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High resolution solar images at 10 microns: Sunspot details and photometry

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Abstract

A slow raster scanning device and a germanium bolometer are used to record two dimensional photometric information in the 9–12 μ region; the results can be displayed on a CRT to get real 10 μ photographs of the upper photosphere (τ 5000 ∼- 0.1) with a spatial resolution of 2 arc sec. Comparison with simultaneously obtained visible CRT photographs shows a significant improvement of atmospheric seeing at long wavelengths. Bright, small (unresolved?) points are observed around sunspots at 10 μ and may be related to the so-called ‘moustaches’ observed in the wings of strong lines. Umbral intensities are derived from the data and compared to various sunspots models.

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References

  • Beckers, J. M.: 1964, Thesis, Utrecht; Environmental Research Papers No. 49 (AFCRL-64-70).

  • Beckers, J. M. and Tallant, P. E.: 1969, Solar Phys. 7, 351.

    Google Scholar 

  • Bray, R. J. and Loughhead, R. E.: 1964, Sunspots, Chapman Hall, London.

    Google Scholar 

  • Cuny, Y.: 1970, private communication.

  • Coulman, C. E.: 1969, Solar Phys. 7, 122.

    Google Scholar 

  • Dolan, J. G.: 1965, Astrophys. J. 142, 1621.

    Google Scholar 

  • Dumont, S.: 1970, private communication.

  • Ellerman, F.: 1917, Astrophys. J. 46, 298.

    Google Scholar 

  • Frazier, E. N. and Scherrer, W.: 1969, Solar Phys. 10, 297.

    Google Scholar 

  • Fricke, K. and Elsässer, H.: 1965, Z. Astrophys. 63, 35.

    Google Scholar 

  • Gingerich, O. and De Jager, C.: 1968, Solar Phys. 3, 5.

    Google Scholar 

  • Girard, A.: 1964, Rech. Aérospatiale 99, 27.

    Google Scholar 

  • Hénoux, J. C.: 1968, Ann. Astrophys. 31, 511.

    Google Scholar 

  • Hénoux, J. C.: 1969, Astron. Astrophys. 2, 288.

    Google Scholar 

  • Kneer, F. and Mattig, W.: 1968, Solar Phys. 1, 42.

    Google Scholar 

  • Léna, P. J.: 1969, Solar Phys. 7, 217.

    Google Scholar 

  • Léna, P. J.: 1970, Astron. Astrophys. 4, 202.

    Google Scholar 

  • Léna, P. J., Livingston, W. C. and Slaughter, C. D.: 1968, Astron. J. 73, S67.

    Google Scholar 

  • Livingston, W. C.: 1968, Appl. Opt. 7, 425.

    Google Scholar 

  • Low, F.: 1961, J. Opt. Soc. Am. 51, 1300.

    Google Scholar 

  • Lyot, B.: 1944, Ann. Astrophys. 7, 31.

    Google Scholar 

  • MacMath, R. R., Mohler, O. C., and Dodson, H.: 1960, Proc. Nat. Acad. Sci. 46, 165.

    Google Scholar 

  • Martres, M. J.: 1970, private communication.

  • Noyes, R. W. and Hall, D.: 1969, private communication.

  • Pierce, A. K.: 1969, Solar Phys. 3, 498.

    Google Scholar 

  • Severny, A. B.: 1957, Soviet Astron. 1, 668 (Astron. Zh. 34, 684).

    Google Scholar 

  • Zwaan, C.: 1965, Rech. Inst. Astron. Utrecht 17 (4).

  • Zwaan, C.: 1968, Ann. Rev. Astron. Astrophys. 6, 135.

    Google Scholar 

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Authors and Affiliations

  1. Observatoire de Meudon et Université de Paris, 92, Meudon, France

    P. J. Turon & P. J. Léna

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  1. P. J. Turon
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  2. P. J. Léna
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Turon, P.J., Léna, P.J. High resolution solar images at 10 microns: Sunspot details and photometry. Sol Phys 14, 112–124 (1970). https://doi.org/10.1007/BF00240164

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