Three Decades of Very Long Baseline Interferometry Monitoring of the Parsec-Scale Jet in 3C 345 - Astrophysics > Cosmology and Nongalactic AstrophysicsReportar como inadecuado




Three Decades of Very Long Baseline Interferometry Monitoring of the Parsec-Scale Jet in 3C 345 - Astrophysics > Cosmology and Nongalactic Astrophysics - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Abstract: The 16th magnitude quasar 3C 345 redshift z=0.5928 shows structural andemission variability on parsec scales around a compact unresolved radio core.For the last three decades it has been closely monitored with very longbaseline interferometry VLBI, yielding a wealth of information about thephysics of relativistic outflows and dynamics of the central regions in AGN. Wepresent here preliminary results for the long-term jet evolution, based on the15 GHz monitoring data collected by the MOJAVE survey and various other groupsover the last ~14 years and combined with data from earlier VLBI observationsof 3C 345 which started in 1979. We discuss the trajectories, kinematics, andflux density evolution of enhanced emission regions embedded in the jet andpresent evidence for geometrical e.g. precession and physical e.g.relativistic shocks and plasma instability factors determining the morphologyand dynamics of relativistic flows on parsec scales.



Autor: Frank K. Schinzel, Andrei P. Lobanov, J. Anton Zensus

Fuente: https://arxiv.org/



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