Absolute brightness temperatures and brightness temperature ratios of a quiet region near the center of the solar disk and the central region of the new moon were measured simultaneously at the 6 mm wavelength. The measured quiet sun/new moon brightness temperature ratios and reported central bright
Comments on the quiet Sun brightness distribution at 1.2 mm wavelength
β Scribed by M. R. Kundu; Sou-Yang Liu
- Publisher
- Springer
- Year
- 1975
- Tongue
- English
- Weight
- 215 KB
- Volume
- 44
- Category
- Article
- ISSN
- 0038-0938
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β¦ Synopsis
A re-analysis of the brightness distribution of the quiet Sun at 1.2 mm wavelength is made. It is concluded that there is no evidence for uniform or limb-brightened distribution at this wavelength.
* NAS-NRC Research Associate on sabbatical leave from the University of Maryland.
π SIMILAR VOLUMES
Center-to-limb brightncss distribution measurements of the quiet Sun at a wavelength of 3.3 mm show that there is a slight limb brightening at this wavelength. Within the measurement accuracy of the system used, the limb brightening function is only radially dependent. At 3.3 mm, the measuremcn ts a
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 li