2009/02/27 by E. Dwek, Eli Dwek, Frederic Galliano +6
Physics and Astronomy · #Astronomy and Astrophysical Research #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences #Scientific Research and Discoveries #Stellar, planetary, and galactic studies #astro-ph.CO
paper · pdf · doi:10.48550/arxiv.0903.0006
16 pages, 9 figures. To be published in the Heidelberg 2008 Conference on "Cosmic Dust Near and Far"
arxiv created 2009/02/27 · openalex publication_date 2009/02/27 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Models 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.