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850 μm Observations of the 11 July 1991 Total Solar Eclipse

Published online by Cambridge University Press:  03 August 2017

M. W. Ewell ,
H. Zirin ,
J. B. Jensen  and
T. S. Bastian
M. W. Ewell
Affiliation:
Big Bear Solar Observatory, Caltech 264-33, Pasadena, CA 91125, U. S. A.
H. Zirin
Affiliation:
Big Bear Solar Observatory, Caltech 264-33, Pasadena, CA 91125, U. S. A.
J. B. Jensen
Affiliation:
Big Bear Solar Observatory, Caltech 264-33, Pasadena, CA 91125, U. S. A.
T. S. Bastian
Affiliation:
National Radio Astronomy Observatory, P. O. Box O, Socorro, NM 87801, U. S. A.

Abstract

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We present observations of the 11 July 1991 total solar eclipse made from the Caltech Submillimeter Observatory. The 850 μm limb is extended 3380±140 km above the visible limb, and there is a 10% brightening at the extreme limb. The measured limb height agrees with previous work at shorter and longer wavelengths. The run of limb heights with wavelength is well fit by a single electron density scale height. We argue that there is no need to invoke spicule geometry to explain the observations.

Keywords

eclipsesinfrared: starsSun: chromosphere
Type
Part 2: Infrared Observations of the 1991 Total Solar Eclipse
Information
Symposium - International Astronomical Union , Volume 154: Infrared Solar Physics , 1994 , pp. 161 - 166
Copyright
Copyright © Kluwer 1994 

References

Bangert, J. A., Fiala, A. D., and Harris, W. T.: 1989, United States Naval Observatory Circular No. 174. Google Scholar
Belkora, L., Hurford, G. J., Gary, D. E., and Woody, D.: 1992, Astrophys. J., submitted.Google Scholar
Breneman, H. H., and Stone, E. C.: 1985, Astrophys. J. (Letters) 299, L57.Google Scholar
Clark, T. A., Kendall, D. J. W., and Boreiko, R. T.: 1983, Infrared Phys. 23, 289.Google Scholar
Ellison, B. N., Schaffer, P. L., Schaal, W., Vail, D., and Miller, R. E.: 1989, Int'l J. IR & MM Waves 10, 8.Google Scholar
Ewell, M. W. Jr., Zirin, H., Jensen, J. B., and Bastian, T. S.: 1992, Astrophys. J., submitted.Google Scholar
Horne, K., Hurford, G. J., Zirin, H., and de Graauw, Th.: 1981, Astrophys. J. 244, 340.Google Scholar
Lindsey, C., Becklin, E. E., Jefferies, J. T., Orrall, F. Q., Werner, M. W., and Gatley, I.: 1983, Astrophys. J. (Letters) 264, L25.Google Scholar
Lindsey, C., Becklin, E. E., Orrall, F. Q., Werner, M. W., Jefferies, J. T., and Gatley, I.: 1986, Astrophys. J. 308, 448.Google Scholar
Lynch, D. K., Beckers, J. M., and Dunn, R. B.: 1973, Solar Phys. 30, 63.Google Scholar
Roellig, T. L., Becklin, E. E., Jefferies, J. T., Kopp, G. A., Lindsey, C. A., Orrall, F. Q., and Werner, M. W.: 1991, Astrophys. J. 381, 288.Google Scholar
Serabyn, E., Phillips, T. G., and Masson, C. R.: 1991, Appl. Optics 30, 1227.Google Scholar
Tukey, J. W.: 1977, Exploratory Data Analysis, Addison-Wesley, Reading, p.523.Google Scholar
Vernazza, J., Avrett, E. H., and Loeser, R.: 1981, Astrophys. J. Suppl. 45, 635.CrossRefGoogle Scholar
Zirin, H., Baumert, B. M., and Hurford, G. J.: 1991, Astrophys. J. 370, 779.Google Scholar