Abstract
view Abstract Citations (17) References (23) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Revised Scale Lengths for Cometary NH Schleicher, D. G. ; Millis, R. L. Abstract New values for the Haser model scale lengths of NH are derived from extensive narrow-band photometry of comet P/Halley. The observations require a parent scale length which is 5-10 times larger than previously published values. It is shown that the newly determined scale lengths also give better agreement with recent observations of two other comets: P/Borrelly and Liller. When combined with fluorescence efficiency calculations by others, the present results indicate that NH production in typical comets, relative to that of other molecular species, is about 20 times greater than previously believed. Publication: The Astrophysical Journal Pub Date: April 1989 DOI: 10.1086/167365 Bibcode: 1989ApJ...339.1107S Keywords: Astronomical Photometry; Cometary Atmospheres; Halley'S Comet; Nitrogen Hydrides; Brightness Distribution; Light Curve; COMETS; NH RADICAL; HALLEY; PHOTOMETRY; PRODUCTION RATE; PROCEDURE; MOLECULAR PROCESSES; ANALYSIS; SURFACE; BRIGHTNESS; MODELS; PARAMETERS; BORRELLY; LILLER; PARENT MOLECULES; ORIGIN; FORMATION; Astrophysics; Comets; COMETS; MOLECULAR PROCESSES full text sources ADS |
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