TY - JOUR
T1 - A mechanism for triple-ridge emission structure of AGN jets
AU - Ogihara, Taiki
AU - Takahashi, Kazuya
AU - Kenji, Toma
N1 - Funding Information:
We thank the participants in the Mizusawa Project Meetings in 2016, 2017, and 2018 for fruitful discussions on relativistic jets. Numerical calculations were performed on Draco, a computer cluster of the Frontier Research Institute for Interdisciplinary Sciences in Tohoku University. T.O. acknowledges financial support from Graduate Program on Physics for the Universe (GP-PU), Tohoku University. This work is partly supported by JSPS Grants-in-Aid for Scientific Research 17H06362 (K. Takahashi), 18H01245 (K. Toma), and also by a JST grant Building of Consortia for the Development of Human Resources in Science and Technology (K. Toma).
Publisher Copyright:
© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).
PY - 2019
Y1 - 2019
N2 - Recent radio very long baseline interferometry (VLBI) observations reveal a triple-ridge emission structure of the relativistic jet in M 87 radio galaxy that consists of the conventional limb-brightened feature and a narrow central ridge. Motivated by these observations, we examine a steady axisymmetric force-free model of a jet driven by the central black hole with its electromagnetic structure being consistent with general relativistic magnetohydrodynamic (GRMHD) simulations, and shown that the model with a velocity field associated with the electromagnetic field and a simple Gaussian distribution of emitting electrons at the jet base can produce the triple-ridge structure. This study will be complementary to theoretical analyses of the future observations of active galactic nucleus (AGN) jets.
AB - Recent radio very long baseline interferometry (VLBI) observations reveal a triple-ridge emission structure of the relativistic jet in M 87 radio galaxy that consists of the conventional limb-brightened feature and a narrow central ridge. Motivated by these observations, we examine a steady axisymmetric force-free model of a jet driven by the central black hole with its electromagnetic structure being consistent with general relativistic magnetohydrodynamic (GRMHD) simulations, and shown that the model with a velocity field associated with the electromagnetic field and a simple Gaussian distribution of emitting electrons at the jet base can produce the triple-ridge structure. This study will be complementary to theoretical analyses of the future observations of active galactic nucleus (AGN) jets.
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M3 - Conference article
AN - SCOPUS:85081128081
SN - 1824-8039
VL - 354
JO - Proceedings of Science
JF - Proceedings of Science
M1 - 074
T2 - 7th High Energy Phenomena in Relativistic Outflows, HEPRO 2019
Y2 - 9 July 2019 through 12 July 2019
ER -