Breaks in disc galaxy abundance gradients

We examine the relation between breaks in the surface brightness profiles and radial abundance gradients within the optical radius in the discs of 134 spiral galaxies from the...我们针对来自[原文未完整提供后续样本来源信息]的134个旋涡星系的星系盘，考察了其光学半径（optical radius）范围内，面亮度轮廓（surface brightness profiles）断阶与径向丰度梯度（radial abundance gradients）之间的关联。