𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Does H−truly cool the solar chromosphere?

✍ Scribed by Thomas R. Ayres


Publisher
Springer
Year
1980
Tongue
English
Weight
486 KB
Volume
68
Category
Article
ISSN
0038-0938

No coin nor oath required. For personal study only.

✦ Synopsis


I examine the controversial problem of H radiative cooling in the solar chromosphere. I find, in agreement with Praderie and Thomas, that H-is a substantial source of radiative heating in the outer atmosphere, especially when departures from LTE are important. The role of H-as a chromospheric heating agent must be considered carefully before net radiative cooling rates can be assessed from empirical chromospheric models, or calculations of nonradiative heating, for example by acoustic waves, can be pursued meaningfully.


📜 SIMILAR VOLUMES


Properties of the solar chromosphere Hα
✍ V. I. Kulidzanishvili; G. M. Nikolsky 📂 Article 📅 1978 🏛 Springer 🌐 English ⚖ 334 KB

Time succession of 25 Ha spicules has been studied. The spectra are obtained at a height of 6 arc sec during 21 rain (38 pictures) with the 53 cm Lyot coronagraph. Total intensities W, widths AA and radial velocities Vr are determined (about 650 Ha line profiles). For 14 spicules the sign of V, vari

Dynamics of Hα spicules according to spe
✍ V. I. Kulidzanishvili 📂 Article 📅 1980 🏛 Springer 🌐 English ⚖ 537 KB

Almost simultaneous height sequences of 69 spicules in the Ha line have been studied. The spectra are obtained at six heights during 6 s on the east side of the solar disk with the 53-cm Lyot coronagraph of Abastumani Astrophysical Observatory. Radial velocities V,, total intensities or equivalent

03/02551 Modeling the design and perform
📂 Article 📅 2003 🏛 Elsevier Science ⚖ 202 KB

13 Space heating and cooling tcmpcrature of 420 K. An exergy analysis was performed to study losses in differeflt components of the cycle. It is seen that the largest contribution to cycle irreversibility comes from the absorber, with the rectifier and solution heat exchanger also contributing signi