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Symmetry Parameters of CSS Sources: Evidence of Fuelling?

Published online by Cambridge University Press:  05 March 2013

D. J. Saikia ,
S. Jeyakumar ,
F. Mantovani ,
C. J. Salter ,
R. E. Spencer ,
P. Thomasson  and
P. J. Wiita
D. J. Saikia
Affiliation:
NCRA, TIFR, Post Bag No. 3, Ganeshkhind, Pune 411 007, India. djs@ncra.tifr.res.in
S. Jeyakumar
Affiliation:
NCRA, TIFR, Post Bag No. 3, Ganeshkhind, Pune 411 007, India. djs@ncra.tifr.res.in
F. Mantovani
Affiliation:
Istituto di Radioastronomia, CNR, Via P. Gobetti 101, I−40129 Bologna, Italy. fmantova@ira.cnr.it
C. J. Salter
Affiliation:
Arecibo Observatory, HC3 Box 53995, Arecibo, PR 00612, USA. csalter@naic.edu
R. E. Spencer
Affiliation:
Jodrell Bank Observatory, Macclesfield, Cheshire SK11 9DL, UK. pt@jb.man.ac.uk, res@jb.man.ac.uk
P. Thomasson
Affiliation:
Jodrell Bank Observatory, Macclesfield, Cheshire SK11 9DL, UK. pt@jb.man.ac.uk, res@jb.man.ac.uk
P. J. Wiita
Affiliation:
Georgia State University, Atlanta GA 30303−3083, USA. wiita@chara.gsu.edu
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Abstract

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The compact steep spectrum (CSS) and gigahertz peaked spectrum (GPS) sources are widely believed to be young radio sources, with ages ≤106 yr. If the activity in the nucleus is fuelled by the supply of gas, one might find evidence of this gas by studying the structural and polarisation characteristics of CSS sources and their evolution through this gas. In this paper we discuss some of the possible ‘smoking-gun’ evidence of this gas which may have triggered and fuelled the radio source.

Keywords

galaxies: activequasars: generalradio continuum: galaxies
Type
GPS/CSS Workshop
Information
Publications of the Astronomical Society of Australia , Volume 20 , Issue 1 , 2003 , pp. 50 - 56
Copyright
Copyright © Astronomical Society of Australia 2003

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