Abstract
Jets in active galaxies are signatures of energy supply via collimated beams of plasma from the galactic nucleus to the extended regions of emission. These jets, which occur across the electromagnetic spectrum, are powered by supermassive black holes in the centres of the host galaxies. Jets are seen on the scale of parsecs in the nuclear regions to those which power the giant radio sources extending over several megaparsecs. These jets raise many challenging astrophysical questions. This article explores some aspects of jets in radio galaxies and quasars, which are amongst the most powerful active galaxies.
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D J Saikia has been engaged in research and teaching for over forty years at the National Centre for Radio Astrophysics of the Tata Institute of Fundamental Research. He was the founding Vice-Chancellor of Cotton University at Guwahati. His research interests have been largely on extragalactic astronomy, and more recently on education and related policy issues, with an emphasis on higher education.
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Saikia, D.J. Jets in Active Galaxies. Reson 23, 147–163 (2018). https://doi.org/10.1007/s12045-018-0602-6
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DOI: https://doi.org/10.1007/s12045-018-0602-6