The Cycle of Dust in the Milky Way: Clues from the High-Redshift and Local Universe

dc.creatorDwek, Eli
dc.creatorGalliano, Frederic
dc.creatorJones, Anthony
dc.date2009-02-27
dc.date.accessioned2026-07-07T12:47:53Z
dc.date.available2026-07-07T12:47:53Z
dc.descriptionModels for the evolution of dust are used to show that the observed trend of the abundance of polycyclic aromatic hydrocarbons (PAHs) with metallicity is the result of the delayed injection of carbon dust that formed in low mass asymptotic giant branch (AGB) stars into the interstellar medium. We also use our dust evolution models to examine the origin of dust at redshifts > 6, when only supernovae and their remnants could have been, respectively, their sources of production and destruction. Unless an average supernova (or its progenitor) produces between 0.1 and 1 Msun of dust, alternative sources will need to be invoked to account for the massive amount of dust observed at these redshifts.
dc.description16 pages, 9 figures. To be published in the Heidelberg 2008 Conference on "Cosmic Dust Near and Far"
dc.identifierhttps://arxiv.org/abs/0903.0006
dc.identifierhttp://arxiv.org/abs/0903.0006
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/221871
dc.subjectCosmology and Nongalactic Astrophysics
dc.titleThe Cycle of Dust in the Milky Way: Clues from the High-Redshift and Local Universe
dc.typetext

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