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EURD observations of EUV nightime airglow lines
Author(s) -
LópezMoreno José J.,
Morales Carmen,
Gómez José F.,
Trapero Joaquín,
Bowyer Stuart,
Edelstein Jerry,
Lampton Michael,
Korpela Eric J.
Publication year - 1998
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/98gl52079
Subject(s) - airglow , extreme ultraviolet lithography , extreme ultraviolet , line (geometry) , physics , satellite , astronomy , remote sensing , environmental science , geology , optics , laser , geometry , mathematics
The extreme ultraviolet (EUV) airglow has yet to be studied extensively due to observational difficulties in this range of the spectrum. EURD is an instrument designed to study diffuse EUV radiation flown on the Spanish MINISAT‐01 satellite. In this paper we present observations of the terrestrial night airglow as observed from EURD in the range of 400 to 1060 Å. The high sensitivity and high resolution of the instrument, compared with previous observations, and the long integration times provided by MINISAT‐01 permits the identification for the first time of the complete Lyman series of atomic hydrogen resolving up to Lyman ϵ. It has also been possible to identify a feature at 537 Å as helium Lyman β line and the detection of other lines of the blended Lyman series of helium at 515 and 522 Å.