论文标题
迅速解决核爆发
A Swift Fix for Nuclear Outbursts
论文作者
论文摘要
2020年11月，Swift团队宣布对紫外线和光学望远镜校准进行更新，以纠正随着时间的流逝敏感性的丧失。在某些情况下，这种校正会影响三个近距离（UV）过滤器的观察结果，最高为0.3 mag。由于紫外线光度法对于表征潮汐破坏事件（TDE）和其他特殊的核爆发至关重要，因此，我们在2015年或更晚的时间内重新计算出针对TDES和其他具有迅速光度法的Swift Swift数据，以服务于社区。使用档案紫外线，光学和红外光度法，我们为每个宿主星系运行了宿主SED拟合。通过这些，我们计算了合成宿主的幅度和宿主 - 甘拉克斯性质。我们计算了每个瞬态和计算的黑体拟合的宿主提取的幅度。除核爆发外，我们还包括模棱两可的瞬态ATLAS18QQN（AT2018COW），该QUQN（AT2018COW）已被分类为中间质量黑洞上的潜在TDE。最后，使用更新的降压光曲线，我们恢复了\ citet {hinkle20a}的关系，与原始关系相比，\ citet {hinkle20a}的关系比较不发光的TDE的衰减更慢，而散布降低。
In November 2020, the Swift team announced an update to the UltraViolet and Optical Telescope calibration to correct for the loss of sensitivity over time. This correction affects observations in the three near ultraviolet (UV) filters, by up to 0.3 mag in some cases. As UV photometry is critical to characterizing tidal disruption events (TDEs) and other peculiar nuclear outbursts, we re-computed published Swift data for TDEs and other singular nuclear outbursts with Swift photometry in 2015 or later, as a service to the community. Using archival UV, optical, and infrared photometry we ran host SED fits for each host galaxy. From these, we computed synthetic host magnitudes and host-galaxy properties. We calculated host-subtracted magnitudes for each transient and computed blackbody fits. In addition to the nuclear outbursts, we include the ambiguous transient ATLAS18qqn (AT2018cow), which has been classifed as a potential TDE on an intermediate mass black hole. Finally, with updated bolometric light curves, we recover the relationship of \citet{hinkle20a}, where more luminous TDEs decay more slowly than less luminous TDEs, with decreased scatter as compared to the original relationship.
