The distribution and lifetime of powerful radio galaxies as a function of environment and redshift

Scientific Reports

David Garofalo¹  Alexa Zack¹  Chandra B. Singh² 

[1] Department of Physics, Kennesaw State University;The Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University;

关键词: Radio Galaxies;    Jet Power;    Black Hole Spin;    Retrograde Mode;    Paradigm Spine;   

DOI  :  10.1038/s41598-018-33532-6

来源: DOAJ

【 摘 要 】

Abstract Correlations between jet power and active time for z < 0.1 high excitation and low excitation radio galaxies are explored as well as evidence in favor of a specific, non-random distribution for these objects including mid-infrared emitting radio galaxies as a function of environment and redshift. In addition, so-called weak line radio galaxies with FRII jet morphology have been identified as a class of active galaxies in the process of shutting down. This paper identifies common features between these seemingly disparate phenomena described above for the population of radio galaxies, and strings them together by way of a simple phenomenological framework that has shed light on the radio loud/radio quiet dichotomy, the jet-disk connection, and the distribution of all active galaxies as a function of redshift.

【 授权许可】

Unknown