Is jet re-orientation the elusive trigger for star formation suppression in radio galaxies?

Autor:	Garofalo, David, Moravec, Emily, Macconi, Duccio, Singh, Chandra B.
Rok vydání:	2022
Předmět:	Astrophysics - High Energy Astrophysical Phenomena Astrophysics - Astrophysics of Galaxies
Druh dokumentu:	Working Paper
DOI:	10.1088/1538-3873/ac9714
Popis:	Jet re-orientation associated with the time evolution of radio quasars explains the formation of X-shaped radio galaxies and their preference for isolated environments. But since X-shaped radio galaxies are generally not found in dense environments (e.g. groups/clusters), the jet re-orientation phenomenon for radio galaxies in groups and clusters has been ignored. We take a closer look at the re-orientation of FRI jets with respect to FRII jets, and find that it may constitute the as-yet unidentified trigger for star formation suppression in radio galaxies. We show how the recently explored radio "red geyser" galaxies can be interpreted in this context and ultimately reveal a deeper understanding of why FRII radio galaxies are on one side of the star formation enhancement/suppression divide compared to FRI radio galaxies. Comment: 12 pages, 5 figures, Accepted for publication in Publications of the Astronomical Society of the Pacific (PASP) journal
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2210.12961 Zobrazit plný text záznamu View this record from Arxiv