Carbonaceous dust grains seen in the first billion years of cosmic time
Author:
Witstok JorisORCID, Shivaei Irene, Smit RenskeORCID, Maiolino Roberto, Carniani StefanoORCID, Curtis-Lake EmmaORCID, Ferruit PierreORCID, Arribas SantiagoORCID, Bunker Andrew J.ORCID, Cameron Alex J.ORCID, Charlot StephaneORCID, Chevallard Jacopo, Curti MirkoORCID, de Graaff AnnaORCID, D’Eugenio Francesco, Giardino Giovanna, Looser Tobias J.ORCID, Rawle TimORCID, Rodríguez del Pino Bruno, Willott ChrisORCID, Alberts Stacey, Baker William M.ORCID, Boyett KristanORCID, Egami EiichiORCID, Eisenstein Daniel J.ORCID, Endsley Ryan, Hainline Kevin N., Ji Zhiyuan, Johnson Benjamin D.ORCID, Kumari NimishaORCID, Lyu JianweiORCID, Nelson EricaORCID, Perna MicheleORCID, Rieke MarciaORCID, Robertson Brant E.ORCID, Sandles LesterORCID, Saxena Aayush, Scholtz Jan, Sun Fengwu, Tacchella SandroORCID, Williams Christina C.ORCID, Willmer Christopher N. A.ORCID
Abstract
AbstractLarge dust reservoirs (up to approximately 108 M⊙) have been detected1–3 in galaxies out to redshift z ≃ 8, when the age of the Universe was only about 600 Myr. Generating substantial amounts of dust within such a short timescale has proven challenging for theories of dust formation4,5 and has prompted the revision of the modelling of potential sites of dust production6–8, such as the atmospheres of asymptotic giant branch stars in low-metallicity environments, supernova ejecta and the accelerated growth of grains in the interstellar medium. However, degeneracies between different evolutionary pathways remain when the total dust mass of galaxies is the only available observable. Here we report observations of the 2,175 Å dust attenuation feature, which is well known in the Milky Way and galaxies at z ≲ 3 (refs. 9–11), in the near-infrared spectra of galaxies up to z ≃ 7, corresponding to the first billion years of cosmic time. The relatively short timescale implied for the formation of carbonaceous grains giving rise to this feature12 suggests a rapid production process, possibly in Wolf–Rayet stars or supernova ejecta.
Publisher
Springer Science and Business Media LLC
Subject
Multidisciplinary
Reference86 articles.
1. Watson, D. et al. A dusty, normal galaxy in the epoch of reionization. Nature 519, 327–330 (2015). 2. Tamura, Y. et al. Detection of the far-infrared [O iii] and dust emission in a galaxy at redshift 8.312: early metal enrichment in the heart of the reionization era. Astrophys. J. 874, 27 (2019). 3. Witstok, J. et al. Dual constraints with ALMA: new [O iii] 88-μm and dust-continuum observations reveal the ISM conditions of luminous LBGs at z ∼ 7. Mon. Not. R. Astron. Soc. 515, 1751–1773 (2022). 4. Ferrara, A., Viti, S. & Ceccarelli, C. The problematic growth of dust in high-redshift galaxies. Mon. Not. R. Astron. Soc. 463, L112–L116 (2016). 5. Leśniewska, A. & Michałowski, M. J. Dust production scenarios in galaxies at z ∼ 6–8.3. Astron. Astrophys. 624, L13 (2019).
Cited by
21 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献
|
|