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astro-ph2003
Sulphur chemistry in the envelopes of massive young stars
F. F. S. van der Tak, A. M. S. Boonman, R. Braakman +1
The sulphur chemistry in nine regions in the earliest stages of high-mass star formation is studied through single-dish submillimeter spectroscopy. The line profiles indicate that…
astro-ph2002
Sulphur chemistry in the envelopes of massive young stars
F. F. S. van der Tak, A. M. S. Boonman, R. Braakman +1
We present submillimeter observations of SO, SO2, H2S, H2CS, OCS, NS and HCS+ toward nine massive young stars. The outflow contributes ~50% to the SO and SO2 emission in 15-20'' be…