Published January 1986 | Version v1
Report Metadata-only

Cometary atmospheres: modeling the spatial distribution of observed neutral radicals. Interim Report, September-November 1985

Creators

Description

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

Availability note (English)

Available from NTIS, PC A04/MF A01.

Additional details

Publishing Information

Imprint Pagination
53 p.
Report number
N--86-20278

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
17066744
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Resource subtype / Literary indicator
Numerical Data, Non-conventional Literature
Descriptors DEI
BRIGHTNESS; COMETS; EXPERIMENTAL DATA; MONTE CARLO METHOD; NEUTRAL PARTICLES; RADICALS; SOLAR SYSTEM; SPATIAL DISTRIBUTION
Descriptors DEC
DATA; DISTRIBUTION; INFORMATION; NUMERICAL DATA; OPTICAL PROPERTIES; PHYSICAL PROPERTIES

Optional Information

Secondary number(s)
NASA-CR--176548.