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astro-ph.GA2013★ 15 cited
Water Absorption from Gas Very Near the Massive Protostar AFGL 2136 IRS 1
Nick Indriolo, D. A. Neufeld, A. Seifahrt +1
We present ground-based observations of the nu_1 and nu_3 fundamental bands of H2O toward the massive protostar AFGL 2136 IRS 1, identifying absorption features due to 47 different…
astro-ph.GA2013★ 33 cited
Direct Determination of the HF/H2 Abundance Ratio in Interstellar Gas
Nick Indriolo, D. A. Neufeld, A. Seifahrt +1
We report the first detection of the v=1--0, R(0) ro-vibrational transition of HF at 2.499385 microns arising from interstellar gas. The line is seen in absorption toward 3 backgro…