𝔖 Bobbio Scriptorium
✦   LIBER   ✦

16–40 Å coronal X-ray emission during the 12 November 1966 eclipse

✍ Scribed by H. V. Argo; J. A. Bergey; W. D. Evans; S. Singer

Publisher
Springer
Year
1968
Tongue
English
Weight
635 KB
Volume
5
Category
Article
ISSN
0038-0938

No coin nor oath required. For personal study only.

✦ Synopsis

The solar eclipse of 12 November 1966 was used to study the coronal emission near the limbs in selected emission lines between 16 and 40 A. Eight fixed-wavelength, curved crystal spectrometers were carried in each of 3 rocket launches to an altitude of 290 km and monitored the flux in each of eight narrow-wavelength intervals encompassing the principal emission lines fi'om the hydrogenlike and helium-like ions of C, N, and O. At totality the emissions dropped to background levcls of 1% or less of the ftdl sun values, showing that on the s'.)lar limbs on that day there was very little emission above 17000 km in these lines.

* Work performed tinder the auspices of the U.S. Atomic Energy Commission.

📜 SIMILAR VOLUMES

Photoelectric measurements of the green
Photoelectric measurements of the green coronal line during the eclipse of November 12, 1966
✍ J. McKim Malville; Edward J. Schmahl 📂 Article 📅 1968 🏛 Springer 🌐 English ⚖ 431 KB

A line to continuum ratio of the green line equal to 2.1 A was measured above the West limb at the height p = 1.75 solar radii during the eclipse. The lower limit to the abundance of iron relative to hydrogen obtained from these measurements is 4 • 10 -5.