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Title: Time variability of the He I 10830 A line profile
Authors: Singh, J
Jain, S. K
Venkatakrishnan, P
Keywords: Helium;Infrared Astronomy;Infrared Spectra;Line Spectra;Solar Atmosphere;Solar Corona;Solar Spectra;Spectral Line Width;Spectrum Analysis;Spicules;Time Dependence;Ultraviolet Spectra;Cross Correlation;Magnetic Signatures;Plasma Density;Plasma Turbulence;Signal To Noise Ratios;Solar Rotation;Statistical Analysis;Time Series Analysis
Issue Date: Mar-1994
Publisher: Springer
Citation: Solar Physics, Vol. 150, No. 1-2, pp. 49 - 59
Abstract: We have studied the time-dependent behavior of the He I 10830 A line. These studies show that (1) the fluctuations of the line width are uncorrelated with the equivalent-width fluctuations and (2) the autocorrelation curves for the equivalent-width fluctuations are broader than those for line-width fluctuations. These results could be interpreted as the signatures of the eruption of density inhomogeneities, like spicules, into the altitudes of formation of the He I 10830 A line.
ISSN: 0038-0938
Appears in Collections:IIAP Publications

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