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Related papers: Assessing Radiation Pressure as a Feedback Mechani…

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We evaluate radiation pressure from starlight on dust as a feedback mechanism in star-forming galaxies by comparing the luminosity and flux of star-forming systems to the dust Eddington limit. The linear LFIR--L'HCN correlation provides…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Brett H. Andrews , Todd A. Thompson

The importance of radiation pressure feedback in galaxy formation has been extensively debated over the last decade. The regime of greatest uncertainty is in the most actively star-forming galaxies, where large dust columns can potentially…

Astrophysics of Galaxies · Physics 2018-05-02 Roland M. Crocker , Mark R. Krumholz , Todd A. Thompson , Julie Clutterbuck

Radiation pressure from the absorption and scattering of starlight by dust grains may be a crucial feedback mechanism in starburst galaxies and the self-gravitating parsec-scale disks that accompany the fueling of active galactic nuclei. I…

Cosmology and Nongalactic Astrophysics · Physics 2009-08-13 Todd A. Thompson

Radiation pressure on dust is an important feedback process around star clusters and may eject gas from bright sub-regions in star-forming galaxies. The Eddington ratio has previously been constructed for galaxy-averaged observations,…

Astrophysics of Galaxies · Physics 2023-06-14 Ian Blackstone , Todd A. Thompson

We show that Eddington-limited black hole luminosities can be sufficient to deplete a galaxy bulge of gas through radiation pressure, when the ionization state of the gas and the presence of dust are properly taken into account. Once…

Astrophysics · Physics 2009-09-17 A. C. Fabian , A. Celotti , M. C. Erlund

We use three-dimensional radiation hydrodynamic (RHD) simulations to study the formation of massive star clusters under the combined effects of direct ultraviolet (UV) and dust-reprocessed infrared (IR) radiation pressure. We explore a…

Astrophysics of Galaxies · Physics 2023-03-29 Shyam H. Menon , Christoph Federrath , Mark R. Krumholz

[abridged] The pressure exerted by the radiation of young stars may be an important feedback mechanism in forming star clusters and the disks of starburst galaxies. However, there is great uncertainty in how efficiently radiation couples to…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 Mark R. Krumholz , Todd A. Thompson

Massive stars provide feedback that shapes the interstellar medium of galaxies at all redshifts and their resulting stellar populations. Here we present three adaptive mesh refinement radiation hydrodynamics simulations that illustrate the…

Cosmology and Nongalactic Astrophysics · Physics 2012-11-13 John H. Wise , Tom Abel , Matthew J. Turk , Michael L. Norman , Britton D. Smith

We show that the luminosity of a star forming galaxy is capped by the production and subsequent expulsion of cosmic rays from its interstellar medium. By defining an Eddington luminosity in cosmic rays, we show that the star formation rate…

Astrophysics · Physics 2015-06-24 Aristotle Socrates , Shane W. Davis , Enrico Ramirez-Ruiz

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 in star formation sites is still unclear.…

Astrophysics of Galaxies · Physics 2015-10-15 Benny Tsz-Ho Tsang , Milos Milosavljevic

Bright star-forming galaxies radiate well below their Eddington Limit. The value of the flux-mean opacity that mediates the radiation force onto matter is orders of magnitude smaller than the UV or optical dust opacity. On empirical…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Aristotle Socrates , Lorenzo Sironi

Galaxy formation models and simulations rely on various feedback mechanisms to reproduce the observed baryonic scaling relations and galaxy morphologies. Although dwarf galaxy and giant elliptical properties can be explained using feedback…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 Rok Roškar , Romain Teyssier , Oscar Agertz , Markus Wetzstein , Ben Moore

We show that the turbulent gas in the star-forming regions of galaxies is unstable to wind formation via momentum deposition by radiation pressure or other momentum sources like supernova explosions, even if the system is below the average…

Astrophysics of Galaxies · Physics 2015-12-16 Todd A. Thompson , Mark R. Krumholz

The large columns of dusty gas enshrouding and fuelling star-formation in young, massive stellar clusters may render such systems optically thick to radiation well into the infrared. This raises the prospect that both "direct" radiation…

Astrophysics of Galaxies · Physics 2018-10-17 Roland M. Crocker , Mark R. Krumholz , Todd A. Thompson , Holger Baumgardt , Dougal Mackey

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 to the densest ultra-luminous galaxies…

Astrophysics of Galaxies · Physics 2018-04-25 Benjamin D. Wibking , Todd A. Thompson , Mark R. Krumholz

(Abridged) 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 increases with height above the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Dong Zhang , Todd A. Thompson

We investigate the radiation pressure feedback in the formation of massive stars in 1, 2, and 3D radiation hydrodynamics simulations of the collapse of massive pre-stellar cores. In contrast to previous research, we consider frequency…

Solar and Stellar Astrophysics · Physics 2011-02-18 Rolf Kuiper , Hubert Klahr , Henrik Beuther , Thomas Henning

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 UV photons on dust grains and (2) supernovae. UV…

Astrophysics · Physics 2009-11-10 Norman Murray , Eliot Quataert , Todd A. Thompson

In this paper we compare the molecular gas depletion times and mid-plane hydrostatic pressure in turbulent, star forming disk galaxies to internal properties of these galaxies. For this analysis we use 17 galaxies from the DYNAMO sample of…

Astrophysics of Galaxies · Physics 2019-01-16 Deanne B Fisher , Alberto D. Bolatto , Heidi White , Karl Glazebrook , Roberto G. Abraham , Danail Obreschkow

In recent years a number of authors have introduced methods to model the effects of radiation pressure feedback on flows of interstellar and intergalactic gas, and have posited that the forces exerted by stars' radiation output represents…

Astrophysics of Galaxies · Physics 2018-08-08 Mark R. Krumholz
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