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Related papers: Dust Eddington Ratios for Star-Forming Galaxy Subr…

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Radiation pressure from the absorption and scattering of starlight by dust grains may be an important feedback mechanism in regulating star-forming galaxies. We compile data from the literature on star clusters, star-forming subregions,…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Brett H. Andrews , Todd A. Thompson

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 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

We investigated the influence of the Eddington ratio on sub-parsec-scale outflows in active galactic nuclei (AGNs) with supermassive black holes (SMBHs) masses of $10^7$ M$_{\odot}$ using two-dimensional radiation hydrodynamics simulations.…

Astrophysics of Galaxies · Physics 2024-11-13 Yuki Kudoh , Keiichi Wada , Nozomu Kawakatu , Mariko Nomura

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

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

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

[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

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

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

Stars form within dense cores composed of both gas and dust within molecular clouds. However, despite the crucial role that dust plays in the star formation process, its dynamics is frequently overlooked, with the common assumption being a…

Astrophysics of Galaxies · Physics 2025-02-21 Nadine H. Soliman , Philip F. Hopkins , Michael Y. Grudić

Radiation pressure on dust grains may be an important physical mechanism driving galaxy-wide superwinds in rapidly star-forming galaxies. We calculate the combined dust and gas Eddington ratio (Gamma) for the archetypal superwind of M82. By…

Astrophysics of Galaxies · Physics 2016-12-14 Carl T. Coker , Todd A. Thompson , Paul Martini

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

We develop a dust efflux model of radiation pressure acting on dust grains which successfully reproduces the relation between stellar mass, dust opacity and star formation rate observed in local star-forming galaxies. The dust content of…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 H. Jabran Zahid , Paul Torrey , Rolf Kudritzki , Lisa Kewley , Romeel Dave , Margaret Geller

The James Webb Space Telescope (JWST) has discovered an overabundance of UV-bright ($M_{\rm UV} \lesssim -20$), massive galaxies at $z \gtrsim 10$ in comparison to pre-JWST theoretical predictions. Among the proposed interpretations, such…

Astrophysics of Galaxies · Physics 2025-12-19 Yurina Nakazato , Andrea Ferrara

The global star formation rate in high redshift galaxies, based on optical surveys, shows a strong peak at a redshift of z=1.5, which implies that we have already seen most of the formation. High redshift galaxies may, however, emit most of…

Astrophysics · Physics 2015-06-24 A. J. Barger , L. L. Cowie , D. B. Sanders , E. Fulton , Y. Taniguchi , Y. Sato , K. Kawara , H. Okuda

We investigate the star formation and dust extinction properties of very luminous infrared galaxies whose spectra display a strong Hdelta line in absorption and a moderate [OII] emission (e[a] spectrum). This spectral combination has been…

Astrophysics · Physics 2009-10-31 Bianca M. Poggianti , Alessandro Bressan , Alberto Franceschini

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

The physics of star formation at its extreme, in the nuclei of the densest and the most massive star clusters in the universe - potential massive black hole nurseries - has for decades eluded scrutiny. Spectroscopy of these systems has been…

Astrophysics of Galaxies · Physics 2018-05-23 Benny Tsz-Ho Tsang , Milos Milosavljevic

We analyse the far-infrared properties of $\sim$ 5,000 star-forming galaxies at $z<4.5$, drawn from the deepest, super-deblended catalogues in the GOODS-N and COSMOS fields. We develop a novel panchromatic SED fitting algorithm,…

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