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(A-X) system of SiO in sunspots

✍ Scribed by G. C. Joshi; L. M. Punetha; M. C. Pande

Publisher
Springer
Year
1979
Tongue
English
Weight
263 KB
Volume
62
Category
Article
ISSN
0038-0938

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✦ Synopsis

The calculated equivalent widths of some lines of SiO in the umbral spectrum suggest that strong lines of Si28016, Si29016 and Si3~ 16 may be present in the sunspot ultraviolet spectrum. We also find that between 37 000 and 47 000 cm i the quasi-continuous absorption of SiO dominates all other absorptions.

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With the aim of investigating the resonance system of NO, equivalent width calculations have been made for the 213.575 nm, O1(31.5) line of the 1-0 band of y-system of NO for the photospheric HSRA model, and for the line 214.012 nm, O1(25.5) line of the same band system for Zwaan's (1974) sunspot mo