Radiation Hydrodynamic Simulations of Dust-driven Winds

@article{Zhang2017RadiationHS,
  title={Radiation Hydrodynamic Simulations of Dust-driven Winds},
  author={Dong Zhang and Shane W. Davis},
  journal={The Astrophysical Journal},
  year={2017},
  volume={839},
  pages={54}
}
We study dusty winds driven by radiation pressure in the atmosphere of a rapidly star-forming environment. We apply the variable Eddington tensor algorithm to re-examine the two-dimensional radiation hydrodynamic problem of a column of gas that is accelerated by a constant infrared radiation flux. In the absence of gravity, the system is primarily characterized by the initial optical depth of the gas. We perform several runs with different initial optical depths and resolutions. We find that… 

Figures and Tables from this paper

Dusty Cloud Acceleration by Radiation Pressure in Rapidly Star-Forming Galaxies
We perform two-dimensional and three-dimensional radiation hydrodynamic simulations to study cold clouds accelerated by radiation pressure on dust in the environment of rapidly star-forming galaxies
Radiation pressure in galactic discs: stability, turbulence, and winds in the single-scattering limit
The radiation force on dust grains may be dynamically important in driving turbulence and outflows in rapidly star-forming galaxies. Recent studies focus on the highly optically-thick limit relevant
Driving gas shells with radiation pressure on dust in radiation-hydrodynamic simulations
We present radiation-hydrodynamic simulations of radiatively-driven gas shells launched by bright active galactic nuclei (AGN) in isolated dark matter haloes. Our goals are (1) to investigate the
Dusty Cloud Acceleration with Multiband Radiation
We perform two-dimensional and three-dimensional simulations of cold, dense clouds, which are accelerated by radiation pressure on dust relative to a hot, diffuse background gas. We examine the
Simulating an isolated dwarf galaxy with multichannel feedback and chemical yields from individual stars
In order to better understand the relationship between feedback and galactic chemical evolution, we have developed a new model for stellar feedback at grid resolutions of only a few parsecs in global
Efficacy of early stellar feedback in low gas surface density environments
We present a suite of high-resolution radiation hydrodynamic simulations of a small patch (1 kpc2) of the interstellar medium (ISM) performed with arepo-rt, with the aim to quantify the efficacy of
The energetics of AGN radiation pressure-driven outflows
The increasing observational evidence of galactic outflows is considered as a sign of active galactic nucleus (AGN) feedback in action. However, the physical mechanism responsible for driving the
A Review of the Theory of Galactic Winds Driven by Stellar Feedback
Galactic winds from star-forming galaxies are crucial to the process of galaxy formation and evolution, regulating star formation, shaping the stellar mass function and the mass-metallicity relation,
Quenching star formation with quasar outflows launched by trapped IR radiation
We present cosmological radiation-hydrodynamic simulations, performed with the code Ramses-RT, of radiatively-driven outflows in a massive quasar host halo at $z = 6$. Our simulations include both
AGN anisotropic radiative feedback set by black hole spin
We consider the impact of anisotropic radiation on the active galactic nucleus (AGN) radiative dusty feedback. The radiation pattern originating from the accretion disc is determined by the central
...
1
2
3
...

References

SHOWING 1-10 OF 42 REFERENCES
Numerical simulations of radiatively driven dusty winds
[abridged] Radiation pressure on dust grains may be an important mechanism in driving winds in a wide variety of astrophysical systems. However, the efficiency of the coupling between the radiation
DIRECT NUMERICAL SIMULATION OF RADIATION PRESSURE-DRIVEN TURBULENCE AND WINDS IN STAR CLUSTERS AND GALACTIC DISKS
The pressure exerted by the radiation of young stars may be an important feedback mechanism that drives turbulence and winds in forming star clusters and the disks of starburst galaxies. However,
Radiation pressure driving of a dusty atmosphere
Radiation pressure can be dynamically important in star-forming environments such as ultra-luminous infrared and submillimeter galaxies. Whether and how radiation drives turbulence and bulk outflows
Radiation pressure-driven galactic winds from self-gravitating discs
We study large-scale winds driven from uniformly bright self-gravitating discs radiating near the Eddington limit. We show that the ratio of the radiation pressure force to the gravitational force
RADIATION FEEDBACK IN ULIRGs: ARE PHOTONS MOVERS AND SHAKERS?
We perform multidimensional radiation hydrodynamics simulations to study the impact of radiation forces on atmospheres composed of dust and gas. Our setup closely follows that of Krumholz and
Dynamics of dusty radiation-pressure-driven shells and clouds: fast outflows from galaxies, star clusters, massive stars, and AGN
It is typically assumed that radiation pressure driven winds are accelerated to an asymptotic velocity of V ~ v_esc, where v_esc is the escape velocity from the central source. We note that this is
A scheme for radiation pressure and photon diffusion with the M1 closure in ramses-rt
We describe and test an updated version of radiation-hydrodynamics in the RAMSES code, that includes three new features: (i) radiation pressure on gas, (ii) accurate treatment of radiation diffusion
Radiative Rayleigh-Taylor instabilities
We perform analytic linear stability analyses of an interface separating two stratified media threaded by a radiation flux, a configuration relevant in several astrophysical contexts. We develop a
ON THE MAXIMUM LUMINOSITY OF GALAXIES AND THEIR CENTRAL BLACK HOLES: FEEDBACK FROM MOMENTUM-DRIVEN WINDS
We investigate large-scale galactic winds driven by momentum deposition. Momentum injection is provided by (1) radiation pressure produced by the continuum absorption and scattering of photons on
Radiation Pressure-supported Starburst Disks and Active Galactic Nucleus Fueling
We consider the structure of marginally Toomre-stable starburst disks under the assumption that radiation pressure on dust grains provides the dominant vertical support against gravity. This
...
1
2
3
4
5
...