Photoprocessing of H2S on dust grains. Building S chains in translucent clouds and comets

@article{Cazaux2021PhotoprocessingOH,
  title={Photoprocessing of H2S on dust grains. Building S chains in translucent clouds and comets},
  author={St{\'e}phanie Cazaux and H{\'e}ctor Carrascosa and Guillermo M. Mu{\~n}oz Caro and Paola Caselli and Asunci{\'o}n Fuente and D. Navarro-Almaida and P. Rivi'ere-Marichalar},
  journal={Astronomy \& Astrophysics},
  year={2021}
}
Context. Sulfur is used as a tracer of the evolution from interstellar clouds to stellar systems. However, most of the expected sulfur in molecular clouds remains undetected. Sulfur disappears from the gas phase in two steps. One first depletion occurs during the translucent phase, reducing the gas phase sulfur by 7-40 times, while the following freeze-out step occurs in molecular clouds, reducing it by another order of magnitude. This long-standing dilemma awaits an explanation. Aims. The aim… Expand

References

Monte Carlo Simulations of the Formation and Morphology of Interstellar Ices
The porosity present in ices contains many clues on the conditions of their formation and evolution, as well as their trapping capacities. Laboratory experiments studying such porosity are essentialExpand