Millimeter-Wave Studies of Molecules in the Laboratory and in Space

Details Millimeter-Wave Studies of Molecules in the Laboratory and in Space Millimeter-Wave Studies of Molecules in the Laboratory and in Space

Sep 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997phdt.........9a&link_type=abstract

Thesis (PHD). ARIZONA STATE UNIVERSITY , Source DAI-B 58/03, p. 1302, Sep 1997, 363 pages.

Astronomy and Astrophysics

Astrophysics

Interstellar, Spectrometry

Scientific paper

Millimeter/sub-millimeter wave studies of astrophysically interesting molecules have been conducted both in the laboratory and in the interstellar medium. The astronomical work includes the detection and identification of several new interstellar molecules, including MgCN, AlF, N2O, H2COH+ and HOC+. A spectral line survey of Orion-KL from 273.5 to 300.0 GHz using the NRAO 12 meter telescope has been conducted as well, along with a detailed analysis in which 22 known interstellar species have been identified. Molecular abundances and rotational temperatures for most of these species in this survey have been determined. The laboratory work involved the recording and analysis of the pure rotational spectra of AlOH, AlOD, SrCCH, MgOH, MgOD, LiOH, LiOD and CaOD. For AlOH, this was the first laboratory data obtained for this molecule. These studies also showed that both MgOH and LiOH are quasilinear species, as particularly evidenced by the analysis of their excited vibrational modes. Finally, the laboratory work required a new spectrometer design and software development, which is additionally described.

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