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Interaction of Jets with the Interstellar Medium in GPS, CSS and CSO Sources

Published online by Cambridge University Press:  12 April 2016

Geoffrey V. Bicknell
Affiliation:
Astrophysical Theory Centre, Australian National University, Canberra, ACT 0200, Australia
Michael A. Dopita
Affiliation:
Mt. Stromlo & Siding Spring Observatories, Weston PO, ACT 2611, Australia
Christopher P. O’Dea
Affiliation:
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, USA

Extract

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In the past, the interaction of AGN jets with the surrounding medium has mainly been considered important only insofar as it gave us some understanding of the properties of jets. The emphasis of the work summarised here is different. In a recent paper (Bicknell, Dopita and O’Dea, 1996) we have proposed that the key optical and radio properties of Gigahertz Peak Spectrum (GPS) and Compact Steep Spectrum (CSS) sources, both treated as examples of Compact Symmetric Objects (CSOs) can be explained in terms of the interaction of a jet with a dense ISM - presumably the result of a merger. We therefore suggest that these sources represent an important evolutionary phase in Active Galactic Nuclei in which the interaction with the ISM is dominant.

Type
Part 14. AGN and Galactic Centre
Copyright
Copyright © Astronomical Society of the Pacific 1997

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