Spectrum of a fast sporadic meteor

Details Spectrum of a fast sporadic meteor Spectrum of a fast sporadic meteor

Aug 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...224..227h&link_type=abstract

Astrophysical Journal, Part 1, vol. 224, Aug. 15, 1978, p. 227-231, 233, 234.

Astronomy and Astrophysics

Astrophysics

1

Astronomical Spectroscopy, Meteoritic Composition, Plasma Diagnostics, Sporadic Meteoroids, Abundance, Earth Atmosphere, Heavy Elements, Particle Collisions, Perseid Meteoroids, Thermodynamic Equilibrium

Scientific paper

The spectrum of a fast (63 km/s) sporadic meteor for which altitude and orbit data are available is reported. The -6 mag meteor occurred on January 5, 1976, over southern New Mexico. Fifty features have been identified in the spectrum. The spectrum is essentially identical to that of Perseid meteors of similar brightness. It is shown that heavy-particle collisions do not dominate bright meteor spectra lacking time resolution. Low-energy electron excitation of Ca II is strongly indicated in the wake to such an extent as to strongly affect spectra of this type lacking time resolution.

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