Tracing the G331.512-0.103 Hot Core with CH3CN and CH3OH

BRONFMAN L.; DURONEA N. U.; MENDOZA, E.

Santiago de Chile

Congreso; tar Formation from Cores to Clusters, Proceedings of the Conference held 6-9 March, 2017 at ESO, Santiago, Chile.; 2017

ESO

N- and O-bearing molecules trace different physical conditions in hotcores. We observed the G331.512+0.103 hot core with the APEX antenna tostudy the emission from CH3CN and CH3OH bulks (N. Duronea contribution).All the lines of CH3CN and CH3OH were identified covering the levelsEup=(150-500)K and Eup=(50-400)K, respectively. Radiative analysisindicate rotational temperatures around 100 and 180 K for CH3OH andCH3CN, respectively, as well as that [CH3OH]/[CH3CN] 20. Such hintsindicate a rich chemistry activated by thermal processes on the grainsurfaces of the G331.512+0.103 hot core. Note: Altogether with the N.Duronea´s contribution. This abstract is presented in collaboration withhis work mentioning observations with the APEX observatory.