Discovery of interstellar CF

  title={Discovery of interstellar CF},
  author={David A. Neufeld and Peter Schilke and Karl M. Menten and Mark G. Wolfire and John H. Black and F. Schuller and Holger S. P. Muller and Sven Thorwirth and Rolf Gusten and Sabine D. Philipp},
  journal={Astronomy and Astrophysics},
We discuss the first astronomical detection of the CF + (fluoromethylidynium) ion, obtained by observations of the J = 1− 0 (102.6 GHz), J = 2− 1 (205.2 GHz) and J = 3− 2 (307.7 GHz) rotational transitions toward the Orion Bar region. Our search for CF + - carried out using the IRAM 30m and APEX 12m telescopes - was motivated by recent theoretical models that predict CF + abundances of few× 10 −10 in UV-irradiated molecular regions where C + is present. The CF + ion is produced by exothermic… 

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