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| EPoS Contribution |
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Progress on the search for D2H+ in star forming regions
Berengere Parise Max-Planck-Institut für Radioastronomie, Bonn, Germany | |
| H2D+ and D2H+ are two molecules who gained considerable attention in the last years, because of their characteristic of being unique probes of cold and depleted environments. These ions are at the basis of the molecular deuteration which is widely observed in star forming regions, and their simultaneous observation is essential to understand deuterium fractionation effects. H2D+ is now observed routinely, but the search for its isotopologue D2H+ has proven to be very difficult, because of the high frequency of its para ground-state line (692 GHz). The commissioning of the CHAMP+ receiver at the APEX telescope, located in a site benefiting from optimal submillimeter observing conditions has opened new possibilities in this search. We present here the results of our on-going search for D2H+ towards star-forming environments, and their implications in the understanding of the deuterium fractionation. | |
| Collaborators: Arnaud Belloche, MPIfR, Germany Fujun Du, MPIfR, Germany Rolf Güsten, MPIfR, Germany |
Suggested Session:
Chemistry, Cores and Collapse |