Extension of the solar limb at sub-millimeter and millimeter wavelengths |
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| Authors: | T. Alan Clark David A. Naylor G. J. Tompkins W. D. Duncan |
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| Affiliation: | (1) University of Calgary, T2N1N4 Calgary, Alberta, Canada;(2) University of Lethbridge, T1K3M4 Lethbridge, Alberta, Canada;(3) Joint Astronomy Centre, 96720 Hilo, Hawaii, U.S.A. |
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| Abstract: | Solar limb scanning at 5 wavelengths from 0.35 to 2 mm on the JCMT has revealed significant limb extension which increases rapidly with wavelength, in agreement with other measurements. This appears to be related to the increasing opacity of overlapping spicules which appear to become optically thick at about 1mm. |
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