@article{oai:nagoya.repo.nii.ac.jp:02002169,
 author = {Bakx, Tom J L C and Sommovigo, Laura and Carniani, Stefano and Ferrara, Andrea and Akins, Hollis B and Fujimoto, Seiji and Hagimoto, Masato and Knudsen, Kirsten K and Pallottini, Andrea and Tamura, Yoichi and Watson, Darach},
 issue = {1},
 journal = {Monthly Notices of the Royal Astronomical Society: Letters},
 month = {Nov},
 note = {We report ALMA Band 9 continuum observations of the normal, dusty star-forming galaxy A1689-zD1 at z = 7.13, resulting in a ∼4.6 σ detection at 702 GHz. For the first time, these observations probe the far-infrared spectrum shortward of the emission peak of a galaxy in the Epoch of Reionization (EoR). Together with ancillary data from earlier works, we derive the dust temperature, Td, and mass, Md, of A1689-zD1 using both traditional modified blackbody spectral energy density fitting, and a new method that relies only on the [C ii] 158 μm line and underlying continuum data. The two methods give Td=(42^+13−7,40^+13−7⁠) K, and Md=(1.7^+1.3−0.7,2.0^+1.8−1.0)×10^7M⊙⁠. Band 9 observations improve the accuracy of the dust temperature (mass) estimate by ∼50 per cent (6 times). The derived temperatures confirm the reported increasing Td-redshift trend between z = 0 and 8; the dust mass is consistent with a supernova origin. Although A1689-zD1 is a normal UV-selected galaxy, our results, implying that ∼85 per cent of its star-formation rate is obscured, underline the non-negligible effects of dust in EoR galaxies.},
 pages = {L58--L63},
 title = {Accurate dust temperature determination in a z = 7.13 galaxy},
 volume = {508},
 year = {2021}
}