NASA NTRS · 19830042039
Facular influences on the apparent solar shape
Abstract
The problem of the influence of faculae on apparent solar shape is examined in light of general facular contrast models. The diagonal components of the oblateness signal from the faculae observed are calculated, and it is found that the faculae can contribute a signal whose time dependence is similar to that of the Dicke and Goldenberg (1967) oblateness signal, allowing an acceptable fit to the oblateness measurements for a facular contrast within the range of acceptable values.
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Schatten, K. H., Sofia, S.. 1983-01-13. Facular influences on the apparent solar shape. https://ntrs.nasa.gov/citations/19830042039
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