𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The radio radius of the Sun at millimeter and centimeter wavelengths

✍ Scribed by Paul N. Swanson


Publisher
Springer
Year
1973
Tongue
English
Weight
159 KB
Volume
32
Category
Article
ISSN
0038-0938

No coin nor oath required. For personal study only.

✦ Synopsis


The radio radius of the Sun is determined from an analysis of the radio contact times of the 7 March, 1970 and 10 July, 1972 solar eclipses from 2 = 3 mm to 2 = 31 cm. Agreement with other eclipse measurements is good. A best fit curve through the several points gives the radio radius to within approximately β€’ 0.01 of the photosheric radius below 2-~ 5 cm.


πŸ“œ SIMILAR VOLUMES


Ubiquitous chromospheric structures obse
✍ Kenneth R. Lang πŸ“‚ Article πŸ“… 1978 πŸ› Springer 🌐 English βš– 309 KB

Unique long-term visibility variations are detected when the quiet Sun is observed with interferometers operating at 8 mm and 11 cm wavelength with angular resolutions of -0.5'. Quasiperiodic fluctuations in fringe amplitude are observed with periods between 20 and 30 rain, and with amplitude nulls

Compact, variable sources on the Sun at
✍ Robert F. Willson; Kenneth R. Lang πŸ“‚ Article πŸ“… 1988 πŸ› Springer 🌐 English βš– 882 KB

Very Large Array (VLA) observations of compact transient sources on the Sun at 2 cm wavelength are presented. These sources have angular sizes of 0~5"-25", brightness temperatures of T~ ~ 1-3 x 105 K, and lifetimes ranging between a few minutes to several hours. The emission originates in regions of

The radius of the Sun at centimeter wave
✍ E. FΓΌrst; W. Hirth; P. Lantos πŸ“‚ Article πŸ“… 1979 πŸ› Springer 🌐 English βš– 636 KB

We report observations of the solar radio radius at wavelengths between 1.2 and 11 cm performed with the Bonn 100 m-telescope. In combination with former measurements of the centre-tolimb variation of the solar brightness these observations are discussed in terms of atmospheric models. We consider t

Reconciling the centimeter- and millimet
✍ Kiruthika Devaraj; Paul G. Steffes; Bryan M. Karpowicz πŸ“‚ Article πŸ“… 2011 πŸ› Elsevier Science 🌐 English βš– 978 KB

Over 1000 laboratory measurements of the 2-4 mm-wavelength opacity of ammonia have been made under simulated jovian atmospheric conditions using a high-precision laboratory system developed at Georgia Tech. These laboratory measurements of the opacity of ammonia were made of various gas mixtures of