Orion B9 dense cores H2D+ spectra

We aim to determine the ortho-H_2_D^+^ properties (e.g. column density and fractional abundance with respect to H_2_) in a sample of dense cores in the Orion B9 star-forming...本研究旨在测定猎户座B9（Orion B9）恒星形成区一批致密核样本中的正氢氘离子（ortho-H₂D⁺）特性，例如相对于氢分子（H₂）的柱密度与分数丰度等。