Comparative chemistry of diffuse clouds III: sulfur-bearing molecules
arXiv:astro-ph/0201163 · doi:10.1051/0004-6361:20020043
Abstract
Using data from IRAM's Plateau de Bure Interferometer and 30 m Telescope, we discuss the mm-wave absorption lines of CS, SO, H2S and HCS+ which arise in diffuse clouds occulting several extragalactic continuum sources. Typical relative abundances are X(CS)/X(HCO+) ~ 2, X(CS)/X(SO) ~ 2, X(CS)/X(H2S) ~ 6 and X(CS)/X(HCS+) ~ 13.
Accepted by A&A 2002-Jan-10