CALIFA face-on spiral galaxies oxygen

We measured the gas abundance profiles in a sample of 122 face-on spiral galaxies observed by the CALIFA survey and included all spaxels whose line emission was consistent with...本研究针对CALIFA巡天（CALIFA Survey）观测的122个面向旋涡星系样本，测定了其气体丰度轮廓，并纳入了所有谱线辐射与……相符的空间像素（spaxel）。