Radio jet precession in M 81
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F23%3A00134183" target="_blank" >RIV/00216224:14310/23:00134183 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1051/0004-6361/202245506" target="_blank" >https://doi.org/10.1051/0004-6361/202245506</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/202245506" target="_blank" >10.1051/0004-6361/202245506</a>
Alternative languages
Result language
angličtina
Original language name
Radio jet precession in M 81
Original language description
We report four novel position angle measurements of the core region M 81* at 5 GHz and 8 GHz, which confirm the presence of sinusoidal jet precession in the M 81 jet region, as suggested by Marti-Vidal et al. (2011, A&A, 533, A111). The model makes three testable predictions regarding the evolution of the jet precession, which we test in our data with observations from 2017, 2018, and 2019. Our data confirm a precession period of similar to 7 yr on top of a small linear drift. We further show that two 8 GHz observation are consistent with a precession period of similar to 7 yr but show a different time lag with respect to the 5 GHz and 1.7 GHz observations. We do not find a periodic modulation of the light curve with the jet precession and therefore rule out a Doppler nature for the historic 1998-2002 flare. Our observations are consistent with either a binary black hole origin for the precession or the Lense-Thirring effect.
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
<a href="/en/project/GX21-13491X" target="_blank" >GX21-13491X: Exploring the Hot Universe and Understanding Cosmic Feedback</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astronomy and Astrophysics
ISSN
0004-6361
e-ISSN
1432-0746
Volume of the periodical
672
Issue of the periodical within the volume
April
Country of publishing house
FR - FRANCE
Number of pages
10
Pages from-to
1-10
UT code for WoS article
000964490900009
EID of the result in the Scopus database
2-s2.0-85153330385