The characteristics of galaxies with powerful radio jets

Zheng, X. (2023)

Doctoral Thesis

Radio jets are important to the evoultion of galaxies. However, it is still not fully understood how a radio jet can be triggered. This thesis mainly investigates the morphology and kinematics of galaxies hosting radio AGNs detected in the LOFAR Two-metre Sky Survey (LoTSS). We showed that galaxies with powerful jets have a rounder shape and weaker disc component. The radio jets of these galaxies also have a higher chance to be misaligned with the minor axis of galaxies. These works reveal the importance of the evolutionary path of galaxies to the jet-triggering process. A galaxy with a merger-dominated history would be a better breeding ground for a powerful radio jet.

• Galaxies morphology
• Galaxies kinematics
• Radio loud AGN
• Radio jets

• All authors: Zheng, X.
• Supervisor: Röttgering, H.J.A.
• Co-supervisor: Duncan, K.J.
• Committee: Snellen, I.A.G.; Kriek, M.T.; Shimwell, T.W.; Wel, A. van der; Mao, S.; Weeren, R.J. van
• Qualification: Doctor (dr.)
• Awarding Institution: Leiden Observatory, Faculty of Science, Leiden University
• Date: 2023-09-27