On I(5577 Å) and I (7620 Å) auroral emissions and atomic oxygen densities

Other

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

2

Scientific paper

A model of auroral electron deposition processes has been developed using Monte Carlo techniques to simulate electron transport and energy loss. The computed differential electron flux and pitch angle were compared with in situ auroral observations to provide a check on the accuracy of the model. As part of the energy loss process, a tally was kept of electronic excitation and ionization of the important atomic and molecular states. The optical emission rates from these excited states were computed and compared with auroral observations of (3914 Å), (5577 Å), (7620 Å) and (N2VK). In particular, the roles played by energy transfer from N2(A3+u) and by other processes in the excitation of O(1S) and O2(b1+g) were investigated in detail. It is concluded that the N2(A3+u) mechanism is dominant for the production of OI(5577 Å) in the peak emission region of normal aurora, although the production efficiency is much smaller than the measured laboratory value; above 150 km electron impact on atomic oxygen is dominant. Atomic oxygen densities in the range of 0.75+/-0.25 MSIS-86 [O] were derived from the optical comparisons for auroral latitudes in mid-winter for various levels of solar and magnetic activity.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

On I(5577 Å) and I (7620 Å) auroral emissions and atomic oxygen densities 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 On I(5577 Å) and I (7620 Å) auroral emissions and atomic oxygen densities, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On I(5577 Å) and I (7620 Å) auroral emissions and atomic oxygen densities will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1116236

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.