Long-term sp. obs. of SN IIb/Ib 2022crv

We present optical, near-infrared, and radio observations of supernova (SN) SN IIb 2022crv. We show that it retained a very thin H envelope and transitioned from an SN IIb to an...我们报道了IIb型超新星（supernova，SN）2022crv的光学、近红外及射电观测结果。研究表明该天体保留了极薄的氢包层，并从IIb型超新星向……过渡。