Search Results - "Bournaud, Frédéric"
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Active galactic nuclei-driven outflows without immediate quenching in simulations of high-redshift disc galaxies
Published in Monthly notices of the Royal Astronomical Society (21-06-2014)“…We study outflows driven by active galactic nuclei (AGNs) using high-resolution simulations of idealized z ∼ 2 isolated disc galaxies. Episodic accretion…”
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A parsec-resolution simulation of the Antennae galaxies: formation of star clusters during the merger
Published in Monthly notices of the Royal Astronomical Society (11-01-2015)“…We present a hydrodynamical simulation of an Antennae-like galaxy merger at parsec resolution, including a multicomponent model for stellar feedback and…”
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The role of gas fraction and feedback in the stability and evolution of galactic discs: implications for cosmological galaxy formation models
Published in Monthly notices of the Royal Astronomical Society (01-08-2021)“…ABSTRACT High-redshift star-forming galaxies often have irregular morphologies with giant clumps containing up to 108−109 solar masses of gas and stars. The…”
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Simulations of supermassive black hole growth in high-redshift disc galaxies
Published in Monthly notices of the Royal Astronomical Society (01-09-2013)“…Observations suggest that a large fraction of black hole growth occurs in normal star-forming disc galaxies. Here we describe simulations of black hole…”
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THE TWO-PHASE FORMATION HISTORY OF SPIRAL GALAXIES TRACED BY THE COSMIC EVOLUTION OF THE BAR FRACTION
Published in The Astrophysical journal (20-09-2012)“…We study the evolution of galactic bars and the link with disk and spheroid formation in a sample of zoom-in cosmological simulations. Our simulation sample…”
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The Thick Disks of Spiral Galaxies as Relics from Gas-rich, Turbulent, Clumpy Disks at High Redshift
Published in The Astrophysical journal (10-12-2009)“…The formation of thick stellar disks in spiral galaxies is studied. Simulations of gas-rich young galaxies show formation of internal clumps by gravitational…”
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Starbursts triggered by intergalactic tides andinterstellar compressive turbulence
Published in Monthly notices of the Royal Astronomical Society. Letters (21-07-2014)“…Using parsec-resolution simulations of a typical galaxy merger, we study the triggering of starbursts by connecting the (inter-)galactic dynamics to the…”
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Non-linear violent disc instability with high Toomre's Q in high-redshift clumpy disc galaxies
Published in Monthly notices of the Royal Astronomical Society (21-02-2016)“…We utilize zoom-in cosmological simulations to study the nature of violent disc instability in clumpy galaxies at high redshift, z = 1–5. Our simulated…”
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Bulge Formation by the Coalescence of Giant Clumps in Primordial Disk Galaxies
Published in The Astrophysical journal (20-11-2008)“…Gas-rich disks in the early universe are highly turbulent and have giant star-forming clumps. Models suggest that the clumps form by gravitational…”
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Unstable Disks at High Redshift: Evidence for Smooth Accretion in Galaxy Formation
Published in The Astrophysical journal (01-04-2009)“…Galaxies above redshift 1 can be very clumpy, with irregular morphologies dominated by star complexes as large as 2 kpc and as massive as a few X108 or 109 M …”
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The Properties of the Interstellar Medium of Galaxies across Time as Traced by the Neutral Atomic Carbon [C i]
Published in The Astrophysical journal (10-02-2020)“…We report Atacama Large Millimeter Array observations of the neutral atomic carbon transitions [C i] and multiple CO lines in a sample of ∼30 main-sequence…”
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A Survey of Atomic Carbon [C i] in High-redshift Main-sequence Galaxies
Published in The Astrophysical journal (10-12-2018)“…We present the first results of an Atacama Large Millimeter Array survey of the lower fine-structure line of atomic carbon [C i] in far-infrared-selected…”
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STAR FORMATION LAWS AND THRESHOLDS FROM INTERSTELLAR MEDIUM STRUCTURE AND TURBULENCE
Published in The Astrophysical journal (20-11-2012)“…We present an analytical model of the relation between the surface density of gas and star formation rate in galaxies and clouds, as a function of the presence…”
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THERMAL AND RADIATIVE ACTIVE GALACTIC NUCLEUS FEEDBACK HAVE A LIMITED IMPACT ON STAR FORMATION IN HIGH-REDSHIFT GALAXIES
Published in The Astrophysical journal (10-02-2015)“…The effects of active galactic nuclei (AGNs) on their host galaxies depend on the coupling between the injected energy and the interstellar medium (ISM). Here,…”
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The ATLAS3D project - XV. Benchmark for early-type galaxies scaling relations from 260 dynamical models: mass-to-light ratio, dark matter, Fundamental Plane and Mass Plane
Published in Monthly notices of the Royal Astronomical Society (01-07-2013)“…We study the volume-limited and nearly mass-selected (stellar mass M stars 6 × 109 M) ATLAS3D sample of 260 early-type galaxies (ETGs, ellipticals Es and…”
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Hierarchical fragmentation in high redshift galaxies revealed by hydrodynamical simulations
Published in Monthly notices of the Royal Astronomical Society (01-04-2021)“…ABSTRACT High-redshift star-forming galaxies have very different morphologies compared to nearby ones. Indeed, they are often dominated by bright star-forming…”
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THE LONG LIVES OF GIANT CLUMPS AND THE BIRTH OF OUTFLOWS IN GAS-RICH GALAXIES AT HIGH REDSHIFT
Published in The Astrophysical journal (01-01-2014)“…We present 3.5-7 pc resolution adaptive mesh refinement simulations of high-redshift disks including photoionization, radiation pressure, and supernovae…”
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The ATLAS3D project - I. A volume-limited sample of 260 nearby early-type galaxies: science goals and selection criteria
Published in Monthly notices of the Royal Astronomical Society (01-05-2011)“…The ATLAS3D project is a multiwavelength survey combined with a theoretical modelling effort. The observations span from the radio to the millimetre and…”
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A DIVERSITY OF PROGENITORS AND HISTORIES FOR ISOLATED SPIRAL GALAXIES
Published in The Astrophysical journal (01-09-2012)“…We analyze a suite of 33 cosmological simulations of the evolution of Milky-Way-mass galaxies in low-density environments. Our sample spans a broad range of…”
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