论文标题
检查潮汐破坏事件的峰值luminitusy/降低率关系
Examining a Peak-Luminosity/Decline-Rate Relationship for Tidal Disruption Events
论文作者
论文摘要
我们比较了21种观察到的潮汐破坏事件（TDES）的紫外线/光学黑体的光度，半径和温度演变（TDE），其中8个是由All Sky Superomated Supermated Survey发现的。我们发现，黑体半径通常在峰值之前增加，并且晚期慢慢下降。黑体温度演化通常是平坦的，其中一些物体显示出小规模的变化。降压紫外线/光亮度通常在较晚的时间顺利演变并扁平。最后，我们发现峰值光度与TDE的下降速率之间存在明显的相关性。将峰值发光度与40天内的峰值下降进行比较时，这种关系是最牢固的。线性拟合产生$ \ log_ {10}（l_ {peak}）=（44.1^{ + 0.1} _ { - 0.1}） +（1.6^{ + 0.4} _ { - 0.2}）（Δl_{40} \ log_ {10}（l_ {40} / l_ {peak}）$。
We compare the luminosity, radius, and temperature evolution of the UV/optical blackbodies for 21 well-observed tidal disruption events (TDEs), 8 of which were discovered by the All-Sky Automated Survey for Supernovae. We find that the blackbody radii generally increase prior to peak and slowly decline at late times. The blackbody temperature evolution is generally flat, with a few objects showing small-scale variations. The bolometric UV/optical luminosities generally evolve smoothly and flatten out at late times. Finally, we find an apparent correlation between the peak luminosity and the decline rate of TDEs. This relationship is strongest when comparing the peak luminosity to its decline over 40 days. A linear fit yields $\log_{10}( L_{peak}) = (44.1^{+0.1}_{-0.1}) + (1.6^{+0.4}_{-0.2})(ΔL_{40} + 0.5)$ in cgs, where $ΔL_{40} = \log_{10}(L_{40} / L_{peak})$.
