Observations of photospheric pole-equator temperature differences |
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Authors: | Richard C Altrock Richard C Canfield |
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Institution: | (1) Sacramento Peak Observatory, Air Force Cambridge Research Laboratories, 88349 Sunspot, N.M., U.S.A. |
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Abstract: | Using photoelectric methods we have repeated Plaskett's (1970) measurements of poleequator temperature differences. We average many limb-darkening scans to reduce statistical errors. We then analyze the differences between the average polar and equatorial scans. Plaskett's large poleequator temperature differences are not confirmed. Our data yield a pole-equator temperature difference of 1.5K±0.6K, although we cannot rule out systematic errors of 3–4 K. |
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