Detection of Interstellar CH3.

  title={Detection of Interstellar CH3.},
  author={Feuchtgruber and Helmich and EF vanDishoeck and Wright},
  journal={The Astrophysical journal},
  volume={535 2},
Observations with the Short Wavelength Spectrometer on board the Infrared Space Observatory have led to the first detection of the methyl radical CH(3) in the interstellar medium. The nu(2) Q-branch at 16.5 µm and the R(0) line at 16.0 µm have been unambiguously detected toward the Galactic center Sagittarius A*. The analysis of the measured bands gives a column density of &parl0;8.0+/-2.4&parr0;x1014 cm(-2) and an excitation temperature of 17+/-2 K. Gaseous CO at a similarly low excitation… Expand
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