External pressure-triggering of star formation in a disc galaxy: a template for positive feedback
arXiv:1507.00730 · doi:10.1093/mnras/stv2551
Abstract
Feedback from active galactic nuclei (AGN) has often been invoked both in simulations and in interpreting observations for regulating star formation and quenching cooling flows in massive galaxies. AGN activity can, however, also over-pressurise the dense star-forming regions of galaxies and thus enhance star formation, leading to a positive feedback effect. To understand this pressurisation better, we investigate the effect of an ambient external pressure on gas fragmentation and triggering of starburst activity by means of hydrodynamical simulations. We find that moderate levels of over-pressurisation of the galaxy boost the global star formation rate of the galaxy by an order of magnitude, turn stable discs unstable, and lead to significant fragmentation of the gas content of the galaxy, similar to what is observed in high redshift galaxies.
submitted to MNRAS
References in corpus (23)
- A unified model for AGN feedback in cosmological simulations of structure formation
- Star Formation and Feedback in Smoothed Particle Hydrodynamic Simulations--I. Isolated Galaxies
- Direct cosmological simulations of the growth of black holes and galaxies
- On the Density Distribution in Star-forming Interstellar Clouds
- The black hole mass -- stellar velocity dispersion correlation: bulges versus pseudobulges
- Blowin' in the wind: both `negative' and `positive' feedback in an obscured high-z Quasar
- Black hole evolution: I. Supernova-regulated black hole growth
- Interactions of a Light Hypersonic Jet with a Non-Uniform Interstellar Medium
- Minkowski's Object: A Starburst Triggered by a Radio Jet, Revisited
- Towards a more realistic sink particle algorithm for the RAMSES code
- The accretion mechanism in low-power radio galaxies
- Rapidly growing black holes and host galaxies in the distant Universe from the Herschel Radio Galaxy Evolution Project
- Global star formation revisited
- Star formation in z>1 3CR host galaxies as seen by Herschel
- Mapping the Dynamics of a Giant Ly-alpha Halo at z=4.1 with MUSE: The Energetics of a Large Scale AGN-Driven Outflow around a Massive, High-Redshift Galaxy
- Jet-induced star formation in 3C 285 and Minkowski Object
- AGN Jet-induced Feedback in Galaxies. I. Suppression of Star Formation
- Asymmetries in Extragalactic Double Radio Sources: Clues from 3D Simulations of Jet - Disc Interaction
- Playing with positive feedback: external pressure-triggering of a star-forming disc galaxy
- PKS2250-41: a case study for triggering
- Stellar Signatures of AGN Jet Triggered Star Formation
- Collapse and fragmentation of molecular clouds under pressure
- An Increasing Stellar Baryon Fraction in Bright Galaxies at High Redshift
Cited by in corpus (43)
- Cool Outflows in Galaxies and their Implications
- Relativistic jet feedback III: feedback on gas disks
- Widespread star formation inside galactic outflows
- Outflows Driven by Quasars in High-Redshift Galaxies with Radiation Hydrodynamics
- Do AGN outflows quench or enhance star formation?
- How the super-Eddington regime regulates black hole growth in high-redshift galaxies
- A Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE).IX. The effects of ram pressure stripping down to the scale of individual HII regions in the dwarf galaxy IC 3476
- Complex AGN feedback in the Teacup galaxy. A powerful ionised galactic outflow, jet-ISM interaction, and evidence for AGN-triggered star formation in a giant bubble
- Integral field spectroscopy of nearby QSOs II. The molecular gas content and condition for star formation
- Unravelling the complex structure of AGN-driven outflows: II. Photoionization and energetics
- Impact of relativistic jets on the star formation rate: a turbulence-regulated framework
- Determining star-formation rates in Active Galactic Nuclei hosts via stellar population synthesis
- The Variability of the Star Formation Rate in Galaxies: I. Star Formation Histories Traced by EW(H) and EW(H)
- Stellar and AGN feedback in isolated early-type galaxies: the role in regulating star formation and ISM properties
- Local positive feedback in the overall negative: the impact of quasar winds on star formation in the FIRE cosmological simulations
- Jet-driven AGN feedback on molecular gas and low star-formation efficiency in a massive local spiral galaxy with bright X-ray halo
- Catastrophic Cooling in Superwinds: Line Emission and Non-equilibrium Ionization
- Gemini NIFS survey of feeding and feedback in nearby Active Galaxies -- V. Molecular and Ionised Gas Kinematics
- Impact of AGN feedback on galaxies and their multiphase ISM across cosmic time
- The impact of AGN-driven winds on physical and observable galaxy sizes
- Mapping the stellar population and gas excitation of MaNGA galaxies with MEGACUBES. Results for AGN versus control sample
- The small observed scale of AGN--driven outflows, and inside--out disc quenching
- Gemini NIFS survey of feeding and feedback processes in nearby Active Galaxies: VI -- Stellar Populations
- The Black Hole-Galaxy Connection: Interplay between Feedback, Obscuration, and Host Galaxy Substructure
- Oxygen abundances in the narrow line regions of Seyfert galaxies and the metallicity-luminosity relation
- Non-equilibrium Ionization States Within Galactic Outflows: Explaining Their O VI and N V Column Densities
- Resolved simulations of jet-ISM interaction: Implications for gas dynamics and star formation
- Star Formation in Simulated Galaxies: Understanding the Transition to Quiescence at M
- SUPER VII. Morphology and kinematics of H emission in AGN host galaxies at Cosmic noon using SINFONI
- Radio jet-ISM interaction and positive radio-mechanical feedback in Abell 1795
- Explaining the enhanced star formation rate of Jellyfish galaxies in galaxy clusters
- Collective properties of quasar narrow associated absorption lines
- A CO Funnel in the Galactic Centre: Molecular Counterpart of the Northern Galactic Chimney?
- Regulation of star formation by large scale gravito-turbulence
- Jet-Feedback on kpc scales: a review
- Positive feedback at the disc-halo interface
- AGN Outflow Shocks on Bonnor-Ebert Spheres
- The equilibrium of over-pressurised polytropes
- Estimating lifetimes of uv-selected massive galaxies at in the cosmos/ultravista field through clustering analyses
- Observations and Simulations of Radio Emission and Magnetic Fields in Minkowski's Object
- The incidence of X-ray AGN and non-AGN galaxies in the far-infrared: insights into host galaxy properties and AGN obscuration
- Formation of galactic bulges from the cold gas filaments in high-redshift dark matter halos
- Disks of Stars in the Galactic center triggered by Tidal Disruption Events