Search for H2D(+) at 372 GHz in dense interstellar clouds

Details Search for H2D(+) at 372 GHz in dense interstellar clouds Search for H2D(+) at 372 GHz in dense interstellar clouds

May 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...258..472p&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 258, no. 2, p. 472-478.

Astronomy and Astrophysics

Astrophysics

11

Deuterium Compounds, Gas-Ion Interactions, Hydrogen Compounds, Interstellar Matter, Molecular Clouds, Molecular Ions, Electron Density (Concentration), Ion Density (Concentration), Neutral Gases, Positive Ions

Scientific paper

The 1(10)-1(11) transition of ortho-H2D(+) at 372 GHz has been sought in several dark clouds. The transition was not detected; the best upper limits obtained are about 0.3 K (3 sigma). We derive upper limits for the ortho-H2D(+) column density and briefly discuss their meaning in comparison with a simple chemical model we have developed (Pagani et al., 1992).

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