Spectroscopic study of 65 nearby galaxies

With the aim of constraining the source of excitation and the origin of the ionized gas in early-type galaxies (ETGs), we analyzed intermediate resolution optical spectra of a...为约束早型星系（early-type galaxies，ETGs）的激发源与电离气体起源，我们对一组……的中等分辨率光学光谱开展了分析。