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On the presence of SH in the sunspot spectrum (1979)

Joshi, G. C. ; Pande, M. C.

Springer

Solar physics 62 (1979), S. 69-75

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ISSN: 1573-093X

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract The expected equivalent widths of individual rotational lines of the most intense Q 2 branch of the 0-0 band of the A 2Σ-X2Πi; system of S32H and S34H have been calculated in the umbral spectrum for five disk positions using Zwaan's (1974) sunspot model. Percentage abundance of S34 in the terrestrial case has been considered valid in our calculations. Strong lines of S32H and S34H of the A-X band system should be detectable in the sunspot spectrum. The molecule SH may play a possible role as a major opacity source in the ultraviolet spectrum of sunspots along with the molecule OH in the upper layers (up to τ 0.5μm = 1.0) wherefrom most of the continuum arises. Study of this molecule in the umbral spectrum may also provide the solar isotopic abundance ratio N(S32)/N(S34).

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00150132

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