The effects of the observed spectrum of microwave background radiation on formaldehyde excitation

Details The effects of the observed spectrum of microwave background radiation on formaldehyde excitation The effects of the observed spectrum of microwave background radiation on formaldehyde excitation

Dec 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...234..861m&link_type=abstract

Astrophysical Journal, Part 1, vol. 234, Dec. 15, 1979, p. 861, 862.

Physics

Atomic Physics

7

Background Radiation, Big Bang Cosmology, Centimeter Waves, Electron Transitions, Formaldehyde, Interstellar Matter, Molecular Excitation, Gas Density, Hydrogen, Interstellar Masers, Quenching (Atomic Physics)

Scientific paper

The recently improved determination of the spectral shape of the
'big-bang' radiation has made it possible to assess some of its effects
on cooling of the 6 cm and 2 cm transitions of interstellar
formaldehyde. One new result is that a minimum H2 density is not
required to cause anomalous absorption at 6 cm.

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