Monte-Carlo histories of refractory interstellar dustMonte-carlo histories of 6 x 10 to the 6th individual dust particles injected uniformly from stars into the interstellar medium during a 6 x 10 to the 9th year history are calculated. The particles are given a two-phase internal structure of successive thermal condensates, and are distributed in initial radius as 1/a-cubed over the value of a between 0.01 and 0.1 micron. The evolution of this system illustrates the distinction between several different lifetimes for interstellar dust. Most are destroyed, but some grow in size. Several important consequences for interstellar dust are described.
Document ID
19890052539
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Clayton, D. D. (Rice University Houston, TX, United States)
Liffman, K. (NASA Ames Research Center Moffett Field, CA, United States)