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Laboratory Investigations of the Physical and Optical Properties of the Analogs of Individual Cosmic Dust GrainsMicrodsub-micron size cosmic dust grains play an important role in the physical and dynamical process in the galaxy, the interstellar medium, and the interplanetary and planetary environments. The dust grains in various astrophysical environments are generally charged by a variety of mechanisms that include collisional process with electrons and ions, and photoelectric emissions with UV radiation. The photoelectric emission process is believed to be the dominant process in many astrophysical environments with nearby UV sources, such as the interstellar medium, diffuse clouds, the outer regions of the dense molecular clouds, interplanetary medium, dust in planetary environments and rings, cometary tails, etc. Also, the processes and mechanisms involved in the rotation and alignment of interstellar dust grains are of great interest in view of the polarization of observed starlight as a probe for evaluation of the galactic magnetic field.
Document ID
20050207556
Document Type
Preprint (Draft being sent to journal)
Authors
Abbas, M. M.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Tankosic, D.
(Alabama Univ. Huntsville, AL, United States)
Craven, P. D.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Spann, J. F.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
LeClair, A.
(Alabama Univ. Huntsville, AL, United States)
West, E. A.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
August 23, 2013
Publication Date
January 1, 2005
Subject Category
Solar Physics
Meeting Information
Origins of Solar Systems(Nre London, CT)
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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