Abstract
This paper gives a description of the technique and equipment used to make solar observations in the near IR region with a coronagraph. Examination of active-region spectra in the neighborhood of the He I 10830 Å line confirm that the the line is enhanced in sunspot umbrae. The line profiles of umbrae and faculae differ qualitatively. Flares show a decrease in the line depth in comparison to faculae, and in flare kernels the line undergoes an emission reversal. Simultaneous observations of spectra of chromospheric spicules at two heights above the solar surface reveal that the half-width of the 10830 line increases with height.
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References
Borodino, O. A. and Papushev, P. G. 1979, Pisma v A. Zh. 5, 620.
Fay, T. D., Wyller, A. A. and Yun, H. S. 1972, Solar Phys. 23, 58.
Livshitz, M. A. and Demkina, L. B. 1965, Soln. Dannye, No. 10, 55.
Nikolsky, G. M. 1965, Astron. Zh. 42, 86.
Nikolsky, G. M. and Sazanov, A. A. 1967, Astron. Zh. 44, 426.
Papushev, P. G. and Salakhutdinov, R. T. 1989, Proceedings of the XIII Consultation Meeting on Solar Phys. 1, 263.
Stepanov, V. E. 1957, Soobshch. Gos. Astron. In-Ta Im. Shternberga, no. 100, 3.
Zirker, J. B. 1962, Ap. J. 136, 250.
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© 1994 Springer Science+Business Media Dordrecht
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Levkovsky, V., Papushev, P., Salakhutdinov, R. (1994). An Investigation of IR Triplet He I 10830 Å Profiles in Active Regions and the Quiet Chromosphere. In: Rabin, D.M., Jefferies, J.T., Lindsey, C. (eds) Infrared Solar Physics. International Astronomical Union / Union Astronomique Internationale, vol 154. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-1926-9_10
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DOI: https://doi.org/10.1007/978-94-011-1926-9_10
Publisher Name: Springer, Dordrecht
Print ISBN: 978-0-7923-2523-9
Online ISBN: 978-94-011-1926-9
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