Deuterium Chemodynamics of Massive Pre-Stellar Cores

Chia-Jung Hsu, Jonathan C. Tan, Matthew D. Goodson +3

High levels of deuterium fractionation of ${\mathrm{N}}_2{\mathrm{H}}^{+}$ (i.e., ${\mathrm{D}}_{\mathrm{frac}}^{{\mathrm{N}}_2{\mathrm{H}}^{+}}\gtrsim 0.1$) are often observed in pre-stellar cores (PSCs) and detection of ${\mathrm{N}}_2{\mathrm{D}}^{+}$ is a…