Radio jet precession in M 81

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Radio jet precession in M 81

Popis výsledku v původním jazyce

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&amp;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.

Název v anglickém jazyce

Radio jet precession in M 81

Popis výsledku anglicky

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&amp;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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

<a href="/cs/project/GX21-13491X" target="_blank" >GX21-13491X: Zkoumání žhavého vesmíru a porozumění kosmické zpětné vazbě</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Astronomy and Astrophysics

ISSN

0004-6361

e-ISSN

1432-0746

Svazek periodika

672

Číslo periodika v rámci svazku

April

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

10

Strana od-do

1-10

Kód UT WoS článku

000964490900009

EID výsledku v databázi Scopus

2-s2.0-85153330385