The photoelectric layer near the surface of Mars

Details The photoelectric layer near the surface of Mars The photoelectric layer near the surface of Mars

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufm.p23a0051s&link_type=abstract

American Geophysical Union, Fall Meeting 2006, abstract #P23A-0051

Physics

5470 Surface Materials And Properties, 6225 Mars, 6299 General Or Miscellaneous

Scientific paper

A significant fraction of solar UV photons with energies below approximately 6 eV penetrate the Martian CO2 atmosphere and interact with the surface of the planet. It has been estimated previously that photoelectrons are emitted with a mean kinetic energy of 0.4 eV and a flux of 1011 1012 m^{- 2}s-1. An updated model is presented of the interaction of the photoelectrons with the planets atmosphere. The collisions of electrons with CO2 molecules have significant effects on the photoelectron layer. 1) The scattering from the neutral molecules returns a significant fraction of the electrons to the surface. 2) Both elastic and inelastic collision are an important cooling mechanism. A Monte-Carlo simulation is performed to study the density and temperature of the photoelectron layer and its variation with altitude. The importance of space charge effects is also discussed.

Affiliated with

Also associated with

No associations

Rating

The photoelectric layer near the surface of Mars 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 The photoelectric layer near the surface of Mars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The photoelectric layer near the surface of Mars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-961397