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Synoptic maps constructed from brightness observations of Thomson scattering by heliospheric electronsObservations of the Thomson scattering brightness by electrons in the inner heliosphere provide a means of probing the heliospheric electron distributions. An extensive data base of Thomson scattering observations, stretching over many years, is available from the zodiacal light photometers on board the two Helios spacecraft. A survey of these data is in progress, presenting these scattering intensities in the form of synoptic maps for successive Carrington rotations. The Thomson scattering maps reflect conditions at typically several tenths of an astronomical unit from the sun. Some representative examples from the survey in comparison with other solar/heliospheric data, such as in situ observations of the Helios plasma experiment and synoptic maps constructed from magnetic field, H alpha and K-coronameter data are presented. The comparison will provide some information about the extension of solar surface features into the inner heliosphere.
Document ID
19910044887
Document Type
Reprint (Version printed in journal)
Authors
Hick, P. (California Univ. La Jolla, CA, United States)
Jackson, B. (California, University La Jolla, United States)
Schwenn, R. (Max-Planck-Institut fuer Aeronomie Katlenburg-Lindau, Federal Republic of Germany, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1991
Publication Information
Publication: Advances in Space Research
Volume: 11
Issue: 1 19
ISSN: 0273-1177
Subject Category
SOLAR PHYSICS
Funding Number(s)
CONTRACT_GRANT: NSF ATM-88-12409
CONTRACT_GRANT: NAGW-2002
Distribution Limits
Public
Copyright
Other