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- Title
Identification of CrH and CrD Molecular Lines in the Sunspot Umbral Spectrum.
- Authors
Viswanathan, B.; Shanmugavel, R.; Bagare, S. P.; Rajamanickam, N.; Sriramachandran, P.
- Abstract
High-resolution Fourier transform spectrometer sunspot umbral spectra obtained at the National Solar Observatory/Kitt Peak were used to identify molecular rotational lines arising from the infrared band systems of CrH and CrD molecules. Measurement of the equivalent width used the Gaussian-profile approximation method, which is suitable especially for faint lines. Equivalent widths are measured for an adequate number of best lines of the A – X (0,0) band of CrH and the A – X (0,0;1,0) bands of CrD and, thereby, the effective rotational temperatures are estimated.
- Subjects
SUNSPOTS; SOLAR activity; SOLAR radiation; SPECTRUM analysis; SPECTROMETERS
- Publication
Solar Physics, 2009, Vol 257, Issue 2, p261
- ISSN
0038-0938
- Publication type
Article
- DOI
10.1007/s11207-009-9374-1