Evolution of albedos of cometary dirty ice grains

Details Evolution of albedos of cometary dirty ice grains Evolution of albedos of cometary dirty ice grains

Oct 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...167..364m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 167, Oct. 1986, p. 364-370. Research supported by the Max-Planck-Gesellschaft.

Astronomy and Astrophysics

Astrophysics

10

Albedo, Cometary Atmospheres, Ice Nuclei, Interplanetary Dust, Galactic Cosmic Rays, Impurities, Solar Wind, Surface Roughness, Temporal Distribution

Scientific paper

The generalized geometric albedo Ap(Theta) of cometary dirty ice grains with radii of about a few mm are determined as a function of the volume fraction (f) of impurities in the ice material using the optical constants of heterogeneous ice grains computed by the Maxwell-Garnett rule. Ap(Theta) is shown to increase with increase in the absorption coefficient of the dirty ice grains due to the greater external reflection of more absorbing material, and to decrease with increasing surface roughness. An increase of f, due to decrease of the volume fraction of volatiles by sublimation or sputtering by the solar wind, is shown to result in brighter dust with time and near the sun, and the smoothing of the surface of dust in interplanetary space is suggested to accelerate the production of brighter dust with time.

Affiliated with

Also associated with

No associations

Rating

Evolution of albedos of cometary dirty ice grains 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 Evolution of albedos of cometary dirty ice grains, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evolution of albedos of cometary dirty ice grains will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1735148