论文标题
SN 2020TLF的室内外壳和Presupernova排放
Circumstellar shell and presupernova emission of SN 2020tlf
论文作者
论文摘要
我们解决了一个密闭的壳（CS）密集的壳和SN 2020TLF（IIP类型）的强大的Presupernova发射的现象。对\ ha \ line进行建模和偶色交互意味着$ \ sim $ 10 $^{15} $ cm的CS壳半径和$ \ sim0.2m2m _ {\ odot} $的质量在爆炸之前$ \ sim $ 6 $ 6 yr中丢失。爆炸后超新星的光谱和光度法并未显示出在其强大的光度期间被presupernova丢失的材料的明显特征。该材料大概居住在CS壳的内部区域。我们提出了一个闪光的结果的流体动力模型，其能量为$ 5 \ times10^{48} $ erg在对流核燃烧区中。该模型预测了Presupernova（$ \ sim0.1m _ {\ odot} $）的外层的弹射，并且在数百天内按照观察结果在数百天内的$ 10^{40} $ 10^{40} $ ERG S $^{ - 1} $的光度为$ 10^{40} $。我们提出了通过对流核燃烧区的湍流来产生声波的灯光机制，以解释与核心崩溃相关的紧凑型超新星CS壳的现象。
We address a phenomenon of a confined circumstellar (CS) dense shell and powerful presupernova emission of SN 2020tlf (type IIP). Modeling the \ha\ line and the circumstellar interaction implies the CS shell radius of $\sim$10$^{15}$ cm and the mass of $\sim0.2M_{\odot}$ lost during $\sim$6 yr prior to the explosion. Spectra and photometry of the supernova after the explosion do not show apparent signature of the material lost by the presupernova during its powerful luminosity. This material presumably resided in the inner zone of the CS shell. We present a hydrodynamic model of the outcome of a flash with the energy of $5\times10^{48}$ erg in the convective nuclear burning zone. The model predicts the ejection of outer layers of the presupernova ($\sim0.1M_{\odot}$) and the luminosity of $10^{40}$ erg s$^{-1}$ during several hundreds days in accord with observations. We propose the Lighthill mechanism of acoustic waves generation by the turbulence of the convective nuclear burning zone to account for the phenomenon of a compact CS shell of supernovae related to the core collapse.
