Search results for "Instrumentation: high angular resolution"

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Jet collimation in NGC 315 and other nearby AGN

2020

Aims. The collimation of relativistic jets in galaxies is a poorly understood process. Detailed radio studies of the jet collimation region have been performed so far in few individual objects, providing important constraints for jet formation models. However, the extent of the collimation zone as well as the nature of the external medium possibly confining the jet are still debated. Methods. In this article we present a multi-frequency and multi-scale analysis of the radio galaxy NGC 315, including the use of mm-VLBI data up to 86 GHz, aimed at revealing the evolution of the jet collimation profile. We then consider results from the literature to compare the jet expansion profile in a samp…

Radio galaxyAstrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesAstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsGalaxies: jet01 natural sciencesGalaxies: individual: NGC 315Astrophysical jet0103 physical sciencesThick disk010303 astronomy & astrophysicsAstrophysics::Galaxy AstrophysicsPhysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)Jet (fluid)010308 nuclear & particles physicsAstronomy and AstrophysicsRadiusGalaxies: ActiveGalaxyAccretion (astrophysics)Space and Planetary ScienceInstrumentation: high angular resolutionHigh Energy Physics::ExperimentAstrophysics - High Energy Astrophysical PhenomenaSchwarzschild radius
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