标题： 通过超新星射电特性限制红超巨星质量损失模型 显示英文标题

标题： Constraining red supergiant mass-loss prescriptions through supernova radio properties

摘要： 超新星的射电特性强烈依赖于其周围环境，并且它们是研究超新星前体质量损失的重要探针。最近，已经收集了核心坍缩超新星在射电波段的观测数据，并估计了8.4 GHz下核心坍缩超新星的上升时间和峰值光度分布。在本文中，我们利用II型超新星在射电波段的上升时间和峰值光度分布来约束红超巨星的质量损失模型。我们采用de Jager和van Loon的红超巨星质量损失率，基于这些模型计算上升时间和峰值光度分布，并将结果与观测分布进行比较。我们发现，de Jager的质量损失率能够很好地解释II型超新星广泛的射电上升时间和峰值光度分布，而van Loon的质量损失率则预测了相对狭窄的上升时间和峰值光度范围。我们得出结论，红超巨星的质量损失模型应像de Jager质量损失率那样对光度有较强的依赖性，以重现II型超新星在射电波段观测到的上升时间和峰值光度的广泛分布。 显示英文摘要

摘要： Supernova properties in radio strongly depend on their circumstellar environment and they are an important probe to investigate the mass loss of supernova progenitors. Recently, core-collapse supernova observations in radio have been assembled and the rise time and peak luminosity distribution of core-collapse supernovae at 8.4 GHz has been estimated. In this paper, we constrain the mass-loss prescriptions for red supergiants by using the rise time and peak luminosity distribution of Type II supernovae in radio. We take the de Jager and van Loon mass-loss rates for red supergiants, calculate the rise time and peak luminosity distribution based on them, and compare the results with the observed distribution. We found that the de Jager mass-loss rate explains the widely spread radio rise time and peak luminosity distribution of Type II supernovae well, while the van Loon mass-loss rate predicts a relatively narrow range for the rise time and peak luminosity. We conclude that the mass-loss prescriptions of red supergiants should have strong dependence on the luminosity as in the de Jager mass-loss rate to reproduce the widely spread distribution of the rise time and peak luminosity in radio observed in Type II supernovae.