The MOSDEF-LRIS Survey: The Connection Between Massive Stars and Ionized Gas in Individual Galaxies at z ∼ 2 1,Monthly Notices of the Royal Astronomical Society

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The MOSDEF-LRIS Survey: The Connection Between Massive Stars and Ionized Gas in Individual Galaxies at z ∼ 2 1
Monthly Notices of the Royal Astronomical Society ( IF 4.7 ) Pub Date : 2020-09-26 , DOI: 10.1093/mnras/staa2941
Michael W Topping ₁ , Alice E Shapley ₁ , Naveen A Reddy ₂ , Ryan L Sanders ₃ , Alison L Coil ₄ , Mariska Kriek ₅ , Bahram Mobasher ₂ , Brian Siana ₂

Affiliation

We present constraints on the massive star and ionized gas properties for a sample of 62 star-forming galaxies at $z\sim2.3$. Using BPASS stellar population models, we fit the rest-UV spectra of galaxies in our sample to estimate age and stellar metallicity which, in turn, determine the ionizing spectrum. In addition to the median properties of well-defined subsets of our sample, we derive the ages and stellar metallicities for 30 high-SNR individual galaxies -- the largest sample of individual galaxies at high redshift with such measurements. Most galaxies in this high-SNR subsample have stellar metallicities of $0.001

中文翻译：

MOSDEF-LRIS 巡天：z ∼ 2 1 单个星系中大质量恒星和电离气体之间的联系

我们在 $z\sim2.3$ 处给出了 62 个恒星形成星系样本的大质量恒星和电离气体属性的限制。使用 BPASS 恒星群体模型，我们拟合样本中星系的其余紫外光谱，以估计年龄和恒星金属丰度，进而确定电离光谱。除了我们样本中明确定义的子集的中值特性之外，我们还推导出了 30 个高 SNR 单个星系的年龄和恒星金属丰度——这是具有此类测量的高红移单个星系的最大样本。这个高信噪比子样本中的大多数星系的恒星金属丰度为 0.001 美元

更新日期：2020-09-26

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