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Radiation Pressure Feedback in Galaxies
Published online by Cambridge University Press: 25 November 2011
Abstract
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–\hbox{$L_{\rm HCN}^\prime$}LHCN′ correlation provides evidence that galaxies may be regulated by radiation pressure feedback. We show that star-forming galaxies approach but do not dramatically exceed Eddington, but many systems are significantly below Eddington, perhaps due to the “intermittency” of star formation. Better constraints on the dust-to-gas ratio and the CO- and HCN-to-H2 conversion factors are needed to make a definitive assessment of radiation pressure as a feedback mechanism.
- Type
- Research Article
- Information
- European Astronomical Society Publications Series , Volume 52: Conditions and Impact of Star Formation , 2011 , pp. 275 - 276
- Copyright
- © EAS, EDP Sciences 2011