Physics
Scientific paper
Nov 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985jgr....9011035v&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 90, Nov. 1, 1985, p. 11,035-11,044.
Physics
6
Auroras, Emission Spectra, H Beta Line, Periodic Variations, Proton Precipitation, Data Processing, Spectral Energy Distribution, Temporal Distribution
Scientific paper
From all-sky TV and meridian scanning photometer data, obtained at Poker Flat, AK, during the 1982/1983 winter, 12 nights with extensive displays of pulsating aurora were selected for analysis. The majority of the pulsations were located near the equatorward edge of the proton aurora as identified by the H-beta emission; however, on two nights, pulsating aurora was also observed embedded in the main region of the proton aurora. The period of the pulsations varied from 3 to 25 s and appeared to be correlated with the H-beta intensity. The short periods corresponded to weak H-beta emissions, while no pulsations were observed above 80 R in H-beta. The change in period appeared to be caused mainly by a variation in the time between individual pulses.
Stenbaek-Nielsen Hans C.
Viereck Rodney A.
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