ATTENZIONE!!! IL SISTEMA E' UTILIZZABILE ESCLUSIVAMENTE IN MODALITA' "CONSULTAZIONE". CAUSA PROBLEMI TECNICI, SI PREGA DI NON EFFETTUARE L'AUTENTICAZIONE, FINO A NUOVA COMUNICAZIONE. GRAZIE
 

Evidence of Jet-Clump Interaction: A Flip of the Radio Jet Head of 3C 84

Journal
Date Issued
2018
Author(s)
Kino, M.
•
Wajima, K.
•
Kawakatu, N.
•
Nagai, H.
•
•
•
Hada, K.
•
Niinuma, K.
•
DOI
Abstract
Radio jets in active galaxies have been expected to interact with circumnuclear environments in their early phase evolutions. By performing the multi-epoch monitoring observation with the KVN and VERA Array at 43 GHz, we investigate the kinematics of the notable newborn bright component C3 located at the tip of the recurrent jet of 3C 84. During 2015 August-September, we discover the flip of C3 and the amount of the flip is about 0.4 mas in angular scale, which corresponds to 0.14 parsec in physical scale. After the flip of C3, it wobbled at the same location for a few months and then it restarted to propagate toward the southern direction. The flux density of C3 coherently showed the monotonic increase during the observation period. The flip is in good agreement with hydrodynamical simulations of jets in clumpy ambient medium. We estimate the number density of the putative clump based on the momentum balance between the jet thrust and the ram pressure from the clump and it is about 103-5 cm-3. We briefly discuss possible origins of the clump.
Volume
864
Issue
2
Start page
118
Uri
Url
Issn Identifier
0004-637X
Ads BibCode
2018ApJ...864..118K
Rights
open.access
File(s)
Loading...
Thumbnail Image
Name

1808.08855.pdf

Description
postprint
Size

466.52 KB

Format

Adobe PDF

Checksum (MD5)

63b191ed4f161e4e26ae4f3125c41595

Loading...
Thumbnail Image
Name

Kino_2018_ApJ_864_118.pdf

Description
Pdf editoriale
Size

3.98 MB

Format

Adobe PDF

Checksum (MD5)

cfa6968dc50400e507cb50cd1354a42a