๐”– Bobbio Scriptorium
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Interferometer observations of the solar brightness distribution at 8.6 mm wavelength

โœ Scribed by Ikuro Suzuki; Kin-Aki Kawabata; Hideo Ogawa

Publisher
Springer
Year
1976
Tongue
English
Weight
503 KB
Volume
46
Category
Article
ISSN
0038-0938

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โœฆ Synopsis

The brightness distribution of the quiet Sun at 8.6 mm wavelength is synthesized from off-meridian observations using an eight element east-west interferometer with a maximum base line of 16.38 m (1913A). The observed brightness distribution is practically flat from the disk center to the optical limb. The effective radius of the nearly uniform component is 1.01 R| If the limb brightening is present, the brightening located between 0.95 R| and 1.01 R| and the total flux density of the limb brightening is less than 1% of the total flux density of the.Sun. In addition to the nearly uniform component there exists a coronal component just outside the optical limb.

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