SN 2022acko: Low-Luminosity Supernova with Early Circumstellar Interaction
Analysis
This paper presents observations of SN 2022acko, a low-luminosity Type II supernova. The key finding is the detection of early circumstellar interaction (CSI) evidenced by specific spectral features. This suggests that CSI might be more common in SNe II than previously thought, potentially impacting our understanding of progenitor stars and their mass-loss histories.
Key Takeaways
- •SN 2022acko is a low-luminosity Type II supernova.
- •Early-phase circumstellar interaction (CSI) is detected.
- •The findings suggest CSI might be more common in SNe II than previously thought.
- •The progenitor star is estimated to have a mass of ~9-10 solar masses.
Reference
“The early ``ledge'' feature observed in SN 2022acko have also been observed in other SNe II, suggesting that early-phase circumstellar interaction (CSI) is more common than previously thought.”