Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977rspsa.357..355h&link_type=abstract
Royal Society (London), Proceedings, Series A, vol. 357, no. 1690, Nov. 4, 1977, p. 355-379.
Astronomy and Astrophysics
Astronomy
21
Absorption Spectra, Atomic Excitations, Chromium, Electron Transitions, Metallic Stars, Oscillators, Ultraviolet Astronomy, Atomic Energy Levels, Electron States, Fine Structure, Furnaces, Tables (Data)
Scientific paper
Measurements of 148 oscillator strengths of neutral chromium transitions were made on Cr vapor in a high-temperature furnace by the hook and absorption methods for strong and weak lines, respectively. With the aid of a 5D-z 5F0 multiplet, the product of the oscillator strengths of the lines of this multiplet with the column densities of their respective lower levels could be determined, and by using estimated oscillator strengths for these lines, all data could be put on a common relative scale. This scale was altered so that the results were matched with relative emission intensities. Results are compared with other authors' results. A correction to the hook method constant was also determined.
Huber Martin C. E.
Sandeman R. J.
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