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International Halley Watch: Discipline specialists for near-nucleus studiesThe purpose of the Near-Nucleus Studies Net is to study the processes taking place in the near-nucleus environment as they relate to the nature of nucleus. This is accomplisghed by measuring the spatial and temporal distribution of dust, gases and ions in the coma on high resolution images taken from many observatories around the world. By modeling the motions of discrete dust features in Comet Halley, it is often possible to determine the locations of the emission sources on the surface and learn about the nucleus structure. In addition to the general goals shared by all IHW nets, the scientific goals of the net has been to determine (1)the gross surface structure of the nucleus, (2)the nucleus spin vector, (3)the distribution and evolution of jet sources and (4)the interrelationships between the gas, dust and ion components of the coma. An additional Comet Giacobini-Zinner watch was carried out by the NNSN in support of the NASA International Cometary Explorer flyby.
Document ID
Document Type
Conference Paper
Larson, S. (Arizona Univ. Tucson, AZ, United States)
Sekanina, Z. (Arizona Univ. Tucson, AZ, United States)
Rahe, J. (Arizona Univ. Tucson, AZ, United States)
Date Acquired
August 13, 2013
Publication Date
September 1, 1986
Publication Information
Publication: NASA, Washington Reports of Planetary Astronomy, 1985
Subject Category
Distribution Limits
Work of the US Gov. Public Use Permitted.
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