Letter | Published:

Excitation of the Green Auroral Line

Nature volume 128, page 304 (22 August 1931) | Download Citation

Subjects

Abstract

THIS note will be of special interest when compared with my paper on the light of the night sky, published in a recent number of the Physical Review, and with my report before the Pasadena meeting of the American Physical Society, in which I reported the first effectively complete reproduction of the aurora spectrum. On many of the spectra which were photographed during the progress of the above-mentioned experiments, it was thought that there were definite, though weak, indications of the presence of the green auroral line. The failure of the green line to appear with considerable intensity in these experiments was never considered to be serious, since there was ample evidence for the occurrence of collisions between excited nitrogen molecules and metastable oxygen atoms in the states which are involved in the emission of the green line. Since the state on which the green line originates is metastable, it is not at all surprising that the line was either absent or missing in these experiments.

Access optionsAccess options

Rent or Buy article

Get time limited or full article access on ReadCube.

from$8.99

All prices are NET prices.

Author information

Affiliations

  1. University of California at Los Angeles, July 18.

    • JOSEPH KAPLAN

Authors

  1. Search for JOSEPH KAPLAN in:

About this article

Publication history

Published

DOI

https://doi.org/10.1038/128304a0

Comments

By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.