Erratum: A sub-Mercury-sized exoplanet
Erratum: A sub-Mercury-sized exoplanet
复制标题
勘误表：一颗亚水星大小的系外行星
DOI：
10.1038/nature12067
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发表时间：
2013
期刊：
影响因子：
64.8
通讯作者：
Barclay T
中科院分区：
文献类型：
--
作者：
Barclay T
自从发现第一颗系外行星以来，人们就知道其他行星系统可能看起来与我们自己的行星系统非常不同。直到最近，我们只能探测行星尺寸分布的上限，并且自去年以来，我们已经能够探测到与地球大小相同或稍小的行星。迄今为止，还没有发现比我们在太阳系中看到的行星更小的行星。在这里，我们报告了一颗比水星小得多的行星。这颗小行星是绕类太阳主星运行的三颗行星中最里面的一颗，我们将其命名为开普勒 37。由于开普勒 37b 的尺寸极小（类似于月球），并且表面受到高度辐射，因此开普勒 37b 行星可能是岩石行星，没有大气层或水，类似于水星。
Since the discovery of the first exoplanets,, it has been known that other planetary systems can look quite unlike our own. Until fairly recently, we have been able to probe only the upper range of the planet size distribution,, and, since last year, to detect planets that are the size of Earth or somewhat smaller. Hitherto, no planets have been found that are smaller than those we see in the Solar System. Here we report a planet significantly smaller than Mercury. This tiny planet is the innermost of three that orbit the Sun-like host star, which we have designated Kepler-37. Owing to its extremely small size, similar to that of the Moon, and highly irradiated surface, the planet, Kepler-37b, is probably rocky with no atmosphere or water, similar to Mercury.