The 5577/3914 angstrom units intensity ratio in auroras.
Auroral intensity ratio of green line of atomic oxygen and first negative band of nitrogen, showing rise in electron temperature above neutral particle temperature
ELECTRON TEMPERATURE↗
SEARCH · Search NASA
Results for “auroras”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
The abnormally early appearance of the eastward motion of auroras in the evening.
Abnormally early eastward auroral motion appearance in evening and associated magnetospheric plasma shell motion
AURORAL ZONE↗
Simultaneous observation of electron fluxes, ionization, and luminosity in an aurora.
Auroral band electron energy spectra, electron number density, ionization and luminosity obtained from rocket measurements
Clark, T. A.↗
Ionospheric electron densities and temperatures in aurora.
Auroral ionospheric electron densities and temperatures, discussing electron density variation and electron heating by auroral secondaries
Rees, M. H.↗
The spectrum of the ultraviolet aurora.
UV auroral spectrum atomic oxygen, nitrogen and molecular nitrogen electron impact excited emission calculations compared to rocket observations
Barth, C. A.↗
On radio-star visibility fades and the aurora.
Radio star visibility fades relationship to line of sight auroral intensity
Fremouw, E. J.↗
Measurements of precipitated 1-20 keV protons and electrons during a breakup aurora
Photometric measurements of precipitated 1-20 keV protons and electrons during auroral breakup
Bernstein, W.↗
The ratio rho/5577// rho/N sub 2 super plus first negative/ in the aurora.
Ratio of volume emission rates of 5577 A and band of positive N molecular ion first negative system for use in auroral observations
Murcray, W. B.↗
Polar auroras, polar substorms, and their relationships with the dynamics of the magnetosphere.
Dynamics of magnetosphere, discussing auroral oval position, ring currents, plasma density and magnetic field variations in near polar region
Feldstein, Y. I.↗
Television observation of auroras.
Image intensifiers and orthicons, plumbicons, vidicons as photoelectric devices in TV auroral observation from ground stations and jet aircraft
Davis, T. N.↗
Semi-empirical cross sections and the airglow and aurora.
Semiempirical electron impact cross sections and energy loss functions applied to dayglow and auroral intensities calculation, discussing atomic and aeronomic implications
Green, A. E. S.↗
Characteristics of polar cap auroras.
Spectral characteristics of structured areas of luminosity in polar cap region, reporting spatial and time variations plotted from NASA airborne survey
Akasofu, S.-I.↗
On the excitation and collisional deactivation of metastable atoms and molecules in the aurora and airglow Progress report
Explore the source record for details and available documents.
Zipf, E. C.↗
Ion composition and ion chemistry in an aurora
Auroral ion distribution and conversion of oxygen protons to nitric oxide protons
Donahue, T. M.↗
Observations of the aurora in the far ultraviolet from OGO 4
Auroral arcs far UV observations by OGO 4, discussing luminosity, morphology, position, etc
Chubb, T. A.↗
Ion composition and ion chemistry in an aurora
Auroral ion composition and chemistry from rocket-borne mass spectrometer measurements, investigating oxygen density and green line excitation
Donahue, T. M.↗
Energy transfer from N2/A super 3 sigma sub u/plus// as a source of O/super 1 S/ in the aurora
Nitrogen deactivation by ground state atomic oxygen resulting in metastable oxygen atom as auroral green line source
Parkinson, T. D.↗
Electric field excitation of O2/super 1 delta sub g/ in auroras
Auroral enhancement of IR oxygen band, considering electric field excitation mechanisms
Walker, J. C. G.↗