Abstract
view Abstract Citations (32) References (17) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Ground-based Detection of an Infrared [Si x] Coronal Emission Line and Improved Wavelengths for the Infrared [Fe xiii] Emission Lines Penn, M. J. ; Kuhn, J. R. Abstract The wavelength of an infrared (Si X) coronal emission line is measured to be 1430.084 +/- 0.006 nm with a coronagraph of the National Solar Observatory at Sacramento Peak (NSOINP). New measurements of the infrared (Fe XIII) emission lines locate the central wavelengths at 1074.617 +/- 0.005 nm and 1079.783 +/- 0.006 nm. The slit-averaged line center intensities were 4.5, 27.8, and 5.2 (in units of 10-6 B(solar)) for the 1430 nm, 1075 nm, and 1080 nm emission lines, repectively. The spatial distribution of (Si X) emission is correlated with the coronal electron density as determined from the (Fe XIII) line ratio. Upper limits are set for coronal emission near 1266 nm and 1523 nm. Publication: The Astrophysical Journal Pub Date: October 1994 DOI: 10.1086/174784 Bibcode: 1994ApJ...434..807P Keywords: Emission Spectra; Infrared Astronomy; Iron; Silicon; Solar Corona; Electron Density (Concentration); Infrared Imagery; Spatial Distribution; Solar Physics; LINE: IDENTIFICATION; SUN: CORONA; SUN: INFRARED full text sources ADS |
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