论文标题
如何解决Sesne的质量分配问题 - I.测试模型近似
How to solve the mass-discrepancy problem of SESNe -- I. Testing model approximations
论文作者
论文摘要
在这里，我们提出了一项系统的研究，对59个被剥离的超新星（SESNE）（包括IIB，IB，IC和过渡事件），以绘制出所谓的群众票房问题的可能原因。在这种情况下，我们假设从早期和晚期光曲线（LC）估计的弹出质量之间的张力是由于分析模型中通常使用的近似值。首先，我们研究了R波段光曲线确实是降压光曲线的良好近似值的假设。接下来，我们测试通常使用的假设，即上升时间至最大亮度等于可用于从早期LC中推导出射流质量的有效扩散时间尺度。此外，我们分析了伽马射线和正电子裂口的效果，这些作用在形成Sesne尾巴的形状方面起着重要作用，并且对于从较晚的LC数据中获得喷射质量至关重要。最后，我们考虑了喷射质量计算所需的不同速度定义的影响。
Here, we present a systematic study of 59 stripped-envelope supernovae (SESNe) (including Type IIb, Ib, Ic, and transitional events) to map a possible reason for the so-called mass-discrepancy problem. In this scenario, we assume the tension between the estimated ejected masses from early- and late-time light curves (LC) is due to approximations generally used in analytical models. First, we examine the assumption that the R-band light curve is indeed a good approximation of the bolometric light curve. Next, we test the generally used assumption that rise-time to maximum brightness is equal to the effective diffusion time-scale that can be used to derive the ejecta mass from the early LC. In addition, we analyze the effect of gamma-ray and positron-leakage, which play an important role in forming the shape of the tails of SESNe, and also can be crucial to gaining the ejecta masses from the late-time LC data. Finally, we consider the effect of the different definitions of velocity that are needed for the ejecta mass calculations.
