𝔖 Bobbio Scriptorium
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λ 4097.3 Niiiemission in the chromospheric spectrum?

✍ Scribed by D. L. Lambert

Book ID
104650006
Publisher
Springer
Year
1971
Tongue
English
Weight
187 KB
Volume
16
Category
Article
ISSN
0038-0938

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✦ Synopsis

The recent tentative identification of a chromospheric emission line at 2| : 4097.342/~ with the Nm transition 3s "2S1/., --3p ~P~ is discussed. It is shown that the observed intensity is inconsistent with the observed flux in the XUV resonance lines and considerably greater than the predicted intensity from the chromosphere-corona transition zone. Microphotometry of a plate shows that the 'line' is a short interval of continuum between absorption lines.

Ct,, = 1.7 • 10 -3 --bf 10 -s 040 W,./T cm 3 sec -1.

📜 SIMILAR VOLUMES

Chromospheric oscillations observed in t
Chromospheric oscillations observed in the line Ciiλ1336 with OSO-8
✍ Eric G. Chipman 📂 Article 📅 1977 🏛 Springer 🌐 English ⚖ 473 KB

Satellite observations of velocity and intensity oscillations were made of the upper chromospheric line C tt A 1336. The dominant period of oscillation is 300 s, with little evidence of the power peak in the range 150-200 s which has been observed in other chromospheric lines. Peak-to-peak amplitude