Radiative transfer modeling of the observed line profiles in G31.41+0.31

نویسندگان

چکیده

An inverse P-Cygni profile of H13CO+ (1-0) in G31.41+0.31 was recently observed, which indicates the presence an infalling gas envelope. Also, outflow tracer, SiO, observed. Here, exclusive radiative transfer modelings have been implemented to generate synthetic spectra some key species (H13 CO+, HCN, NH3, CH3 CN, CH3OH, CH3SH, and CH3NCO) extract physical features infer excitation conditions surroundings where they The envelope is assumed be accreting a spherically symmetric system towards central hot core region. Our principal intention reproduce observed line profiles toward various parameters. LTE calculation with CASSIS non-LTE analysis RATRAN codes are considered for modeling purpose. best-fitted parameters derived, represents prevailing condition results suggest that could explain all mentioned above except SiO. additional component required confer SiO profile. Additionally, astrochemical model abundancests this source.

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ژورنال

عنوان ژورنال: Advances in Space Research

سال: 2022

ISSN: ['0273-1177', '1879-1948']

DOI: https://doi.org/10.1016/j.asr.2021.07.011