Identification of CrH and CrD Molecular Lines in the Sunspot Umbral Spectrum |
| |
Authors: | B Viswanathan R Shanmugavel S P Bagare N Rajamanickam P Sriramachandran |
| |
Institution: | (1) Physics Research Centre, V.H.N.S.N. College, Virudhunagar, 626 001, India;(2) Indian Institute of Astrophysics, Bangalore, 560 034, India |
| |
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. |
| |
Keywords: | Sunspots Effective rotational temperature CrH and CrD molecular lines |
本文献已被 SpringerLink 等数据库收录! |
|