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High-resolution radio observations of nearby galaxies

Published online by Cambridge University Press:  19 July 2016

D. J. Saikia  and
A. Pedlar
D. J. Saikia
Affiliation:
Tata Institute of Fundamental Research, NCRA, Post Bag 3, Ganeshkhind, Pune 411 001, India
A. Pedlar
Affiliation:
Nuffield Radio Astronomy Laboratories, Jodrell Bank, Macclesfield, Cheshire SK11 9DL, UK

Extract

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The central regions of many nearby active galaxies are often heavily obscured by dust and gas and are visible at only the far infrared (FIR) and radio wavelengths. High-resolution radio observations provide an invaluable tool for clarifying the dominant power source in an active galaxy which could be due to either an intense burst of star formation or an active galactic nucleus (AGN). An AGN is normally assumed to be powered by a supermassive black hole with an accretion disk, where the black hole forms as the end product of stellar evolution. There have been suggestions linking both these forms of activity to galaxy interactions, but the conditions that might lead to the formation of an AGN and how it is fuelled are not well understood.

Type
Variability
Information
Symposium - International Astronomical Union , Volume 159: Multi-Wavelength Continuum Emission of AGN , 1994 , pp. 189 - 192
Copyright
Copyright © Kluwer 1994 

References

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