论文标题

超新星在月球上加速粉尘谷物的影响

Impacts of Dust Grains Accelerated by Supernovae on the Moon

论文作者

Siraj, Amir, Loeb, Abraham

论文摘要

有证据表明,过去来自附近超新星的喷射过去在地球上下雨了。 Supernovae可以在星际培养基中加速预先存在的灰尘晶粒,以达到$ \ sim 0.01 \ mathrm {\; c} $的速度。我们研究了超新星在月球上的尘土晶粒的生存和影响,发现超新星尘埃晶粒可以形成可检测的轨道,其宽度为$ \ sim 0.01-0.07 \ 0.07 \ mathrm {\; μm} $和$ \ sim 0.1-0.7 \ mathrm {\; MM} $ in Lunar Rocks。这些轨道可能会揭示附近超新星的时间,亮度和方向。

There is evidence that ejecta from nearby supernovae have rained down on Earth in the past. Supernovae can accelerate pre-existing dust grains in the interstellar medium to speeds of $\sim 0.01 \mathrm{\;c}$. We investigate the survival and impact of dust grains from supernovae on the moon, finding that supernova dust grains can form detectable tracks with widths of $\sim 0.01 - 0.07 \mathrm{\; μm}$ and depths of $\sim 0.1 - 0.7 \mathrm{\; mm}$ in lunar rocks. These tracks could potentially shed light on the timings, luminosities, and directions of nearby supernovae.

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