潮汐加热
- 网络tidal heating
潮汐加热-
他们的想法基于一种称为“潮汐加热”的现象。
Their idea relies on a phenomenon called tidal heating .
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接近它们母恒星的小行星会有发生潮汐加热的风险：即，这些小行星上白天的长度会与它们的轨道周期相对应，因此，它们的一半会永远炎热，而另一半会永远寒冷。
Small planets close to their parental stars risk becoming tidally locked : that is , the lengths of their days come to match their orbital periods , and they thus have one permanently hot hemisphere and one that is permanently cold .