50 citations · 103 across the 4 of their papers we have counts for
4 papers
Revised Models of Interstellar Nitrogen Isotopic Fractionation
E. S. Wirström, S. B. Charnley
Nitrogen-bearing molecules in cold molecular clouds exhibit a range of isotopic fractionation ratios and these molecules may be the precursors of N enrichments found in come…
A Search for O_2 in CO-depleted Molecular Cloud Cores with Herschel
Eva S. Wirström, Steven B. Charnley, Martin A. Cordiner +1
The general lack of molecular oxygen in molecular clouds is an outstanding problem in astrochemistry. Extensive searches with SWAS, Odin and Herschel have only produced two detecti…
Upper limits to interstellar NH+ and para-NH2- abundances. Herschel-HIFI observations towards Sgr B2 (M) and G10.6-0.4 (W31C)
C. M. Persson, M. Hajigholi, G. E. Hassel +12
The understanding of interstellar nitrogen chemistry has improved significantly with recent results from the Herschel Space Observatory. To set even better constraints, we report h…
Cold Water Vapor in the Barnard 5 Molecular Cloud
E. S. Wirström, S. B. Charnley, C. M. Persson +3
After more than 30 years of investigations, the nature of gas-grain interactions at low temperatures remains an unresolved issue in astrochemistry. Water ice is the dominant ice fo…