Oxygen abundances for giant HII regions in NGC 2403

This paper presents a spectroscopic investigation of 11 HII regions in the nearby galaxy NGC 2403. The HII regions are observed with a long-slit spectrograph mounted on the...本论文针对邻近星系NGC 2403内的11个电离氢区（HII regions）开展了光谱观测研究。研究团队采用搭载于……的长缝光谱仪（long-slit spectrograph）对上述电离氢区进行了观测。