NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
ISM-induced erosion and gas-dynamical drag in the Oort CloudThe model presently used to examine the physical interactions between the ISM and the Oort Cloud can account for sputtering, sticking, and grain-impact erosion, as well as gas drag, by envisioning the ISM as a multiphase medium with distinct atomic and molecular cloud-phase regimes and coronal and warm/ambient gas-phase regimes. Erosion, which reduces the effectiveness of the thermal and radiation-damage processes acting on cometary surfaces in the Oort cloud, is found to be the dominant ISM interaction; ISM drag effects were found to efficiently remove submicron particles from the Cloud.
Document ID
19900046691
Document Type
Reprint (Version printed in journal)
Authors
Stern, S. Alan (Colorado, University Boulder, United States)
Date Acquired
August 14, 2013
Publication Date
April 1, 1990
Publication Information
Publication: Icarus
Volume: 84
ISSN: 0019-1035
Subject Category
ASTROPHYSICS
Funding Number(s)
CONTRACT_GRANT: NGT-50236
Distribution Limits
Public
Copyright
Other