Observations of the He II 304–A radiation in the night sky
作者:
Francesco Paresce,
Stuart Bowyer,
Shailendra Kumar,
期刊:
Journal of Geophysical Research
(WILEY Available online 1973)
卷期:
Volume 78,
issue 1
页码: 71-79
ISSN:0148-0227
年代: 1973
DOI:10.1029/JA078i001p00071
数据来源: WILEY
摘要:
The intensity and spatial variations of the He II 304–A radiation in the night sky were measured to an altitude of 264 km from a sounding rocket launched from Thumba, India, on March 10, 1970. The data obtained are presented in the form of an all‐sky map and are compared with theoretical predictions. The data are not consistent either with diffusive equilibrium models of exospheric helium or with plausible models of helium in the interplanetary medium. The data can be fit with a constant density plasmasphere model bounded at the magnetic shellL= 4 in combination with a tenuous gas of helium ions in the plasma sheet. Numerical results obtained with this model are compared with in situ satellite observati
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