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http://hdl.handle.net/2248/2667
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. |
URI: | http://hdl.handle.net/2248/2667 |
ISSN: | 0038-0938 |
Appears in Collections: | IIAP Publications |
Files in This Item:
File | Description | Size | Format | |
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Singh Jagdev.pdf | 784.36 kB | Adobe PDF | ![]() View/Open |
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