galaxy DA 240

Details High-velocity gas in the jet in the radio galaxy DA 240 High-velocity gas in the jet in the radio galaxy DA 240

Jan 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...219..400b&link_type=abstract

Astrophysical Journal, Part 1, vol. 219, Jan. 15, 1978, p. 400-403. NSF-supported research;

Astronomy and Astrophysics

Astrophysics

17

Astronomical Spectroscopy, Gas Jets, Ionized Gases, Radio Galaxies, Seyfert Galaxies, Spectrograms, Absorption Spectra, Galactic Nuclei, Galactic Structure, H Alpha Line, Quasars

Scientific paper

Spectrograms of the radio galaxy identified with the source DA 240, obtained with the Kitt Peak 4-m telescope and Ritchey-Chretien spectrograph, reveal the presence of ionized gas in the jet discovered earlier. This gas has a large negative velocity displacement of 3400 km/s relative to the center of the galaxy. This is further evidence for the ejection of gas in a violent event in the nucleus of a radio galaxy. The velocity gradient in this gas is less than about 50 km/s over 14 kpc.

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