Wolf 327b RV and spectral line activity indices
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Planets with orbital periods shorter than 1 day are rare and have formation histories that are not completely understood. Small (R_p < 2 R_earth) ultra-short-period (USP)...
轨道周期短于1天的行星较为罕见，其形成历史尚未完全明晰。小尺寸（行星半径R_p < 2倍地球半径R_earth）的超短周期（ultra-short-period，USP）行星……
