E+A galaxies are post-starburst galaxies that have undergone a recent, complete quenching of star formation. We have analyzed a color-constrained sample of galaxies from the Sloan Digital Sky Survey within a 77.′5 radius of the center of the Leo cluster of galaxies (A1367; J2000 11:44:36.5 + 19:45:32) within 3000 km s⁻¹ of Leo’s redshift of z = 0.022 to identify and survey the E+A galaxy candidates in the cluster. Within this sample, we classified 52 of these galaxies as E+A galaxy candidates based on their spectral shapes, u–r color, lack of Hα emission, and higher-order hydrogen Balmer absorption. We further subdivide this group into “blue” and “green” E+A candidates. Our results show that the E+A galaxy candidates are distributed across the northwest and southeast subclusters of Leo, possibly as a result of merging between the two subclusters.

E+A 星系是星暴后的星系，最近经历了恒星形成的完全猝灭。我们分析了来自 Sloan 数字巡天的受颜色限制的星系样本，该样本位于距狮子座星系团中心 77.'5 半径范围内（A1367；J2000 11:44:36.5 + 19:45:32）在 3000 以内狮子座红移z = 0.022 的km s ^-1 以识别和调查星团中的 E+A 星系候选者。在这个样本中，我们根据光谱形状、u - r颜色、缺乏 H α将其中 52 个星系分类为 E+A 候选星系发射和高阶氢 Balmer 吸收。我们进一步将该组细分为“蓝色”和“绿色”E+A 候选人。我们的研究结果表明，E+A 候选星系分布在狮子座的西北和东南子集群中，可能是两个子集群合并的结果。