Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997acasn..38..225c&link_type=abstract
Acta Astronomica Sinica, vol. 38, p. 225
Astronomy and Astrophysics
Astronomy
Interstellar Matter, Molecular Collisions, Hyperfine Structure, Ammonia, Helium
Scientific paper
In this paper, the collision cross sections and the rate coefficients for the hyperfine transitions of interstellar molecules of ortho-NH3 colliding with He are calculated by solving the coupled equations in the CS (Coupled State) approximation with the R-matrix propagation method. The results provide useful fundamental data for the investigation of astronomical information.
Chen Ji
Zhang Ya-hui
Zhou Tian-Chun
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