Interstellar nitrile anions: Detection of C3N- and C5N- in TMC-1.

@article{Cernicharo2020InterstellarNA,
  title={Interstellar nitrile anions: Detection of C3N- and C5N- in TMC-1.},
  author={J. Cernicharo and N. Marcelino and J. Pardo and M. Ag{\'u}ndez and B. Tercero and P. de Vicente and C. Cabezas and C. Berm{\'u}dez},
  journal={Astronomy and astrophysics},
  year={2020},
  volume={641}
}
We report on the first detection of C3N- and C5N- towards the cold dark core TMC-1 in the Taurus region, using the Yebes 40 m telescope. The observed C3N/C3N- and C5N/C5N- abundance ratios are ~140 and ~2, respectively; that is similar to those found in the circumstellar envelope of the carbon-rich star IRC +10216. Although the formation mechanisms for the neutrals are different in interstellar (ion-neutral reactions) and circumstellar clouds (photodissociation and radical-neutral reactions… Expand
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