论文标题

全球展望互动超新星的世界

A global look into the world of interacting supernovae

论文作者

Gangopadhyay, Anjasha, Misra, Kuntal, Kawabata, Koji, Dastidar, Raya, Singh, Mridweeka

论文摘要

相互作用的超新星(SNE)IIN和IBN显示出狭窄的发射线,并且一直是SNE物理学中的神秘且未解决的类型。我们对一组相互作用的SNE〜IIN和IBN的时间和光谱行为进行了全面分析。我们选择Sne〜2012AB,2020CUI,2020RC和2019UO作为这些SN子类型的代表成员,以探测爆炸的性质。我们的研究表明,Sne〜iin是异质的,明亮的描述了多阶段的时间进化,而SNE〜IBN则是同质的,比Sne〜iin比Sne〜iin相对较轻,并且寿命很短,但在样本中限制了牢固地限制同质性。光谱功能在H $α$中表现出巨大的多样性,他对Sne〜Iin和IBN的个人资料。代表性的SN〜IBN还显示了CIII和NIII的闪光电离特征。 H $α$的建模表明,SNE〜IIN通常具有与SN射流相互作用的不对称CSM,从而导致H $α$概况的多样性。

Interacting supernovae (SNe) IIn and Ibn show narrow emission lines and have always been a mysterious and unsolved genre in SNe physics. We present a comprehensive analysis of the temporal and spectroscopic behaviour of a group of interacting SNe~IIn and Ibn. We choose SNe~2012ab, 2020cui, 2020rc and 2019uo as representative members of these SN sub-types to probe the nature of explosion. Our study reveals that SNe~IIn are heterogeneous, bright depicting multi-staged temporal evolution while SNe~Ibn are moreover homogeneous, comparatively fainter than SNe~IIn and short lived, but limited in sample to firmly constrain the homogeneity. The spectroscopic features display a great diversity in H$α$ and He profiles for both SNe~IIn and Ibn. The representative SN~Ibn also show flash ionisation signatures of CIII and NIII. Modelling of H$α$ reveals that SNe~IIn have in general an asymmetric CSM which interacts with SN ejecta resulting in diversity in H$α$ profiles.

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