A strong 3.4 micron emission feature in comet Austin 1989c1

Details A strong 3.4 micron emission feature in comet Austin 1989c1 A strong 3.4 micron emission feature in comet Austin 1989c1

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992acm..proc..211g&link_type=abstract

In Lunar and Planetary Inst., Asteroids, Comets, Meteors 1991 p 211-214 (SEE N93-19113 06-90)

Astronomy and Astrophysics

Astronomy

4

Austin Comet, Brightness Distribution, Emission Spectra, Organic Materials, Water Vapor, Astronomical Spectroscopy, High Resolution, Signal To Noise Ratios

Scientific paper

High resolution 2.8-4.0 micron spectra of the 'new' comet Austin 1989c1, taken on 15-16 May 1990 confirm the presence of the broad emission features around 3.4 and 3.52 micron seen in a number of bright comets and ascribed to organic material. Both the 3.4 micron band strength and the 3.52/3.36 micron flux ratios are among the largest so far observed. The data are consistent with the relationship between band strength and water production rate that was recently derived. Excess emission at 3.28 and 3.6 micron cannot be unambiguously identified as features due to the poor signal-to-noise ratio.

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