Laboratory studies of astronomically relevant molecules harboring second-row elements

Details Laboratory studies of astronomically relevant molecules harboring second-row elements Laboratory studies of astronomically relevant molecules harboring second-row elements

May 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011iaus..280p.358t&link_type=abstract

The Molecular Universe, Posters from the proceedings of the 280th Symposium of the International Astronomical Union held in Tole

Astronomy and Astrophysics

Astronomy

Scientific paper

A substantial fraction of the known astronomical molecules harbor the second-row heavy elements silicon, phosphorus and sulfur. Rich in such molecules are the circumstellar shells of late-type stars (in particular IRC+10216) but some are also found in high-mass star-forming regions. Over the last few years we have been working on the characterization of transient molecules of this category using Fourier transform microwave and free-space millimeter wave techniques as well as high-level quantum chemical calculations at the coupled-cluster level of theory. These joined efforts have led to the first detection of several new species in the gas phase including H_2SiS, HPSi, HPS, OSiS, HOSO^+ and several more which will be described in some detail.

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