论文标题
$Δr\ sim 9.5 $ mag超级耀斑的超级恒星，由$ \ text {svom/gwac} $ system检测到
A $ΔR\sim 9.5$ mag Super Flare of An Ultracool Star Detected by $\text{SVOM/GWAC}$ System
论文作者
论文摘要
在本文中，我们报告了181229a的超级恒星耀斑GWAC \的检测和随访，幅度为$Δr\ sim $ 9.5 mag在M9 Type Star上，由$ \ text {svom/gwac} $和专用的随访望远镜。估计的Bologement-Energy $ e_ {bol} $是$（5.56-9.25）\ times10^{34} $ ergs，它使该事件成为超级恒星上最强大的耀斑之一。磁强度为（3.6-4.7）kg。得益于15秒的节奏采样，在$ r $ band Light曲线中检测到了高峰时间附近的新组件，随后是Davenport等人给出的两个分量的耀斑模板。 （2014）。 $ 5340 \ pm40 $ k的有效温度是通过黑体形状拟合在耀斑期间较浅相位的光谱来测量的。耀斑的填充因子估计为$ \ sim $ 30 \％\％和19 \％，在首次检测后的54分钟内。对特定事件的检测具有较大的振幅，巨大的能量和新的组成部分表明，与快速后续观测合作的高节奏天空监测对于理解暴力磁性活动至关重要。
In this paper, we report the detection and follow-ups of a super stellar flare GWAC\,181229A with an amplitude of $ΔR\sim$9.5 mag on a M9 type star by $\text{SVOM/GWAC}$ and the dedicated follow-up telescopes. The estimated bolometric energy $E_{bol}$ is $(5.56-9.25)\times10^{34}$ ergs, which places the event to be one of the most powerful flares on ultracool stars. The magnetic strength is inferred to be (3.6-4.7) kG. Thanks to the sampling with a cadence of 15 seconds, a new component near the peak time with a very steep decay is detected in the $R$-band light curve, followed by the two-component flare template given by Davenport et al. (2014). An effective temperature of $5340\pm40$ K is measured by a blackbody shape fitting to the spectrum at the shallower phase during the flare. The filling factors of the flare are estimated to be $\sim$30\% and 19\% at the peak time and at 54 min after the first detection. The detection of the particular event with large amplitude, huge-emitted energy and a new component demonstrates that a high cadence sky monitoring cooperating with fast follow-up observations is very essential for understanding the violent magnetic activity.
