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On the Coronal and Prominence Structures Observed at the Total Solar Eclipse of 11 July 1991

Published online by Cambridge University Press:  03 August 2017

Y. Suematsu ,
H. Fukushima  and
Y. Nishino
Y. Suematsu
Affiliation:
National Astronomical Observatory, Mitaka, Tokyo 181, Japan
H. Fukushima
Affiliation:
National Astronomical Observatory, Mitaka, Tokyo 181, Japan
Y. Nishino
Affiliation:
National Astronomical Observatory, Mitaka, Tokyo 181, Japan

Abstract

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Coronal images were taken in the light of the He I 10830 Å line, the 10000 Å continuum, and the Fe XIV 5303 Å line, with the aim of studying the thermal structure of the corona. In addition, spectroscopic observations were made in the violet wavelength region (3760-4060 Å) and near-infrared (10745-10835 Å), to obtain details of physical conditions of the corona, especially of its cool part. The data obtained do not show any distinct cool structures other than ordinary prominences. Some preliminary results concerning the corona and prominence structures are given.

Keywords

eclipsesHe I 10830 Åinfrared: starsSun: coronaSun: prominences
Type
Part 2: Infrared Observations of the 1991 Total Solar Eclipse
Information
Symposium - International Astronomical Union , Volume 154: Infrared Solar Physics , 1994 , pp. 205 - 210
Copyright
Copyright © Kluwer 1994 

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