Large bent jets in the inner region of CSSs
F. Mantovani (Ist. di Radioastronomia, Bologna, Italy), W. Junor, (Inst. for Astrophysics, University of New Mexico, USA), M. Bondi (Ist. di, Radioastronomia, Bologna, Italy), W. Cotton (NRAO, Charlottesville, USA), R., Fanti (Ist. di Radioastronomia, Dip. di Fisica
TL;DR
This paper investigates the prevalence of large bent jets in Compact Steep-spectrum Sources, providing observational evidence of jet-cloud interactions in the inner regions of these radio sources.
Contribution
It presents new VLBI observations of four CSSs showing large bent jets and discusses the role of jet-cloud interactions in shaping jet morphology.
Findings
Evidence of jet interaction with dense gas clouds in CSSs.
VLBI images reveal large bent jets within the first kiloparsec.
Statistical support for jet-cloud interactions in Narrow Line Regions.
Abstract
The class of Compact Steep-spectrum Sources is dominated by double-lobed objects (70%). The remaining 30% are jet-dominated objects, with the jet brightened either by Doppler boosting or by interaction with the ambient media. We show that there is both observational and statistical evidence in favour of an interaction between jets and dense gas clouds. Such an interaction should happen in the Narrow Line Regions. The images of four CSSs observed by us with VLBI are also presented. These sources do show large bent jets in the first kpc from the nucleus.
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Taxonomy
TopicsAstrophysics and Cosmic Phenomena · Gamma-ray bursts and supernovae · Radio Astronomy Observations and Technology