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According to Mashian & Loeb (2016), one possibility is that planet formation may have occurred around carbon-enhanced metal poor (CEMP) stars in the early universe. The paper focuses on CEMP-no stars as the most metal-poor CEMP stars mostly fall into this category. CEMP-no stars are thought to form from material polluted by supernova ejecta from ...


Our knowledge of planet formation processes comes from theoretical work and is supported by observations. I'm going to give it my take based on that. On the lower mass end of the planet distribution, starting from comets up to Super-Earths/Mini-Neptunes one needs a high number of rock-forming elements in order to build rocky worlds. Without high ...

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