A recalibration of the quiet Sun millimeter spectrum based on the Moon as an absolute radiometric standard |
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Authors: | Jeffrey L. Linsky |
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Affiliation: | (1) Joint Institute for Laboratory Astrophysics, University of Colorado, 80302 Boulder, Colo., U.S.A. |
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Abstract: | The solar millimeter continuum between 1 and 20 mm is recalibrated using observations of the average lunar brightness temperature at the center of lunar disk and new Moon brightness temperatures. The solar data are placed on a common scale according to the average lunar brightness temperature distribution proposed by Linsky. A least-squares parabolic regression curve is proposed for the solar millimeter continuum. A small departure from this regression curve near 8 mm may indicate the existence of an absorption feature.Staff member, Laboratory Astrophysics Division, National Bureau of Standards. |
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