| |
 |
| Paper: |
Radio Emission from Supernovae as a Tracer of Mass-loss Activities of Massive Stars and Implications for SN 2023ixf |
| Volume: |
536, The Twelfth Pacific Rim Conference on Stellar Astrophysics |
| Page: |
65 |
| Authors: |
Matsuoka, T. |
| Abstract: |
Radio emission from core-collapse supernovae (SNe) is attributed to the synchrotron emission from electrons accelerated by the SN shock. The behavior of the SN shock sensitively reacts to the structure of the circumstellar medium (CSM), which can be tied to the mass-loss history of the progenitor. This indicates that radio SNe is a powerful tool for reconstructing the density structure of the CSM and even for inferring the activities of massive stars prior to the explosion. As we focus on the initial phase of radio SNe, particularly, it becomes possible to trace the very final behavior of massive stars. This has been highlighted by recent transient surveys and rapid follow-up observations, suggesting the possible increase in the mass-loss rate of SN progenitors immediately before the explosion, including the case of a record-setting nearby SN 2023ixf. We propose that combinations of optical and radio experiments have the potential to give further constraints on the final mass-loss activities of SN progenitors. In this talk, we introduce the basic framework and interpretations of radio SNe and discuss the implications for SN 2023ixf. |
|
|
|
|
|
