Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 1974
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974ap%26ss..30..115h&link_type=abstract
Astrophysics and Space Science, Volume 30, Issue 1, pp.115-122
Astronomy and Astrophysics
Astrophysics
1
Scientific paper
Rocket observations of far ultraviolet terrestial airglow emissions in the 1230 1450 Å band at night have been carried out from White Sands Missile Range. Three rockets carried 15.4 cm diameter far ultraviolet telescopes to≃220 km altitude at various times during the night from post sunset to predawn. Post sunset and predawn observations were made when the solar zenith angle at the conjugate ionosphere was≅95° and in both cases positive identification of strong O i, 1304 Å emissions was made. Evidence that in these cases the 1356/1304 intensity ratio was less than 0.2 is presented. Observations made well into the night yielded only an upper limit to the combined O i, 1304 and 1356 Å emissions of 20 Rayleighs, consistent with previous observations and theretical calculations. These results show that meaningful rocket observations of the cosmic far ultraviolet background can be made only when the solar zenith angle at the conjugate ionosphere of the launch site is larger than 105° or if atomic oxygen emission lines are excluded from the detectors' bandpass.
Holberg Jay
Paresce Francesco
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