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Infrared Coronal Observations at the 1991 Solar Eclipse

Published online by Cambridge University Press:  03 August 2017

R. M. MacQueen ,
K.-W. Hodapp  and
D. N. B. Hall
R. M. MacQueen
Affiliation:
Rhodes College, 2000 North Parkway, Memphis, TN 38112, U.S.A.
K.-W. Hodapp
Affiliation:
University of Hawaii, 2680 Woodland Drive, Honolulu, HI 96822, U.S.A.
D. N. B. Hall
Affiliation:
University of Hawaii, 2680 Woodland Drive, Honolulu, HI 96822, U.S.A.

Abstract

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Observations of the solar corona in a narrow band filter at wavelength 2.12 μm during the total solar eclipse of 11 July 1991 are described, and compared with results obtained by two observers during the eclipse of November 1966, and shortly thereafter. The lack of any observable signature of thermal emission in the 1991 results suggests that during 1966/67, the near-solar environs were subjected to a locally enhanced dust population, supplied by one or more sungrazer comets. Possible conditions which match the observational circumstances are discussed.

Keywords

eclipsesinfrared: starsinterplanetary mediumSun: corona
Type
Part 2: Infrared Observations of the 1991 Total Solar Eclipse
Information
Symposium - International Astronomical Union , Volume 154: Infrared Solar Physics , 1994 , pp. 199 - 203
Copyright
Copyright © Kluwer 1994 

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