Rotational spectra of the X 2Sigma(+) states of CaH and CaD

Details Rotational spectra of the X 2Sigma(+) states of CaH and CaD Rotational spectra of the X 2Sigma(+) states of CaH and CaD

May 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...408l..61f&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 408, no. 1, p. L61-L64.

Astronomy and Astrophysics

Astrophysics

12

Calcium Compounds, Deuterium Compounds, Electron States, Interstellar Matter, Metal Hydrides, Rotational Spectra, Electron Transitions, Free Radicals, Hyperfine Structure

Scientific paper

The rotational spectra of the 2Sigma(2+) ground states of calcium monohydride and monodeuteride have been recorded in absorption between 250 and 700 GHz. The gas phase free radicals have been produced in a ceramic furnace by the reaction of elemental calcium with molecular hydrogen or deuterium in the presence of an electrical discharge. The molecular constants including the rotational constant, centrifugal distortion constants, spin-rotation constants, and magnetic hyperfine interaction constants have been extracted from the spectra.

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