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Circumstellar Interaction in Supernovae in Dense Environments-An Observational Perspective

机译:密集环境中超新星的界状相互作用 - 观察视角

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摘要

In a supernova explosion, the ejecta interacting with the surrounding circumstellar medium (CSM) give rise to variety of radiation. Since CSM is created from the mass loss from the progenitor, it carries footprints of the late time evolution of the star. This is one of the unique ways to get a handle on the nature of the progenitor system. Here, I will focus mainly on the supernovae (SNe) exploding in dense environments, a.k.a. Type IIn SNe. Radio and X-ray emission from this class of SNe have revealed important modifications in their radiation properties, due to the presence of high density CSM. Forward shock dominance in the X-ray emission, internal free-free absorption of the radio emission, episodic or non-steady mass loss rate, and asymmetry in the explosion seem to be common properties of this class of SNe.
机译:在超新星爆炸中,喷射物与周围的外围环境(CSM)相互作用,产生各种辐射。 由于CSM从祖先的质量损失产生,因此它带有恒星的后期演化的占地面积。 这是掌握祖先系统性质的独特方式之一。 在这里,我将主要集中在密集环境中的超新星(SNE)爆炸,A.K.a.型IIN SNE。 由于存在高密度CSM,这类SNE的无线电和X射线发射揭示了它们的辐射性能的重要修改。 在X射线排放,无线自由吸收的抗击震,无线发射,非稳定的质量损失率,爆炸中的不对称性似乎是这类SNE的常见特性。

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