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Asymmetry of the contours of the Fe X 6374-Å coronal line

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Abstract

The mass qualitative analysis of the contours of the 6374 are asymmetric. The fractions of the asymmetric contours with more intense blue and red wings are 52 and 28%, respectively. In order to reveal the nature of the enhancement of the contour wings, the histograms of the ray velocity distributions in each 10°-latitude range have been considered using the same data (about 5500 contours reduced to the NE quadrant). These distributions also exhibit blue asymmetry, which is apparently caused by the shortage of motions on the surface of the Sun compared to rotation. This is in agreement with the results obtained in [Labonte and Howard, 1982; Makarov and Tlatov, 1995]. The nature of the blue wings of the Fe X 6374 ar way.

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References

  • Billings, D., A Guide to the Solar Corona, New York: Academic, 1966.

    Google Scholar 

  • Chandrasekhar, T., Desai, I.N., Ashok, N.M., Pasachoff, J.M., et al., Farby-Perot Interferometric Observations of the Coronal Red and Green Lines during the 1983 Indonesian Eclipse, Appl. Opt., 1984, vol. 23, pp. 508–511.

    Article  Google Scholar 

  • Delone, A.B., Makarova, E.A., and Iakunina, G.V., Evidence for Moving Features in the Coronal Emission Line Profiles Observed during Eclipses, J. Astrophys. Astron., 1988, vol. 9, pp. 41–47.

    Article  Google Scholar 

  • Kuklin, G.V. and Stepanov, V.E., Zonal Flows in the Solar Corona, Publ. Debrecen Helioph. Obs., 1983, vol. 5, pp. 389–408.

    Google Scholar 

  • Labonte, B.J. and Howard, R., Torsional Waves on the Sun and the Activity Cycle, Solar Phys., 1982, vol. 75, pp. 161–178.

    Article  Google Scholar 

  • Makarov, V.I. and Tlatov, A.G., Torsional Mode in the Solar Corona Intensity Variations in the FeXIV 5303 Line, Astron. Zh., 1995, vol. 72, no. 5, pp. 749–752.

    Google Scholar 

  • Makarov, V.I. and Tlatov, A.G., Torsional Oscillations in the Solar Corona, Astron. Zh., 1997, vol. 74, no. 4, pp. 615–620 [Astron. Rep., vol. 41, no. 4, pp. 543–547].

    Google Scholar 

  • Raju, K.P., Desai, J.N., Chandrasekhar, T., and Ashok, N.M., Line-of-Sight Velocities Observed in Inner Solar Corona during the Total Eclipses of 1980 and 1983, Mon. Not. Astron. Soc., 1993, vol. 263, pp. 789–797.

    Google Scholar 

  • Raju, K.P., The Effect of Mass Motions Inside the Coronal Loops on Emission Line Profiles, Solar Phys., 1999, vol. 185, pp. 311–322.

    Article  Google Scholar 

  • Stepanov, V.E. and Tyagun, N.F., Investigation of Coronal Rotation by the Spectroscopic Method, in Proc. IAU Symposium N 71 “Basic Mech. of Solar Activity,” Bumba and Klezek, Eds., Dordrecht, 1971, pp. 101–106.

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  1. Institute of Solar-Terrestrial Physics, Siberian Branch, Russian Academy of Sciences, ul. Lermontova 126a, Irkutsk, 664033, Russia

    N. F. Tyagun

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  1. N. F. Tyagun
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Original Russian Text © N.F. Tyagun, 2009, published in Solnechno-Zemnaya Fizika, 2009, Vol. 14, pp. 19–22.

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Tyagun, N.F. Asymmetry of the contours of the Fe X 6374-Å coronal line. Geomagn. Aeron. 50, 860–863 (2010). https://doi.org/10.1134/S0016793210070054

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