Improved rest frequencies for the submillimetre-wave spectrum of SiN

Details Improved rest frequencies for the submillimetre-wave spectrum of SiN Improved rest frequencies for the submillimetre-wave spectrum of SiN

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006a%26a...455.1161b&link_type=abstract

Astronomy and Astrophysics, Volume 455, Issue 3, September I 2006, pp.1161-1164

Astronomy and Astrophysics

Astrophysics

2

Molecular Data, Methods: Laboratory, Techniques: Spectroscopic, Radio Lines: Ism

Scientific paper

The submillimetre-wave spectrum of the SiN radical has been investigated in the laboratory using a source-modulation microwave spectrometer equipped with a negative glow discharge cell. SiN was produced in a SiCl4/N2 discharge plasma. Twenty-one new fine and hyperfine components up to N = 17-16 were observed reaching a frequency as high as 740 GHz. The new laboratory measurements provide much improved rest frequencies in the submillimetre spectral region useful for the identification of SiN lines in hot core sources and circumstellar shells.

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