| Name: | Bhaskarjyoti Barman |
| Affiliation: | Assam University, Silchar |
| Conference ID: | ASI2025_573 |
| Title: | Insights from Molecular Clouds: Turbulence, Magnetic Field and other Physical Parameters |
| Authors: | Bhaskarjyoti Barman 1
Himadri Sekhar Das 1
Pritibhajan Byakti 2 |
| Authors Affiliation: | 1 Department of Physics, Assam University, Silchar 788011, India
2 Pandit Deendayal Upadhyaya Adarsha Mahavidyalaya, Eraligool, Karimganj 788723, India
|
| Mode of Presentation: | Oral |
| Abstract Category: | Stars, Interstellar Medium, and Astrochemistry in Milky Way |
| Abstract: | Molecular clouds represent the coldest and densest regions of the interstellar medium, serving as the primary sites for star formation. The intricate process of star formation is influenced by various factors, particularly turbulence and magnetic fields. These factors regulate the development and evolution of molecular clouds and their structures across both low and high-density regions. Our research demonstrates a significant link between turbulence (∆V, measured from FWHM of 12CO linewidth) and size (L) of the clouds with ∆V∝L^(0.30±0.04) for 22 isolated low-mass molecular clouds, with gravitational forces potentially driving turbulent motions, suggesting a state of near-equilibrium. We have also observed a dependence of turbulence on both mass and density at the clouds and the core of the respective clouds, where we consider FWHM of C18O linewidth as a core tracer. Our study also examines the influence of turbulence on the alignment of magnetic fields within these clouds. Our findings reveal that clouds exhibiting lower turbulence (∆V<3 km^(-1)) show a stronger alignment with the Galactic Plane, whereas those with higher turbulence (∆V>3 km^(-1)) display a greater offset. This highlights the dynamic interaction between turbulence and magnetic fields in shaping the evolution of molecular clouds, supported by our theoretical calculations. Understanding these connections is essential for uncovering the complex processes involved in the birth of stars and advancing our knowledge of stellar formation mechanisms. |
