Absolute transition probabilities for some lines of neutral calcium

Details Absolute transition probabilities for some lines of neutral calcium Absolute transition probabilities for some lines of neutral calcium

Jan 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975a%26a....38....1s&link_type=abstract

Astronomy and Astrophysics, vol. 38, no. 1, Jan. 1975, p. 1-4.

Astronomy and Astrophysics

Astrophysics

45

Abundance, Calcium, Electron Transitions, Line Spectra, Solar Spectra, Transition Probabilities, Absorption Spectra, Electrophotometry, Ground State, Neutral Particles, Radiative Lifetime

Scientific paper

Accurate new measurements of transition probabilities are presented for two line multiplets of the neutral calcium spectrum which are often used in solar abundance analyses. Both multiplets have the same lower term situated at 1.9 eV above the ground state. The measurements were made on a relative scale using the technique of furnace absorption with photoelectric photometry and placed on an absolute scale by reference to recent lifetime determinations. A critical comparison is made with the results of other workers and the relationship between the new absolute values and those used in recent solar abundance analyses is discussed.

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