Abstract Details

Name: ROSE MARIA MATHEW
Affiliation: Mahatma Gandhi University, Kerala
Conference ID: ASI2020_89
Title : Probing the Physical Conditions of 6.7 GHz Methanol Maser Hosts
Authors and Co-Authors : Rose Maria Mathew and Jagadheep D Pandian
Abstract Type : Poster
Abstract Category : Stars, ISM and Galaxy
Abstract : The process of massive star formation is still poorly understood, in part due to the difficulty in identifying massive star-forming regions in early phases. One of the signposts of the early phases of massive star formation is the presence of the 5_1 – 6_0 A+ maser line of methanol at 6.7 GHz. We have carried out observations of thermal lines of methanol at 96 and 241 GHz using the MOPRA and APEX telescopes respectively towards a sample of 6.7 GHz methanol masers detected by the Arecibo Methanol Maser Galactic Plane Survey. The physical conditions in the 6.7 GHz methanol maser hosts can be studied by modelling these lines. Here, we present results of spectral line modelling of the sources under the assumption of local thermodynamic equilibrium. The results will be compared with theoretical models for excitation of 6.7 GHz methanol masers. The results are also expected to provide insight on the evolutionary state of the maser hosts in the context of massive star formation.