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Risks for Life on Proxima b from Sterilizing Impacts
The Planetary Science Journal Pub Date : 2020-12-30 , DOI: 10.3847/psj/abc692
Amir Siraj , Abraham Loeb

We consider the implications that a debris belt located between Proxima b and Proxima c would pose for the rate of large asteroid impacts that could sterilize life from Proxima b. Future observations by the Atacama Large Millimeter/submillimeter Array or the James Webb Space Telescope could constrain the existence of an asteroid belt in the life-threatening regime. We generalize our rate calculation of sterilizing impacts for habitable planets in systems with an asteroid belt and an outer planet.



中文翻译:

灭菌影响对Proxima b的生命危险

我们认为位于Proxima b和Proxima c之间的碎片带可能会对小行星撞击的速率产生影响,这些撞击可能会使Proxima b的生命死亡。阿塔卡马大型毫米/亚毫米阵列或詹姆斯·韦伯太空望远镜的未来观测结果可能会在威胁生命的状态下限制小行星带的存在。我们对小行星带和外行星系统中宜居行星的杀菌影响率计算进行了概括。

更新日期:2020-12-30
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