Dynamics of Molecular Retention in Planetary and Satellite Atmospheres

Details Dynamics of Molecular Retention in Planetary and Satellite Atmospheres Dynamics of Molecular Retention in Planetary and Satellite Atmospheres

Apr 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011dda....42.0407c&link_type=abstract

American Astronomical Society, DDA meeting #42, #4.07; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

Jeans analysis of planetary and satellite atmospheric thermal evaporation based on the classical kinetic theory of gases implied his rule that molecular retention occurs on the order of billions of years when Vescape exceeds Vrms by a factor F with 6 < F < 10. This rule is still in use.
It is shown here that an improved most probable speed distribution analysis predicts its termination at a speed given by Vo = Fo Vrms where Fo = (2/3 Log[N])1/2, Log is the natural log and N is the total number of molecules in the atmosphere. Fo values for Venus through Neptune and for Pluto, Titan and Triton are all on the order of 8 in agreement with the rule. This result agrees well with a microcanonical analysis.

Affiliated with

Also associated with

No associations

Rating

Dynamics of Molecular Retention in Planetary and Satellite Atmospheres 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 Dynamics of Molecular Retention in Planetary and Satellite Atmospheres, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamics of Molecular Retention in Planetary and Satellite Atmospheres will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-763742