Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 341, Issue 2, Pages 657-661Publisher
WILEY-BLACKWELL
DOI: 10.1046/j.1365-8711.2003.06443.x
Keywords
ISM : clouds; dust, extinction; ISM : lines and bands; ISM : molecules; infrared : ISM
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We consider sulphur depletion in dense molecular clouds, and suggest hydrated sulphuric acid, H(2) SO(4) . n H(2) O, as a component of interstellar dust in icy mantles. We discuss the formation of hydrated sulphuric acid in collapsing clouds and its instability in heated regions in terms of the existing hot core models and observations. We also show that some features of the infrared spectrum of hydrated sulphuric acid have correspondence in the observed spectra of young stellar objects.
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