论文标题

灭菌影响会产生生命的风险

Risks for Life on Proxima b from Sterilizing Impacts

论文作者

Siraj, Amir, Loeb, Abraham

论文摘要

我们认为,位于Proxima B和Proxima C之间的一条碎屑带可能会构成大型小行星撞击的速度,从而可以将Proxima B从生命中消毒。 Alma或JWST的未来观察可能会限制威胁生命的制度中的小行星带。我们将小行星带和外行星的系统中可居住行星的灭菌影响的速率计算概括。

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 Proxima b from life. Future observations by ALMA or JWST 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.

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