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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/3792
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dc.contributor.authorNath, Biman B.-
dc.contributor.authorSilk, Joseph-
dc.date.accessioned2009-07-15T06:43:23Z-
dc.date.available2009-07-15T06:43:23Z-
dc.date.issued2009-
dc.identifier.citationMonthly Notices of the Royal Astronomical Society, 2009, Vol.396, pL90en
dc.identifier.issnE-ISSN: 1365-2966-
dc.identifier.issnP-ISSN: 0035-8711-
dc.identifier.urihttp://hdl.handle.net/2289/3792-
dc.descriptionRestricted Access. An open-access version is available at arXiv.org (one of the alternative locations)en
dc.description.abstractWe propose a model of starburst-driven galactic outflows whose dynamics depend on both radiation and thermal pressure. Standard models of thermal pressure-driven winds fail to explain some key observations of outflows at low- and high-redshift galaxies. We discuss a scenario in which radiation pressure from massive stars in a stellar population drive a shell of gas and dust. Subsequent supernova explosions from the most massive stars in this population then drive stellar ejecta outwards in a rarefied medium, making it collide with the radiation-pressure-driven shell. The collision imparts renewed momentum to the shell, and the resulting re-acceleration makes the shell Rayleigh–Taylor unstable, fragmenting the shell. We show that the speed of these ballistic fragments can explain some recently observed correlations in Lyman break galaxies among wind speed, reddening and star formation rate.en
dc.language.isoenen
dc.publisherWiley Interscience for the RASen
dc.relation.urihttp://adsabs.harvard.edu/abs/2009MNRAS.396L..90Nen
dc.relation.urihttp://arxiv.org/abs/arXiv:0905.0314en
dc.relation.urihttp://dx.doi.org/10.1111/j.1745-3933.2009.00670.xen
dc.rights2009 The authors & the Royal Astronomical Societyen
dc.subjectgalaxies: evolutionen
dc.subjectintergalactic mediumen
dc.subjectgalaxies: starbursten
dc.titleStarburst-driven galactic outflowsen
dc.typeArticleen
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