A new view on the M87 jet origin: Turbulent loading leading to large-scale episodic wiggling
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F17%3A00484586" target="_blank" >RIV/67985815:_____/17:00484586 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1051/0004-6361/201629469" target="_blank" >http://dx.doi.org/10.1051/0004-6361/201629469</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/201629469" target="_blank" >10.1051/0004-6361/201629469</a>
Alternative languages
Result language
angličtina
Original language name
A new view on the M87 jet origin: Turbulent loading leading to large-scale episodic wiggling
Original language description
We aim to decipher some of the kinematic puzzles in the pc-scale jet with the analysis we present here. We find an indication for apparent superluminal motion in the jet. Moreover, we present evidence for acceleration between 0.5 and 10 mas of core separation. The data suggest that the central part of M87 at 15 GHz seems to be rotating. Jet components and counter-jet components are ejected in different directions under varying angles, explaining the impression of a broad opening angle. In this paper we present evidence for two different operating modes of the jet of M87. The jet switches between two phases: i) the jet ridge line is at least double or the jet axis is displaced vertically, and ii) an unperturbed phase where the jet ridge line remains almost straight but is smoothly curved and the jet components are aligned along a classical jet axis. The mode change occurs every couple of years. Between the two operating modes, a transition phase is visible.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astronomy & Astrophysics
ISSN
1432-0746
e-ISSN
—
Volume of the periodical
601
Issue of the periodical within the volume
May
Country of publishing house
FR - FRANCE
Number of pages
17
Pages from-to
"A52/1"-"A52/17"
UT code for WoS article
000402313500052
EID of the result in the Scopus database
2-s2.0-85018319894