Preliminary results using a new technique to search for very rapid variations in the spectra and shape of the coma of Comet Halley

Details Preliminary results using a new technique to search for very rapid variations in the spectra and shape of the coma of Comet Halley Preliminary results using a new technique to search for very rapid variations in the spectra and shape of the coma of Comet Halley

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986esasp.250c..93r&link_type=abstract

In ESA, Proceedings of the 20th ESLAB Symposium on the Exploration of Halley's Comet. Volume 3: Posters p 93-97 (SEE N87-26714 2

Physics

Bursts, Cometary Atmospheres, Halley'S Comet, Image Analysis, Spectrum Analysis, Charge Coupled Devices, Data Acquisition, Emission Spectra, Space Observations (From Earth), Video Data

Scientific paper

Digitized spectra and images of comet Halley were obtained from the Naismith focus of the 2.3 meter telescope at Siding Spring Observatory, Australia. A fast CCD camera and custom built Video Data Acquisition System were used to record and digitize comet images and spectra from 380 to 800 nm. Images could be examined individually and averaged. An anti-sunward core outburst detected on March 24 (UT) has been recorded continuously over several hours. The high time resolution system allows a spectral range to be analyzed every 1/2 second. Preliminary indications of rapid variations in molecular emission bands from the core out to several minutes of arc are discussed.

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