| Name: | Naval Kishor Bhadari |
| Affiliation: | Physical Research Laboratory, Ahmedabad |
| Conference ID : | ASI2024_702 |
| Title : | Dynamics of dense gas structures in the proximity of a massive young stellar object W42-MME |
| Authors : | Naval Kishor Bhadari1,2, Lokesh Kumar Dewangan1, Arup Kumar Maity1,2 |
| Authors Affiliation: | 1 Naval Kishor Bhadari, Lokesh Kumar Dewangan, Arup Kumar Maity Affiliation (Physical Research Laboratory, Navrangpura, Ahmedabad 380009, India)
2 Naval Kishor Bhadari, Arup Kumar Maity Affiliation (Indian Institute of Technology Gandhinagar Palaj, Gandhinagar 382355, India) |
| Mode of Presentation: | Poster |
| Abstract Category : | Stars, Interstellar Medium, and Astrochemistry in Milky Way |
| Abstract : | Recent observations suggest that massive star formation (MSF) involves the simultaneous onset of various physical processes, primarily driven by turbulence and gravity across scales of molecular clouds (>10 pc) down to cores (≤0.1 pc). This points to a multi-scale accretion process in MSF. Investigating the role of gravity and turbulence in the early stages of star formation, including massive stars, is one of the hot topics in star formation research. In this context, we analysed the fragmentation and dynamics of dense gas structures down to ~2000 au scale in the immediate surroundings of a massive young stellar object (MYSO) W42-MME, using the high-resolution (0″.31 × 0″.25) Atacama Large Millimetre/submillimetre Array (ALMA) dust continuum and molecular line data. We performed a dendrogram analysis of H13CO+(4-3) line data to study multi-scale structures and their spatio-kinematic properties. Our results reveal 19 dense structures, including 12 leaves and 7 branches. These structures exhibit transonic-supersonic gas motions (1 |
