Photon-dominated Chemistry in the Nucleus of M82: Widespread Hoc + Emission in the Inner 650 Pc Disk

@inproceedings{Fuente2004PhotondominatedCI,
  title={Photon-dominated Chemistry in the Nucleus of M82: Widespread Hoc + Emission in the Inner 650 Pc Disk},
  author={A. A. de la Fuente and S. Gar{\'c}ıa-Burillo and M. Gerin and D. Teyssier and Antonio Usero and Joseph R. Rizzo and Pablo de Vicente},
  year={2004}
}
The nucleus of M82 has been mapped in several 3mm and 1mm lines of CN, HCN, C 2 H, cC 3 H 2 , CH 3 C 2 H, HC 3 N and HOC + using the IRAM 30m telescope. These species have been purposely selected as good tracers of photon-dominated chemistry. We have measured [CN]/[HCN]∼5 in the inner 650 pc galaxy disk. Furthermore, we have detected the HOC + 1→0 line with an intensity similar to that of the H 13 CO + 1→0 line. This implies a [HCO + ]/[HOC + ] ratio of ∼ 40. These results corroborate the… CONTINUE READING