Non-thermal emission in the atmosphere above Mauna Kea

Astronomy and Astrophysics – Astronomy

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

52

Atmospheric Radiation, Infrared Spectra, Molecular Excitation, Nonthermal Radiation, Molecular Rotation, Spatial Distribution, Telescopes, Vibrational Spectra

Scientific paper

We present 1-2.5-micron spectra of the atmosphere above Mauna Kea. The emission in this region is chiefly nonthermal radiation from excited molecules in the upper atmosphere, but above about 2.3 microns the thermal contribution from the telescope and surroundings dominates. The most important component of the nonthermal emission is from vibrational-rotational transitions of the hydroxyl radical, OH(-). In addition to identifying these lines we examine the temporal and spatial variation of this emission, comparing the results with theories of the origin of the variation. We model the effect of this changing background on an hour-long sequence of observations of different exposure times and demonstrate the importance of frequent sky sampling for observations of extended objects.

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

Non-thermal emission in the atmosphere above Mauna Kea 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 Non-thermal emission in the atmosphere above Mauna Kea, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-thermal emission in the atmosphere above Mauna Kea will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1139064

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