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Title: Radio wave heating of astrophysical plasmas
Authors: Gangadhara, R. T
Krishan, V
Keywords: Crab nebula;Electromagnetic radiation;Plasma heating;Quasars;Radio sources (Astronomy);Galactic nuclei;Galactic Structure;Landau damping;Pulsars;Radio frequencies;Seyfert galaxies
Issue Date: Dec-1990
Publisher: Indian Academy of Sciences
Citation: Journal of Astrophysics and Astronomy, Vol. 11, No. 4, pp. 515 - 531
Abstract: The coherent plasma process, parametric decay instability (PDI), has been applied to a homogeneous and unmagnetized plasma. These instabilities cause anomalous absorption of strong electromagnetic radiation under specific conditions of energy and momentum conservation and thus cause anomalous heating of the plasma. The maximum plasma temperatures reached are functions of luminosity of the radio radiation and plasma parameters. It is believed that these processes may be taking place in many astrophysical objects. Here, the conditions in the sources 3C 273, 3C 48 and Crab Nebula are shown to be conducive to the excitation of PDI. These processes also contribute towards the absorption of 21-cm radiation.
ISSN: 0250-6335
Appears in Collections:IIAP Publications

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