Apollo 16 Lyman alpha imagery of the hydrogen geocorona

Details Apollo 16 Lyman alpha imagery of the hydrogen geocorona Apollo 16 Lyman alpha imagery of the hydrogen geocorona

Apr 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976jgr....81.1664c&link_type=abstract

Journal of Geophysical Research, vol. 81, Apr. 1, 1976, p. 1664-1672.

Other

9

Airglow, Geocoronal Emissions, Hydrogen, Lyman Alpha Radiation, Ultraviolet Spectra, Apollo 16 Flight, Atmospheric Models, Far Ultraviolet Radiation, Gas Density, Terrestrial Radiation

Scientific paper

Lyman alpha imagery of the hydrogen geocorona was obtained from the lunar surface during the Apollo 16 mission. The images are of 20 degrees diameter fields, with 2 arc min limiting resolution, centered on the earth and about 12 degrees upsun of the earth. The data confirm that the hydrogen geocorona is detectable above the interplanetary Lyman alpha background to more than 15 R sub E in the upsun direction. In the antisolar direction there is a pronounced 'geotail' effect due to solar Lyman alpha radiation pressure, which is markedly asymmetric about the sun line. Comparison of the data with theoretical models shows quite good agreement, particularly in the vicinity of 3 R sub E. In agreement with other observations the hydrogen density is lower than the theoretical density in the far-upsun direction, and very close to the earth there is a buildup of hydrogen on the dark side.

Affiliated with

Also associated with

No associations

Rating

Apollo 16 Lyman alpha imagery of the hydrogen geocorona 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 Apollo 16 Lyman alpha imagery of the hydrogen geocorona, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apollo 16 Lyman alpha imagery of the hydrogen geocorona will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1613154