English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Multi-epoch Very Long Baseline Interferometry (VLBI) study of the sub-pcscale jet of 3C 84 is presented. We carried out 14-epoch VLBI observationsduring 2006-2009 with the Japanese VLBI Network (JVN) and the VLBI Explorationof Radio Astrometry (VERA), immediately following the radio outburst that beganin 2005. We confirmed that the outburst was associated with the central ~1 pccore, accompanying the emergence of a new component. This is striking evidenceof the recurrence of jet activity. The new component became brighter during2008, in contrast to the constant gamma-ray emission that was observed with theFermi Gamma-ray Space Telescope during the same time. We found that theprojected speed of the new component is 0.23c from 2007/297 (2007 October 24)to 2009/114 (2009 April 24). The direction of movement of this componentdiffers from that of the pre-existing component by ~40 degree. This is thefirst measurement of kinematics of a sub-pc jet in a gamma-ray active phase.Possible detection of jet deceleration and the jet kinematics in connectionwith the gamma-ray emission is discussed.

VLBI Monitoring of 3C 84 (NGC 1275) in Early Phase of the 2005 Outburst