Line-strength indices for 74 early-type galaxies

We present line-strength measurements for 74 early-type galaxies in the core of the Coma cluster reaching down to velocity dispersions, {sigma}, of 30km/s. The index-{sigma}...本研究针对后发星系团（Coma cluster）核心区域的74个早型星系（early-type galaxies），提供了谱线强度测量（line-strength measurements）结果，该测量覆盖的速度弥散σ低至30km/s。其指数-σ……