High-temperature, high-resolution photoabsorption cross sections of <formula alphabet="latin">O2 in the 108.5-nm region

Physics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

1

Atmospheric Composition And Structure, Atmospheric Composition And Structure: Airglow And Aurora, Atmospheric Composition And Structure: Thermosphere-Composition And Chemistry, Ionosphere: Planetary Ionospheres

Scientific paper

The high-resolution absorption cross-section measurements of O2 in the 108.0- to 108.7-nm spectral region have been carried out with a resolution of 0.0008 nm and at temperatures of 295 and 535 K. The absorption features in this spectral region exhibit primarily a blue-shaded broad band with a band head peaked at 108.52 nm. The center of gravity of the diffuse band is located at 108.452 nm. The present room temperature cross-section data of the NII 108.5-nm sextuplets agree well with the unpublished data of J.A.R. Samson (private communication, 1990). As the temperature increases from 295 to 535 K, we observe a decrease in cross-section values by as much as 30% over the contour of the diffuse band. Similarly, the cross-section values of the sharp features decrease as temperature increases. The NII 108.5-nm multiplets are one of the prominent emissions in the Earth's airglow. The EUV-UV dayglow limb scans of the thermosphere and ionosphere have currently been gathered by satellite, e.g., ARGOS, at a tangent ray height of 200 km, above where the ambient absorption due to O2 and N2 is expected. The present temperature-dependent cross sections of O2 provide the important database required for modeling the dayglow observations.

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

High-temperature, high-resolution photoabsorption cross sections of <formula alphabet="latin">O2 in the 108.5-nm region 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 High-temperature, high-resolution photoabsorption cross sections of <formula alphabet="latin">O2 in the 108.5-nm region, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-temperature, high-resolution photoabsorption cross sections of <formula alphabet="latin">O2 in the 108.5-nm region will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1186952

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