Cometary atmospheres: Modeling the spatial distribution of observed neutral radicals

Details Cometary atmospheres: Modeling the spatial distribution of observed neutral radicals Cometary atmospheres: Modeling the spatial distribution of observed neutral radicals

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986aeri.reptq....c&link_type=abstract

Interim Report, Sep. - Nov. 1985 Atmospheric and Environmental Research, Inc., Cambridge, MA.

Astronomy and Astrophysics

Astronomy

Astronomical Models, Cometary Atmospheres, Neutral Particles, Radicals, Spatial Distribution, Comets, Monte Carlo Method, Solar Orbits, Solar System

Scientific paper

New data for the spatial distribution of cometary C2 are presented. A recompilation of the Haser scale lengths for C2 and CN resolves the previously held anomalous drop of the C2/CN ratio for heliocentric distances larger than 1 AU. Clues to the source of cometary C2 have been found through fitting the sunward-antisunward brightness profiles with the Monte Carlo particle-trajectory model. A source (parent) lifetime of 3.1 x 10,000 seconds is found, and an ejection speed for C2 radicals upon dissociation of the parent(s) of approx. 0.5 km 1/5 is calculated.

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