SIMBAD references

2018ApJ...857L...6D - Astrophys. J., 857, L6-L6 (2018/April-2)

A recollimation shock in a stationary jet feature with limb-brightening in the gamma-ray-emitting narrow-line Seyfert 1 galaxy 1H 0323+342.


Abstract (from CDS):

We report the discovery of a local convergence of a jet cross section in the quasi-stationary jet feature in the γ-ray-emitting narrow-line Seyfert 1 galaxy (NLS1) 1H 0323+342. The convergence site is located at ∼7 mas (corresponding to the order of 100 pc in deprojection) from the central engine. We also found limb-brightened jet structures at both the upstream and downstream of the convergence site. We propose that the quasi-stationary feature showing the jet convergence and limb-brightening occurs as a consequence of recollimation shock in the relativistic jets. The quasi-stationary feature is one of the possible γ-ray-emitting sites in this NLS1, in analogy with the HST-1 complex in the M87 jet. Monitoring observations have revealed that superluminal components passed through the convergence site and the peak intensity of the quasi-stationary feature, which showed apparent coincidences with the timing of observed γ-ray activities.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): galaxies: active - galaxies: individual: 1H 0323+342 - galaxies: jets - galaxies: Seyfert - gamma rays: galaxies - radio continuum: galaxies

Simbad objects: 7

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