Red supergiant forensics: LST-1's Search for High-Energy Emission from SN 2024bch
Published: November 24, 2025
Duration: 14:48
In this episode, we dive into the latest findings on **Supernova (SN) 2024bch**, a spectacular stellar death event observed in the nearby galaxy NGC 3206 ($\sim 20$ Mpc). Scientists conducted a multiwavelength analysis, combining **Very High-Energy (VHE) gamma-ray observations** with optical photometry and spectroscopy.
**Key Findings:**
* **Classification:** SN 2024bch is classified as a potential **Type IIn-L supernova**. This type of core-collapse supernova (CCSNe) exhibits a fast linear decay in its light curve, similar to Type II-L SNe, but shows early-time spectral features indicating interaction with a dense circumstellar medium (CSM) (Type IIn-like).
...