Time variability of the He I 10830 A line profile

Please use this identifier to cite or link to this item: 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

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