Empirical constraints on the turbulence in QSO host nebulae from velocity structure function measurements

Abstract

We present the first empirical constraints on the turbulent velocity field of the diffuse circumgalactic medium around four luminous QSOs at $z\approx 0.5$--1.1. Spatially extended nebulae of $\approx 50$--100 physical kpc in diameter centered on the QSOs are revealed in [OII]$\lambda \lambda 3727,3729$ and/or [OIII]$\lambda 5008$ emission lines in integral field spectroscopic observations obtained using MUSE on the VLT. We measure the second- and third-order velocity structure functions (VSFs) over a range of scales, from $\lesssim 5$ kpc to $\approx 20$--50 kpc, to quantify the turbulent energy transfer between different scales in these nebulae. While no constraints on the energy injection and dissipation scales can be obtained from the current data, we show that robust constraints on the power-law slope of the VSFs can be determined after accounting for the effects of atmospheric seeing, spatial smoothing, and large-scale bulk flows. Out of the four QSO nebulae studied, one exhibits VSFs in spectacular agreement with the Kolmogorov law, expected for isotropic, homogeneous, and incompressible turbulent flows. The other three fields exhibit a shallower decline in the VSFs from large to small scales. However, with a limited dynamic range in the spatial scales in seeing-limited data, no constraints can be obtained for the VSF slopes of these three nebulae. For the QSO nebula consistent with the Kolmogorov law, we determine a turbulence energy cascade rate of $\approx 0.2$ cm${}^2$ s${}^{-3}$. We discuss the implication of the observed VSFs in the context of QSO feeding and feedback in the circumgalactic medium.

arXiv comment20 pages, 6 figures in main text + 9 figures in appendix, 4 tables; accepted by MNRAS

References in corpus (65)

• SciPy 1.0--Fundamental Algorithms for Scientific Computing in Python
• Astropy: A Community Python Package for Astronomy
• emcee: The MCMC Hammer
• The Astropy Project: Building an inclusive, open-science project and status of the v2.0 core package
• The Host Galaxies of AGN
• Observational Evidence of AGN Feedback
• Theoretical Modeling of Starburst Galaxies
• Planck 2018 results. I. Overview and the cosmological legacy of Planck
• Heating Hot Atmospheres with Active Galactic Nuclei
• The Circumgalactic Medium
• The MUSE second-generation VLT instrument
• Spectrum of magnetohydrodynamic turbulence
• Two accreting protoplanets around the young star PDS 70
• The Cosmic Baryon Cycle and Galaxy Mass Assembly in the FIRE Simulations
• Diffuse Lyman Alpha Emitting Halos: A Generic Property of High Redshift Star Forming Galaxies
• The Data Processing Pipeline for the MUSE Instrument
• The MUSE Hubble Ultra Deep Field Survey: I. Survey description, data reduction and source detection
• Turbulent Heating in Galaxy Clusters Brightest in X-rays
• Ubiquitous giant Ly $\alpha$ nebulae around the brightest quasars at $z\sim 3.5$ revealed with MUSE
• On the universality of supersonic turbulence
• Extended Lyman alpha haloes around individual high-redshift galaxies revealed by MUSE
• Markov Chain Monte Carlo Methods for Bayesian Data Analysis in Astronomy
• Supernova Driving. I. The Origin of Molecular Cloud Turbulence
• QSO MUSEUM I: A sample of 61 extended Ly$\alpha$-emission nebulae surrounding $z\sim 3$ quasars
• Shaken Snow Globes: Kinematic Tracers of the Multiphase Condensation Cascade in Massive Galaxies, Groups, and Clusters
• Characterizing Circumgalactic Gas around Massive Ellipticals at z~0.4 - II. Physical Properties and Elemental Abundances
• Multiphase Gas and the Fractal Nature of Radiative Turbulent Mixing Layers
• Quasar-Mode Feedback in Nearby Type 1 Quasars: Ubiquitous Kiloparsec-Scale Outflows and Correlations with Black Hole Properties
• Kolmogorov-Burgers Model for Star Forming Turbulence
• Astrophysical hydromagnetic turbulence
• The Column Density, Kinematics, and Thermal State of Metal-Bearing Gas within the Virial Radius of z~2 Star-Forming Galaxies in the Keck Baryonic Structure Survey
• Small Scale Structure at High Redshift: II. Physical Properties of the CIV Absorbing Clouds
• A 100-kiloparsec wind feeding the circumgalactic medium of a massive compact galaxy
• A young star-forming galaxy at z = 3.5 with an extended Ly\,$\alpha$ halo seen with MUSE
• Detection of Ne VIII in the Low-Redshift Warm-Hot IGM
• Survival and mass growth of cold gas in a turbulent, multiphase medium
• Sizes and Kinematics of Extended Narrow-Line Regions in Luminous Obscured AGN Selected by Broadband Images
• Direct Detection of Black Hole-Driven Turbulence in the Centers of Galaxy Clusters
• Temperature and Kinematics of CIV Absorption Systems
• Multi-phase Circum-Galactic Medium probed with MUSE and ALMA
• The Cosmic Ultraviolet Baryon Survey (CUBS) I. Overview and the diverse environments of Lyman limit systems at z<1
• Mixing in Supersonic Turbulence
• MUSEQuBES: Calibrating the redshifts of Ly α emitters using stacked circumgalactic medium absorption profiles
• Galaxy and Quasar Fueling Caught in the Act from the Intragroup to the Interstellar Medium
• The Cosmic Ultraviolet Baryon Survey (CUBS) -- III. Physical properties and elemental abundances of Lyman limit systems at $z<1$
• Mapping the Gas Turbulence in the Coma Cluster: Predictions for Astro-H
• Velocity structure functions in multiphase turbulence: interpreting kinematics of H$\alpha$ filaments in cool core clusters
• Measuring Turbulence with Young Stars in the Orion Complex
• Searching for proto-planets with MUSE
• Turbulence in Milky Way Star-Forming Regions Traced by Young Stars and Gas
• Turbulence in the Ionized Gas of the Orion Nebula
• The Cosmic Ultraviolet Baryon Survey (CUBS) IV: The Complex Multiphase Circumgalactic Medium as Revealed by Partial Lyman Limit Systems
• How gas flows shape the stellar-halo mass relation in the EAGLE simulation
• Bubble-driven Gas Uplift in Galaxy Clusters and its Velocity Features
• The Velocity Statistics of Turbulent Clouds in the Presence of Gravity, Magnetic fields, Radiation, and Outflow Feedback
• As a matter of tension -- kinetic energy spectra in MHD turbulence
• Outskirts of Distant Galaxies In Absorption
• The Effect of Galactic Feedback on Gas Accretion and Wind Recycling
• How do velocity structure functions trace gas dynamics in simulated molecular clouds?
• Passive Scalar Structures in Supersonic Turbulence
• Mapping the Morphology and Kinematics of a Lyman-alpha-selected Nebula at z=3.15 with MUSE
• Projected velocity statistics of interstellar turbulence
• Supersonic turbulence in Giant HII Regions: clues from 30 Doradus
• Resolved galactic superwinds reconstructed around their host galaxies at z>3
• An analysis of the turbulence in the central region of M 42 through structure functions

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