论文标题
SN活动的前SN活性可能解释了IIP Supernova型的特殊特性2009KF
The pre-SN activity as a possible explanation of the peculiar properties of Type IIP Supernova 2009kf
论文作者
论文摘要
SN 2009KF是Pan-Sarts 1调查发现的一种异常明亮的IIP超新星（SN IIP）。高原阶段的$ V $ -Band幅度为$ M_ {V} = -18.4 $ mag，它比典型的SNE IIP亮得多。我们建议，如果我们假设在SN爆炸前的进化的最后几年中，它可以自然解释其不寻常的特性。使用具有这种预先SN能量注入的祖细胞模型，我们可以将SN 2009KF的观察数据与$ e _ {\ Mathrm {exp}} = 2.8 \ times 10^{51} $ erg和$^{56} $ 0.25 m _ _ _} $ 0.25} $ 0.25 m _ _} $ o的合理爆炸能量拟合。具体而言，我们以$ 3.0 \ times 10^{39} $ erg s $^{ - 1} $的恒定速率向信封中注入能量，并在核心倒塌之前的进化的最后3.0年中。我们提出，一些异常明亮的SNE IIP可能是由于对信封的SN能量注入而产生的。
SN 2009kf is an exceptionally bright Type IIP Supernova (SN IIP) discovered by the Pan-STARRS 1 survey. The $V$-band magnitude at the plateau phase is $M_{V} = -18.4$ mag, which is much brighter than typical SNe IIP. We propose that its unusual properties can be naturally explained, if we assume that there was an super-Eddington energy injection into the envelope in the last few years of the evolution before the SN explosion. Using a progenitor model with such an pre-SN energy injection, we can fit the observational data of SN 2009kf with the reasonable explosion energy of $E_{\mathrm{exp}} = 2.8 \times 10^{51}$ erg and the $^{56}$Ni mass of $0.25 M_{\odot}$. Specifically, we injected the energy into the envelope at a constant rate of $3.0 \times 10^{39}$ erg s$^{-1}$ in the last 3.0 years of evolution before the core collapse. We propose that some of the unusually bright SNe IIP might result from the pre-SN energy injection to the envelope.
