Resolved simulations of jet–ISM interaction: Implications for gas dynamics and star formation

Abstract

Relativistic jets can interact with the ambient gas distribution of the host galaxy, before breaking out to larger scales. In the past decade, several studies have simulated jet-driven outflows to understand how they affect the nearby environment, and over what spatial and temporal scales such interactions occur.The simulations are able to capture the interaction of the jets with the turbulent clumpy interstellar medium and the resultant energetics of the gas. In this review, we summarize the results of such recent studies and discuss their implications on the evolution of the dynamics of the gas distribution and the star formation rate.

Observations and Simulations of Radio Emission and Magnetic Fields in Minkowski's Object

“…Although JISF is well supported by simulations (Gaibler et al 2012;Mukherjee et al 2018Mukherjee et al , 2021 and observations (Chambers et al 1987;McCarthy et al 1987;Salomé et al 2015;Nesvadba et al 2020), and despite its importance in understanding galaxy formation, only a handful of systems have been clearly identified and studied in this context. One of the best examples is the z = 0.019 "Minkowski's Object" (MO) in Abell 194, where a burst of star formation is being triggered by the radio jet from the nearby active galaxy NGC 541 (van Breugel et al 1985;Croft et al 2006, hereafter C06).…”

WALLABY pre-pilot survey: Radio continuum properties of the Eridanus supergroup

“…The HI hole in the central region of this galaxy is coincident with the jet structure and suggest the possibility that the AGN activity may be related to the lack of HI gas in this central region. Jet-ISM interactions have been posited to both suppress (via gas ejection, suppressing halo gas accretion or induced turbulence) and enhance (via shock compression) SF depending on a large number of factors (see Mukherjee et al 2018;Mandal et al 2021;Mukherjee, Bicknell, & Wagner 2021;Girdhar et al 2022). However, an in depth analysis of jet-ISM interactions is beyond the scope of this paper.…”

Exploring the Fundamental Mechanism in Driving Highest-velocity Ionized Outflows in Radio AGNs

“…While some individual studies propose that ionized outflows can be driven through the interaction of the radio jet with the ISM [69,70], others discuss that the connection between radio jet and outflowing gas depends on their morphology and position angle [71]. Some simulation studies (see Mukherjee et al [72] for a review) suggest that the distribution of gas in the host-galaxy can be significantly impacted by relativistic radio jets, however, the resultant velocities might be insufficient to unbind an important portion of the gas. In this section, we explore the connection between radio activity and highest-velocity ionized outflows in our sample.…”