Abstract
Spectroheliograms taken in the CN(0, 0) violet band near λ 3883 Å show very small scale network and cell structures with high contrast. The bandhead itself, which is a broad feature due to overlap of several CN lines, allows the diagnostic simplicity of a continuum since motions, magnetic fields, and broadening mechanisms are unimportant. We have obtained spectroheliograms in the bandhead and center-to-limb photoelectric spectra of CN(0, 0) at Kitt Peak National Observatory. From the photoelectric spectra and a detailed analysis of the formation of the CN(0, 0) spectrum we derive a best-fit one-component upper photospheric model differing from that of the HSRA and recommend a change in solar carbon abundance from the HSRA value of logA c = 8.55 to logA c = 8.25. From the calibrated spectroheliograms we consider a multi-component model to account for the observed fine structure intensity variations.
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References
Allen, C. W.: 1963, Astrophysical Quantities, Athlone Press, London.
Arnold, J. and Nicholls, R.: 1973, J. Quant. Spectr. Radiative Transfer 13, 115.
Birge, R.: 1922, Astrophys. J. 55, 273.
Brault, J. W. and White, O. R.: 1971, Astron. Astrophys. 13, 169.
Brault, J. W., Slaughter, C. D., Pierce, A. K., and Aikens, R. S.: 1971, Solar Phys. 18, 366.
Brault, J. W.: 1972, unpublished.
Cowley, C. R.: 1964, Astrophys. J. 139, 1351.
de Jager, C. and Neven, L.: 1957, Mem. Soc. Roy. Sci. Liège 18, 357.
Dolan, J.: 1965, Astrophys. J. 142, 1621.
Gingerich, O., Noyes, R., Kalkofen, W., and Cuny, Y.: 1971, Solar Phys. 18, 347.
Herzberg, G.: 1950, Molecular Spectra and Molecular Structure, I. Spectra of Diatomic Molecules, 2nd ed., Van Nostrand Reinhold C., New York.
Houtgast, J.: 1970, Solar Phys. 15, 273.
Iwai, T., Savadatti, M., and Broida, H.: 1967, J. Chem. Phys. 47, 3861.
Khlystov, A.: 1970, Sov. Astron.-AJ 14, 83.
Laborde, G.: 1961, Ann. Astrophys. 24, 89.
Lambert, D.: 1968, Monthly Notices Roy. Astron. Soc. 138, 143.
McBride, B., Heimel, S., Ehlers, J., and Gordon, S.: 1963, NASA SP3001.
Moore, C. and Broida, H.: 1957, Mem. Soc. Roy. Sci. Liège 18, 252.
Moore, C., Minnaret, M., and Houtgast, J.: 1966, The Solar Spectrum 2935 Å to 8770 Å, Natl. Bur. Std. Monograph No. 61.
Mulliken, R.: 1931, Rev. Mod. Phys. 3, 89.
Mutschlecner, J. and Keller, C.: 1970, Solar Phys. 14, 294.
Nicolaides, C. and Sinanoglu, O.: 1973, Solar Phys. 29, 17.
Nikolsky, G.: 1969, Solar Phys. 6, 399.
Pecker, J. and Peuchot, M.: 1957, Mem. Soc. Roy. Sci. Liège 18, 352.
Porfir'eva, G.: 1972, Soviet Astron. - AJ 15, 975.
Roach, F.: 1939, Astrophys. J. 89, 99.
Schadee, A.: 1964, Bull. Astron. Inst. Neth. 17, 311.
Sheeley, N.: 1969, Solar Phys. 9, 347.
Tatum, J.: 1967, Astrophys. J. Suppl., No. 124.
Tsuji, T.: 1964, Ann. Tokyo Astron. Observ. (2nd Ser.) 9, 1.
Wager, A.: 1943, Phys. Rev. 64, 18.
Withbroe, G.: 1971, in Natl. Bur. Std. Spec. Publ. 353 (ed. by K. Gebbie), 127.
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Staff Member, Laboratory Astrophysics Division, National Bureau of Standards.
Visiting Astronomer at Kitt Peak National Observatory, which is operated by the Association of Universities for Research in Astronomy, Inc., under contract with the National Science Foundation.
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Mount, G.H., Linsky, J.L. & Shine, R.A. One- and multi-component models of the upper photosphere based on molecular spectra. Sol Phys 32, 13–30 (1973). https://doi.org/10.1007/BF00152726
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DOI: https://doi.org/10.1007/BF00152726