论文标题
重新审视扩展材料的冲击冷却排放
Shock Cooling Emission from Extended Material Revisited
论文作者
论文摘要
冲击突破之后，天体物理爆炸的发射在膨胀和冷却时的冲击加热材料的辐射（称为冲击冷却发射（SCE））主导。 SCE的亮度与发射材料的初始半径成正比，这使其测量可用于研究这些爆炸的祖细胞。最近的观察结果表明，某些瞬时事件特别突出，表明较大的半径可能是由于质量较低的材料所致。在此激励的情况下，我们提出了一个更新的SCE分析模型，可用于符合这些观察结果，并了解有关这些事件起源的更多信息。将该模型与数值模拟进行比较，以评估其有效性和局限性。我们还讨论了2016GKG SNE和2019DGE，这是两个具有较大早期光度峰的瞬态，以前归因于扩展材料的SCE。我们表明，他们的早期幂律进化和光度法与我们的模型相匹配，从而增强了对这种解释的支持。
Following shock breakout, the emission from an astrophysical explosion is dominated by the radiation of shock heated material as it expands and cools, known as shock cooling emission (SCE). The luminosity of SCE is proportional to the initial radius of the emitting material, which makes its measurement useful for investigating the progenitors of these explosions. Recent observations have shown some transient events have especially prominent SCE, indicating a large radius that is potentially due to low mass extended material. Motivated by this, we present an updated analytic model for SCE that can be utilized to fit these observations and learn more about the origin of these events. This model is compared with numerical simulations to assess its validity and limitations. We also discuss SNe 2016gkg and 2019dge, two transients with large early luminosity peaks that have previously been attributed to SCE of extended material. We show that their early power-law evolution and photometry are well matched by our model, strengthening support for this interpretation.
