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The Origin and Evolution of Interstellar DustIn this lecture I will discuss the many different manifestation of interstellar dust, and current dust models that satisfy interstellar extinction, diffuse infrared emission, and interstellar abundances constraints. Dust is made predominantly in AGB stars and Type I1 supernovae, and I will present observational evidence for the presence of dust in these sources. I will then present chemical evolution models that follow the abundance of dust which is determined by the combined processes of formation, destruction by interstellar shock waves, and accretion in molecular clouds. The model will be applied to the evolution of PAHs and the evolution of dust in the high-redshift galaxy (z=6.42) JD11.
Document ID
20060028177
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Dwek, Eli (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Houches, Les (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 23, 2013
Publication Date
January 1, 2006
Subject Category
Astronomy
Meeting Information
Meeting: International Workshop on Instellar Dust Properties: From Fundamental Studies to Astronomical Models
Location: Les Houches
Country: France
Start Date: April 30, 2006
End Date: May 5, 2006
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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