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The First Robust Constraints on the Relationship between Dust-to-gas Ratio and Metallicity in Luminous Star-forming Galaxies at High Redshift
The Astrophysical Journal Letters ( IF 8.8 ) Pub Date : 2020-10-29 , DOI: 10.3847/2041-8213/abc006
Alice E. Shapley 1 , Fergus Cullen 2 , James S. Dunlop 2 , Ross J. McLure 2 , Mariska Kriek 3 , Naveen A. Reddy 4 , Ryan L. Sanders 5
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We present rest-optical spectroscopic properties of a sample of four galaxies in the Atacama Large Millimeter/submillimeter Array Hubble Ultra Deep Field (ALMA HUDF). These galaxies span the redshift range ##IMG## [http://ej.iop.org/images/2041-8205/903/1/L16/apjlabc006ieqn1.gif] {$1.41\leqslant z\leqslant 2.54$} and the stellar mass range ##IMG## [http://ej.iop.org/images/2041-8205/903/1/L16/apjlabc006ieqn2.gif] {$10.36\leqslant \mathrm{log}({M}_{* }/{M}_{\odot })\leqslant 10.91$} . They have existing far-infrared and radio measurements of dust-continuum and molecular gas emission from which bolometric star formation rates (SFRs), dust masses, and molecular gas masses have been estimated. We use new H - and K -band near-infrared spectra from the Keck/Multi-object Spectrometer for Infrared Exploration (MOSFIRE) to estimate SFRs from dust-corrected H α emission (SFR(H α )) and gas-phase oxygen abundances from the r...

中文翻译:

高红移下恒星形成星系中尘埃比与金属性之间关系的第一个鲁棒约束

我们介绍了阿塔卡马大毫米/亚毫米阵列哈勃超深场(ALMA HUDF)中的四个星系样本的剩余光学光谱特性。这些星系跨越红移范围## IMG ## [http://ej.iop.org/images/2041-8205/903/1/L16/apjlabc006ieqn1.gif] {$ 1.41 \ leqslant z \ leqslant 2.54 $}和恒星质量范围## IMG ## [http://ej.iop.org/images/2041-8205/903/1/L16/apjlabc006ieqn2.gif] {$ 10.36 \ leqslant \ mathrm {log}({M} _ { *} / {M} _ {\ odot})\ leqslant 10.91 $}。他们已经对尘埃连续体和分子气体发射进行了远红外和无线电测量,并据此估算了辐射热星形成率(SFR),尘埃质量和分子气体质量。
更新日期:2020-10-30
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