Spatial distribution of O(1D) from Comet Halley

Details Spatial distribution of O(1D) from Comet Halley Spatial distribution of O(1D) from Comet Halley

Oct 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988icar...76...89m&link_type=abstract

Icarus (ISSN 0019-1035), vol. 76, Oct. 1988, p. 89-99. Research supported by the National Optical Astronomy Observatories and Un

Astronomy and Astrophysics

Astronomy

19

Comet Heads, Emission Spectra, Halley'S Comet, Oxygen, Spatial Distribution, Fabry-Perot Interferometers, Photodecomposition, Photodissociation, Space Observations (From Earth)

Scientific paper

Images of comet Halley in forbidden OI 6300-A emission obtained using a 150 mm Fabry-Perot spectrometer in the imaging mode were combined with spectra taken in the scanning mode to deduce the distribution of cometary O(1D) within a 10-arcmin field of view centered on the comet head. The 10-km/sec bandpass of the system allows the distribution to be measured with little contamination from airglow O(1D) and cometary NH2 lines in the nearby spectrum. The results are modeled to provide photodestruction scale lengths for cometary H2O and OH, the predominant parents of O(1D). Results are compared with other experimental and theoretical results.

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