4C 29.30 - Extended optical line and radio emission in a probable galaxy merger

Details 4C 29.30 - Extended optical line and radio emission in a probable galaxy merger 4C 29.30 - Extended optical line and radio emission in a probable galaxy merger

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...311...58v&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 311, Dec. 1, 1986, p. 58-84. Research supported by the Alfred P. Sloan Foun

Astronomy and Astrophysics

Astronomy

67

Celestial Mechanics, Galactic Structure, Radio Galaxies, Visible Spectrum, Astronomical Spectroscopy, Continuous Spectra, Emission Spectra, Gas Dynamics, Polarization Characteristics, Radio Emission, Radio Jets (Astronomy), Shock Waves, Spectrum Analysis

Scientific paper

Detailed radio and optical observations of the radio galaxy 4C 29.30 provide clear morphological, polarimetric, kinematical, and energetic evidence for an interaction between the radio source and the ambient medium. In particular, the observations are consistent with the hypothesis that the collision between the northern jet and a region of relatively dense gas, possibly associated with an optical shell which can be seen at this location, causes the radio emission to flare up, ionizes the gas, deflects and heats the jet material, and allows ionized gas to be mixed into the jet's boundary layers. The data also provide a clue to the origin of the extranuclear gas: the parent galaxy of 4C 29.30 appears to have merged with a gas-rich (disk) galaxy. In addition, both the energetics and morphology of the emission-like gas show that the radio emission represents only a small fraction of the energy outflow from the nucleus of 4C 29.30.

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