Hot oxygen atoms in the upper atmosphere of Venus

Details Hot oxygen atoms in the upper atmosphere of Venus Hot oxygen atoms in the upper atmosphere of Venus

Jun 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981georl...8..629n&link_type=abstract

Geophysical Research Letters, vol. 8, June 1981, p. 629-632.

Astronomy and Astrophysics

Astronomy

118

Gas Dissociation, High Temperature Gases, Hot Atoms, Oxygen Atoms, Radiative Recombination, Upper Atmosphere, Venus Atmosphere, Charge Exchange, Diurnal Variations, Pioneer Venus 1 Spacecraft, Reaction Kinetics, Spaceborne Astronomy, Ultraviolet Spectroscopy, Absorption, Solar Wind, Chemistry, Ionosphere, Venus, Atmosphere, Data, Oxygen, Energy, Distribution, Comparisons, Techniques, Transport, Ions, Diffusion, Dissociation, Hydrogen, Altitude, Observations, Dayside, Pioneer Venus Orbiter, Ultraviolet Spect

Scientific paper

Using data obtained by an ultraviolet spectrometer on the Pioneer-Venus Orbiter, energy and altitude distribution of nonthermal oxygen atoms in the Venus atmosphere for typical daytime and nighttime conditions are calculated using two different numerical methods. Agreement is found between results obtained by the two-stream transport method and the diffusion equation technique. Dissociative recombination of molecular oxygen ions and charge exchange of atomic oxygen ions with the neutral hydrogen and oxygen gas are the source terms, and calculations show that the dissociative recombination term is the dominant one. It is shown that measured hot atom concentrations exceed estimates of the thermal hydrogen atom concentrations derived from Brinton et al. (1980) over most of the daytime exosphere, and the calculated concentrations do so to an even greater extent. It is concluded that hot oxygen atoms are an important component of the dayside exosphere of Venus, their most important effect being the absorption of solar wind.

Affiliated with

Also associated with

No associations

Rating

Hot oxygen atoms in the upper atmosphere of Venus 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 Hot oxygen atoms in the upper atmosphere of Venus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hot oxygen atoms in the upper atmosphere of Venus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-993950