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Title: Numerical Simulations of a Jet–Cloud Collision and Starburst: Application to Minkowski’s Object

Journal Article · · The Astrophysical Journal (Online)
ORCiD logo [1];  [2]; ORCiD logo [3]; ORCiD logo [4];  [1]
  1. College of Charleston, SC (United States). Department of Physics & Astronomy
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  3. Univ. of California, Berkeley, CA (United States). Astronomy Department; Eureka Scientific, Inc., Oakland, CA (United States)
  4. National Radio Astronomy Observatory, Charlottesville, VA (United States)

In this work, we present results of three-dimensional, multi-physics simulations of an AGN jet colliding with an intergalactic cloud. The purpose of these simulations is to assess the degree of "positive feedback," i.e., jet-induced star formation, that results. We have specifically tailored our simulation parameters to facilitate a comparison with recent observations of Minkowski's Object (MO), a stellar nursery located at the termination point of a radio jet coming from galaxy NGC 541. As shown in our simulations, such a collision triggers shocks, which propagate around and through the cloud. These shocks condense the gas and under the right circumstances may trigger cooling instabilities, creating runaway increases in density, to the point that individual clumps can become Jeans unstable. Our simulations provide information about the expected star formation rate, total mass converted to H I, H2, and stars, and the relative velocity of the stars and gas. Finally, our results confirm the possibility of jet-induced star formation, and agree well with the observations of MO.

Research Organization:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1438764
Report Number(s):
LLNL-JRNL-724661; TRN: US1900516
Journal Information:
The Astrophysical Journal (Online), Vol. 850, Issue 2; ISSN 1538-4357
Publisher:
Institute of Physics (IOP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 25 works
Citation information provided by
Web of Science

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Cited By (12)

Discovery of a galaxy overdensity around a powerful, heavily obscured FRII radio galaxy at z = 1.7: star formation promoted by large-scale AGN feedback? journal November 2019
Relativistic jet feedback – III. Feedback on gas discs journal July 2018
Jets blowing bubbles in the young radio galaxy 4C 31.04 journal January 2019
Ultra-diffuse galaxies without dark matter journal July 2019
Evidence of Jet–Clump Interaction: A Flip of the Radio Jet Head of 3C 84 journal September 2018
Nonequilibrium Ionization States within Galactic Outflows: Explaining Their O vi and N v Column Densities journal April 2019
Catastrophic Cooling in Superwinds: Line Emission and Non-equilibrium Ionization journal December 2019
Relativistic jet feedback III: feedback on gas disks text January 2018
Jets blowing bubbles in the young radio galaxy 4C 31.04 text January 2018
Non-equilibrium Ionization States Within Galactic Outflows: Explaining Their O VI and N V Column Densities text January 2019
Ultra-diffuse galaxies without dark matter text January 2019
Catastrophic Cooling in Superwinds: Line Emission and Non-equilibrium Ionization text January 2019

Figures / Tables (7)


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