The rotational spectrum of protonated sulfur dioxide, HOSO+

Details The rotational spectrum of protonated sulfur dioxide, HOSO+ The rotational spectrum of protonated sulfur dioxide, HOSO+

Sep 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011a%26a...533l..11l&link_type=abstract

Astronomy & Astrophysics, Volume 533, id.L11

Astronomy and Astrophysics

Astrophysics

1

Ism: Molecules, Radio Lines: Ism, Molecular Processes, Molecular Data, Line: Identification

Scientific paper

Aims: We report on the millimeter-wave rotational spectrum of protonated sulfur dioxide, HOSO+. Methods: Ten rotational transitions between 186 and 347 GHz have been measured to high accuracy in a negative glow discharge. Results: The present measurements improve the accuracy of the previously reported centimeter-wave spectrum by two orders of magnitude, allowing a frequency calculation of the principal transitions to about 4 km s-1 in equivalent radial velocity near 650 GHz, or one linewidth in hot cores and corinos. Conclusions: Owing to the high abundance of sulfur-bearing molecules in many galactic molecular sources, the HOSO+ ion is an excellent candidate for detection, especially in hot cores and corinos in which SO2 and several positive ions are prominent.

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