Recollimation shocks in the relativistic outflows of active galactic nuclei: Doctoral Thesis Award Lecture 2014

We analysed the single‐dish radio light curves of the blazar CTA 102 during its major flare around April 2006. The modelling of these data revealed a possible travelling shock–recollimation shock interaction during the flare. To verify this hypothesis, we used multi‐epoch and multi‐frequency very‐lo...

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Published inAstronomische Nachrichten Vol. 336; no. 5; pp. 447 - 457
Main Author Fromm, C. M.
Format Journal Article
LanguageEnglish
Published Berlin WILEY-VCH Verlag 01.07.2015
WILEY‐VCH Verlag
Wiley Subscription Services, Inc
Subjects
adiation mechanism: non-thermal
Astrophysics
Awards
Blazars
Flares
galaxies: active
galaxies: jets
Kinematics
Lectures
quasars: individual (CTA 102)
Radio
radio continuum: galaxies
Spectra
Stars & galaxies
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Summary:We analysed the single‐dish radio light curves of the blazar CTA 102 during its major flare around April 2006. The modelling of these data revealed a possible travelling shock–recollimation shock interaction during the flare. To verify this hypothesis, we used multi‐epoch and multi‐frequency very‐long baseline interferometry (VLBI) observations and performed a detailed kinematic and spectral analysis. The results confirmed the hypothesis of a shock‐shock interaction causing the 2006 radio flare and provided indications for additional recollimation shocks farther downstream. (© 2015 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Bibliography:International Max Planck Research School (IMPRS) for Astronomy and Astrophysics at the Universities of Bonn and Cologne
ArticleID:ASNA201512180
COST Action MP0905 "Black Holes in a violent Universe"
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content type line 23
ISSN:0004-6337
1521-3994
DOI:10.1002/asna.201512180