标题： 不规则星系IC 10中的电离气体及其电离源 显示英文标题

标题： Ionized gas and sources of its ionization in the Irr galaxy IC 10

摘要： IC 10 是最近的星暴不规则星系，以其异常高数量的沃尔夫-拉耶星（WR 星）而闻名。 我们报告了基于俄罗斯科学院特殊天体物理天文台 6 米望远镜上 MPFS 场谱仪和 SCORPIO 焦点减少器（以狭缝光谱模式运行）观测数据的星团和 WR 星电离的 HII 区发射光谱分析结果。 我们根据 Martin-Manjon 等人（2010 年）开发的 HII 区发射线光谱的新演化模型，确定了该星系剧烈恒星形成区域内电离星团的质量和年龄。 我们估计了使最亮的 HII 区 HL 111 的气体电离所需的恒星数量，并报告了 HII 区氧丰度的新测定结果。 显示英文摘要

摘要： IC 10 is the nearest starburst irregular galaxy remarkable for its anomalously high number of WR stars. We report the results of an analysis of the emission spectra of HII-regions ionized by star clusters and WR stars based on observations made with the 6-m telescope of the Special Astrophysical Observatory of the Russian Academy of Sciences using MPFS field spectrograph and SCORPIO focal reducer operating in the slit spectrograph mode. We determine the masses and ages of ionizing star clusters in the violent star-forming region of the galaxy in terms of the new evolutionary models of emission-line spectra of HII-regions developed by Martin-Manjon et al. (2010). We estimate the amount of stars needed to ionize the gas in the brightest HII-region HL 111 and report new determinations of oxygen abundance in HII regions.