Interstellar Complex Organic Molecules in SiO-traced Massive Outflows

The interstellar medium contains dust and gas, in which at high densities cold conditions molecules can proliferate. Interstellar Complex Organic Molecules (iCOMs) are C-bearing species that contain least six atoms. As they detected young stellar objects, iCOMs expected to inhabit the early stages of star formation evolution. In this study, we try determine present outflow component massive protostars. To do this, analyzed morphological extension blue- red-shifted emission a sample eleven protostars employing mapping observations one mm within ~1 GHz bandwidth for both IRAM-30m APEX telescopes. We modeled central pointing spectra our objects using XCLASS LTE radiative transfer code. presence several such as: CH3OH, 13CH3OH, CH3OCHO, C2H5C15N, c-C3H2)CH2. G034.41+0.24, G327.29-0.58, G328.81+0.63, G333.13-0.43, G340.97-1.02, G351.45+0.66 G351.77-0.54, lines show faint broad line profile. Due offset peak positions emission, covering from ~0.1 0.5 pc, these wings possibly related movements external compact core, as large-scale low-velocity outflows. have also established correlation between parent iCOM molecule CH3OH shock tracer SiO, reinforcing hypothesis environments provide boost via gas-phase reactions.