Segregation of dust grains in dark clouds

Details Segregation of dust grains in dark clouds Segregation of dust grains in dark clouds

May 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982ap%26ss..84..163b&link_type=abstract

Astrophysics and Space Science, vol. 84, no. 1, May 1982, p. 163-172.

Astronomy and Astrophysics

Astrophysics

7

Cosmic Dust, Gravitational Effects, Interstellar Matter, Molecular Clouds, Particle Size Distribution, Cosmic Gases, Grain Boundaries, Mathematical Models, Radii, Sediments, Viscous Drag, Viscous Fluids

Scientific paper

Gravitational settling of dust grains in dark clouds has been considered. It has been shown that such a process gives rise to a modification of the grain size distribution. Starting with a simple model of uniform spherical cloud and normal interstellar grain size distribution for the dust we derive expressions for the modified grain size distribution function, average grain size and extinction as functions of distance from the cloud's center and the age of the cloud. The mean grain size increases towards the center of the cloud as does the extinction. Results of the numerical evaluation of these quantities have been discussed with their implications for the observations of anomalous reddening and polarization within dark clouds and Bok globules.

Affiliated with

Also associated with

No associations

Rating

Segregation of dust grains in dark clouds does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Segregation of dust grains in dark clouds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Segregation of dust grains in dark clouds will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1100302