Accession Number:

AD0257098

Title:

THEORETICAL CONSIDERATIONS ON THE PREDICTED FAR ULTRAVIOLET SPECTRA OF COMETS AND OF POLAR AURORAE

Descriptive Note:

Corporate Author:

LIEGE UNIV (BELGIUM)

Personal Author(s):

• SWINGS,P.
• BOSMAN-CRESPIN,D.
• ARPIGNY,C.

Report Date:

1960-08-15

Pagination or Media Count:

36.0

Abstract:

The expected far ultraviolet spectra of comets and of polar aurorae is considered. The far ultraviolet spectrum of comets will be weak compared to the visual region new molecules may be found. In the case of absorption bands shortward of lambda 1500 the excited molecular emissions may be discrete resonance series, on which the radial velocity effect will be very important. It is likely that unexpected results will be found, as it is impossible to predict certain phenomena, as in the case of H2. The predicted far ultraviolet spectrum of aurorae may help in preparing the experiments, and especially in disentangling readily the essential features of the spectrograms from satellites or rockets, as soon as such material will be recorded. Great uncertainties are obviously involved in such predictions, especially as far as the intensities are concerned. Author

Descriptors:

• *AURORAE
• *COMETS
• *ULTRAVIOLET RADIATION
• ELECTROMAGNETIC RADIATION
• SPACE FLIGHT
• SPECTROGRAPHY
• ULTRAVIOLET SPECTROSCOPY
• UPPER ATMOSPHERE

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE