Collisional excitation of interstellar formaldehyde

Details Collisional excitation of interstellar formaldehyde Collisional excitation of interstellar formaldehyde

Jul 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apjs...37..321g&link_type=abstract

Astrophysical Journal Supplement Series, vol. 37, July 1978, p. 321-341. Navy-supported research;

Astronomy and Astrophysics

Astrophysics

81

Formaldehyde, Interstellar Chemistry, Line Spectra, Molecular Collisions, Molecular Excitation, Collision Rates, Helium, Hydrogen, Pressure Broadening, Scattering Cross Sections, Space Temperature, Tables (Data), Temperature Effects, Transition Probabilities

Scientific paper

Previous calculations for rates of excitation of ortho-H2CO by collisions with He have been extended to higher rotational levels and kinetic temperatures to 80 K. Rates for para-H2CO have also been computed. Pressure-broadening widths for several spectral lines have been obtained from these calculations and are found to agree with recent data within the experimental uncertainty of 10%. Excitation of formaldehyde by collisions with H2 molecules is also discussed.

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