BL Lac S5 0716+714的光学光变曲线中~ 15分钟的准周期振荡
Quasi-Periodic Oscillations of ~ 15 minutes in the Optical Light Curve of the BL Lac S5 0716+714
摘要：
在2008年12月27日的三个小时内，我们以10秒的非常快的节奏获得了耀变体S5 0716+714的光学（R波段）观测。使用几种不同的技术，我们发现在> 3 sigma置信水平下，该数据的第一部分中存在约15分钟准周期的波动。这是在任何耀变体中观测到的最快的QPO。虽然这些数据不足以强烈约束这种波动的模型，但当源不处于非常低的状态时，存在如此短的时间尺度似乎有利于耀变体相对论性喷流中激波后面的湍流作用。
英文摘要：
Over the course of three hours on 27 December 2008 we obtained optical (R-band) observations of the blazar S5 0716+714 at a very fast cadence of 10 s. Using several different techniques we find fluctuations with an approximately 15-minute quasi-period to be present in the first portion of that data at a > 3 sigma confidence level. This is the fastest QPO that has been claimed to be observed in any blazar at any wavelength. While this data is insufficient to strongly constrain models for such fluctuations, the presence of such a short timescale when the source is not in a very low state seems to favor the action of turbulence behind a shock in the blazar's relativistic jet.
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