Accurate dust temperature determination in a z=7.13 galaxy
| العنوان: | Accurate dust temperature determination in a z=7.13 galaxy |
|---|---|
| المؤلفون: | Andrea Pallottini, Kirsten Kraiberg Knudsen, Yoichi Tamura, Andrea Ferrara, Darach Watson, T. Bakx, Hollis B. Akins, Laura Sommovigo, Masato Hagimoto, Stefano Carniani, Seiji Fujimoto |
| المساهمون: | C Bakx, Tom J L, Sommovigo, Laura, Carniani, Stefano, Ferrara, Andrea, B Akins, Holli, Fujimoto, Seiji, Hagimoto, Masato, K Knudsen, Kirsten, Pallottini, Andrea, Tamura, Yoichi, Watson, Darach |
| المصدر: | Bakx, T J L C, Sommovigo, L, Carniani, S, Ferrara, A, Akins, H B, Fujimoto, S, Hagimoto, M, Knudsen, K K, Pallottini, A, Tamura, Y & Watson, D 2021, ' Accurate dust temperature determination in a z=7.13 galaxy ', Monthly Notices of the Royal Astronomical Society, vol. 508, no. 1, pp. L58-L63 . https://doi.org/10.1093/mnrasl/slab104 |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | CONTINUUM EMISSION, formation [galaxies], DEEP FIELD, INFRARED-EMISSION, Extinction (astronomy), Continuum (design consultancy), FOS: Physical sciences, Astrophysics, 01 natural sciences, DARK, ALMA SPECTROSCOPIC SURVEY, Settore FIS/05 - Astronomia e Astrofisica, individual: (A1689-zD1) [galaxies], galaxies: high-redshift, 0103 physical sciences, galaxies [submillimetre], 158 MU-M, galaxies: formation, Black-body radiation, galaxie [submillimetre], 010303 astronomy & astrophysics, Reionization, galaxies: individual: (A1689-zD1), evolution [galaxies], Line (formation), Physics, EPOCH, 010308 nuclear & particles physics, extinction, Spectral density, Astronomy and Astrophysics, Astrophysics - Astrophysics of Galaxies, Galaxy, UV, Supernova, Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), LUMINOSITY, dust, dust, extinction, galaxies: evolution, submillimetre: galaxies, high-redshift [galaxies], INTERSTELLAR DUST |
| الوصف: | We report ALMA Band 9 continuum observations of the normal, dusty star-forming galaxy A1689-zD1 at $z = 7.13$, resulting in a $\sim$4.6$\sigma$ detection at $702$ GHz. For the first time these observations probe the far infrared (FIR) 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, $T_{\rm d}$, and mass, $M_{\rm d}$, of A1689-zD1 using both traditional modified blackbody spectral energy density fitting, and a new method that relies only on the [CII] $158\ \mathrm{\mu m}$ line and underlying continuum data. The two methods give $T_{\rm d} = (42^{+13}_{-7}, 40^{+13}_{-7}$) K, and $M_{\rm d} = (1.7^{+1.3}_{-0.7}, 2.0^{+1.8}_{-1.0})\,\times{}\,10^{7} \,M_{\odot}$. Band 9 observations improve the accuracy of the dust temperature (mass) estimate by $\sim 50$% (6 times). The derived temperatures confirm the reported increasing $T_{\rm d}$-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 $\sim$85% of its star formation rate is obscured, underline the non-negligible effects of dust in EoR galaxies. Comment: Published in MNRAS |
| وصف الملف: | application/pdf |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::691bd2d2316b1a987f60ac6afe73db40 https://curis.ku.dk/ws/files/285310887/slab104.pdf |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....691bd2d2316b1a987f60ac6afe73db40 |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |