Spectroscopy of red giants in the LMC bar

We report metallicities and radial velocities derived from spectra at the near-infrared calcium triplet for 373 red giants in a 200arcmin^2^ area at the optical center of the...本研究报道了在面积为200角分平方（200arcmin²）的某天体光学中心区域内，基于近红外钙三重峰（near-infrared calcium triplet）波段的光谱推导得到的373颗红巨星的金属丰度（metallicities）与视向速度（radial velocities）