Irr星系IC 10中的电离气体：发射光谱和电离源
Ionized Gas in the Irr Galaxy IC 10: The Emission Spectrum and Ionization Sources
摘要：
本文介绍了在6米SAO望远镜上用全景多光瞳光纤光谱仪（MPFS）对Irr星系IC 10的观测结果。基于这些观测结果和我们以前进行的长缝光谱学，我们研究了在激烈的恒星形成区域的电离气体发射光谱和改进的气体金属丰度估计。我们发现，“诊断图”从我们的观察构建最符合新的改进电离模型由马丁Manjon等人。使用这些模型，我们已经确定了电子密度和气体电离参数和电离团簇的特性，年龄和质量，从光谱的调查HII地区。星系团的年龄和质量分别在2.5 - 5百万年和（0.2 - 1）*10^5 M（太阳）的范围内。
英文摘要：
We present the results of observations of the Irr galaxy IC 10 at the 6-m SAO telescope with the panoramic Multi-Pupil Fiber Spectrograph (MPFS). Based on the results of these observations and our long-slit spectroscopy performed previously, we have investigated the ionized-gas emission spectrum in the region of intense star formation and refined the gas metallicity estimates. We show that the "diagnostic diagrams" constructed from our observations agree best with the new improved ionization models by Martin-Manjon et al. Using these models, we have determined the electron density and gas ionization parameter and ionizing-cluster characteristics, the age and mass, from the spectra of the investigated HII regions. The cluster age and mass are shown to be within the ranges 2.5 - 5 Myr and (0.2 - 1)*10^5 M(sun), respectively.
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