2013年9月11日的一次大型月球撞击爆炸
A large lunar impact blast on September 11th 2013
摘要：
2013年9月11日20时07分28.68秒$\pm$ 0.01秒UTC，在我们的月球撞击闪光监测项目框架内运行的两台望远镜记录到了一个巨大的流星体撞击月球产生的异常闪光，该流星体位于月面坐标17.2 $\pm$ 0.2 $^{\circ}$ S，20.5 $\pm$ 0.2 $^{\circ}$ W。这一闪光的峰值亮度达到2.9 $\pm$ 0.2兆伏，并持续了8秒多。假设发光效率为0.002，估计流星体撞击期间释放的能量为15.6 $\pm$ 2.5吨TNT。这一事件是迄今为止在月球上记录的最长和最亮的确认撞击闪光，在这里进行了分析。撞击物的可能来源进行了讨论。还考虑了对地球的撞击通量。
英文摘要：
On 2013 September 11 at 20h07m28.68 $\pm$ 0.01 s UTC, two telescopes operated in the framework of our lunar impact flashes monitoring project recorded an extraordinary flash produced by the impact on the Moon of a large meteoroid at selenographic coordinates 17.2 $\pm$ 0.2 $^{\circ}$ S, 20.5 $\pm$ 0.2 $^{\circ}$ W. The peak brightness of this flash reached 2.9 $\pm$ 0.2 mag in V and it lasted over 8 seconds. The estimated energy released during the impact of the meteoroid was 15.6 $\pm$ 2.5 tons of TNT under the assumption of a luminous efficiency of 0.002. This event, which is the longest and brightest confirmed impact flash recorded on the Moon thus far, is analyzed here. The likely origin of the impactor is discussed. Considerations in relation to the impact flux on Earth are also made.
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