Abstract
view Abstract Citations (2) References Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Equivalent Widths of Atomic Lines in Sunspot Spectra. Abhyankar, K. D. ; Ramanathan, A. S. Abstract Equivalent widths of 82 Cr I lines, 70 Fe I lines, and 74 Ti I lines are measured in the spectra of four sunspots of average area 55 millionths of the visible hemisphere of the sun. Separate curves of growth for Cr I, Fe i, and Ti I are constructed. Excitation temperatures of 4030 + 80 4200 + 150 , and 3800 i 100 are obtained for Cr I, Fe I, and Ti i, respectively. Publication: The Astrophysical Journal Pub Date: May 1955 DOI: 10.1086/146039 Bibcode: 1955ApJ...121..739A full text sources ADS |
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