Hydrogen geocorona and solar Lyman‐alpha line: 1. Rocket measurement of the solar line profile
作者:
Elmo C. Bruner,
Robert W. Parker,
期刊:
Journal of Geophysical Research
(WILEY Available online 1969)
卷期:
Volume 74,
issue 1
页码: 107-113
ISSN:0148-0227
年代: 1969
DOI:10.1029/JA074i001p00107
数据来源: WILEY
摘要:
A rocket‐borne high‐resolution echelle spectrograph was used to measure the profile of the solar hydrogen‐Lyman‐alpha line. The profile was normalized to an integrated flux of 5.2 ergs/cm² sec, the value of which was measured with a nitric oxide ion chamber carried on the same flight. The flux available for scattering by hydrogen in the geocorona was 2.8 × 1011photons/cm² sec. The optical depth at the center of the telluric absorption line was about 5.6 in the slant path at a 60° zenith distance. The general features of the profile are in agreement with earlier m
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