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On the Age of GPS Radio Sources

Published online by Cambridge University Press:  19 July 2016

Joel C. Carvalho
Joel C. Carvalho*
Affiliation:
Departamento de Fisica - UFRN - C.P. 1641 59072-970 Natal - RN - Brazil

Extract

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The GHz-Peaked-Spectrum (GPS) radio sources are galaxies and quasars with compact structures on scales of tens to hundreds of parsecs and spectrum peaking around 1 GHz. Phillips and Mutel (1982) suggested that the double GPS sources (also called compact doubles, CD) are an early stage of the evolution of the classical double sources of Fanaroff-Riley class II type. We have presented a model (Carvalho, 1985) in which we show that the properties of the CD sources are consistent with such a scenario. Their ages would be of the order of 104 yr.

Type
Poster Contributions: Radio Emission (Maps)
Information
Symposium - International Astronomical Union , Volume 159: Multi-Wavelength Continuum Emission of AGN , 1994 , pp. 424
Copyright
Copyright © Kluwer 1994 

References

Carvalho, J.C. 1985, Mont. Not. R. Astron. Soc. 215 463.Google Scholar
De Young, D.S. 1990, Astrophys. J. 371 69.Google Scholar
O'Dea, C.P., Baum, S.A. and Stanghellini, C. 1991, Astrophys. J. 380 66.Google Scholar
Phillips, R.B. and Mutel, R.L. 1982, Astron. Astrophys. 106 21.Google Scholar