Speaker
Description
Stripped envelope supernovae (SESNe) are pivotal high-energy astrophysical phenomena that illuminate the final stages of massive star evolution and the mechanisms driving stellar explosions. Utilizing the James Webb Space Telescope (JWST) across optical to mid-infrared (MIR) wavelengths, our research provides comprehensive observations of SESNe, enabling a deeper understanding of their ejecta and mass loss processes. JWST’s multi-wavelength capabilities allow us to penetrate dust-obscured regions and capture a broad spectrum of emission, from optical signatures to MIR dust emission, offering a complete picture of these explosive events. By analyzing the dust produced in supernova remnants, we infer the mass loss history of progenitor stars prior to explosion. Concurrently, studying molecular signatures across different wavelengths enables us to estimate the ejecta mass and gain insights into the core structures of these massive stars. Additionally, some SESNe, particularly Type Ic, are associated with gamma-ray bursts (GRBs), linking these stellar explosions to high-energy transient phenomena. Understanding the mass loss and ejecta properties of SNe Ic through JWST observations is essential for elucidating the conditions that lead to GRB formation. These measurements are crucial for refining stellar evolution models and understanding the energetic processes that underpin SESNe. Our preliminary findings indicate that JWST’s high-resolution, multi-wavelength data effectively characterize both dust formation and ejecta properties in SESNe, offering new perspectives on their role in high-energy astrophysical environments and the lifecycle of massive stars.
