STRUCTURAL TRANSITION in the NGC 6251 JET: AN INTERPLAY with the SUPERMASSIVE BLACK HOLE and ITS HOST GALAXY

Chih Yin Tseng, Keiichi Asada, Masanori Nakamura, Hung Yi Pu, Juan Carlos Algaba, Wen Ping Lo

研究成果: 雜誌貢獻期刊論文同行評審

28 引文 斯高帕斯(Scopus)

摘要

The structure of the NGC 6251 jet on the milliarcsecond scale is investigated using images taken with the European VLBI Network and the Very Long Baseline Array. We detect a structural transition of the jet from a parabolic to a conical shape at a distance of (1-2) ×105 times the Schwarzschild radius from the central engine, which is close to the sphere of gravitational influence of the supermassive black hole (SMBH). We also examine the jet pressure profiles with the synchrotron minimum energy assumption to discuss the physical origin of the structural transition. The NGC 6251 jet, together with the M87 jet, suggests a fundamental process of structural transition in the jets of active galactic nuclei (AGNs). Collimated AGN jets are characterized by their external galactic medium, showing that AGN jets interplay with the SMBH and its host galaxy.

原文英語
文章編號288
期刊Astrophysical Journal
833
發行號2
DOIs
出版狀態已發佈 - 2016 12月 20
對外發佈

ASJC Scopus subject areas

  • 天文和天體物理學
  • 空間與行星科學

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