[{"main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2512.14486","open_access":"1"}],"quality_controlled":"1","OA_type":"diamond","ddc":["520"],"month":"07","dataavailabilitystatement":"This paper makes use of the following ALMA data:\r\nADS/JAO.ALMA#2024.1.00440.S,\r\nADS/JAO.ALMA#2024.1.01197.S\r\nALMA is a partnership of ESO (representing its member states), NSF (USA) and NINS (Japan), together with\r\nNRC (Canada), MOST and ASIAA (Taiwan), and KASI\r\n(Republic of Korea), in cooperation with the Republic\r\nof Chile. The Joint ALMA Observatory is operated by\r\nESO, AUI/NRAO and NAOJ.","volume":9,"external_id":{"arxiv":["2512.14486"]},"language":[{"iso":"eng"}],"intvolume":"         9","date_published":"2026-07-21T00:00:00Z","type":"journal_article","oa_version":"Published Version","OA_place":"publisher","department":[{"_id":"JoMa"}],"has_accepted_license":"1","status":"public","doi":"10.33232/001c.165333","scopus_import":"1","tmp":{"short":"CC BY (4.0)","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"acknowledgement":"We thank the referee for their valuable and constructive comments that improved this work. We also thank Javier Alvarez-M´arquez for useful discussions ´\r\nabout the MIRI observations of UHZ1 and UNCOVER37126. HSBA gratefully acknowledges support from\r\nAcademia Sinica through grant AS-PD-1141-M01-2. MA\r\nis supported by FONDECYT grant number 1252054,\r\nand gratefully acknowledges support from ANID Basal\r\nProject FB210003 and ANID MILENIO NCN2024 112.\r\nAKI acknowledges support from KAKENHI Grant No.\r\n23H00131. NW was supported by the GACR EXPRO\r\ngrant No. 21-13491X.\r\nThis paper makes use of the following ALMA data:\r\nADS/JAO.ALMA#2024.1.00440.S,\r\nADS/JAO.ALMA#2024.1.01197.S\r\nALMA is a partnership of ESO (representing its member states), NSF (USA) and NINS (Japan), together with\r\nNRC (Canada), MOST and ASIAA (Taiwan), and KASI\r\n(Republic of Korea), in cooperation with the Republic\r\nof Chile. The Joint ALMA Observatory is operated by\r\nESO, AUI/NRAO and NAOJ.","fulldoi":"https://doi.org/10.33232/001c.165333","publisher":"Maynooth Academic Publishing","date_created":"2026-09-13T22:01:57Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","article_type":"original","oa":1,"supplementarymaterial":"yes","researchdata_availability":"no","citation":{"short":"H.S.B. Algera, J.R. Weaver, T.J.L.C. Bakx, M. Aravena, R.J. Bouwens, K. Cescon, C.C. Chen, E. Da Cunha, P. Dayal, A. Faisst, A. Ferrara, S. Fujimoto, T. Hashimoto, K. Heintz, R. Herrera-Camus, J. Hodge, H. Inami, A.K. Inoue, J.J. Matthee, R. Meyer, S. Mizukoshi, C. Mondal, T. Nanayakkara, P.A. Oesch, A. Pallottini, H. Röttgering, L.E. Rowland, S. Schouws, R. Smit, L. Sommovigo, D.P. Stark, Y. Sugahara, L. Vallini, B. Vijarnwannaluk, P. Van Der Werf, N. Werner, J. Witstok, M. Xiao, The Open Journal of Astrophysics 9 (2026).","chicago":"Algera, Hiddo S.B., John R. Weaver, Tom J.L.C. Bakx, Manuel Aravena, Rychard J. Bouwens, Karin Cescon, Chian Chou Chen, et al. “A First Systematic Study of [OIII] 88μm at Z&#62;8: Two Luminous Oxygen Lines and a Powerful Ionized Outflow in the First 600 Million Years.” <i>The Open Journal of Astrophysics</i>. Maynooth Academic Publishing, 2026. <a href=\"https://doi.org/10.33232/001c.165333\">https://doi.org/10.33232/001c.165333</a>.","ista":"Algera HSB, Weaver JR, Bakx TJLC, Aravena M, Bouwens RJ, Cescon K, Chen CC, Da Cunha E, Dayal P, Faisst A, Ferrara A, Fujimoto S, Hashimoto T, Heintz K, Herrera-Camus R, Hodge J, Inami H, Inoue AK, Matthee JJ, Meyer R, Mizukoshi S, Mondal C, Nanayakkara T, Oesch PA, Pallottini A, Röttgering H, Rowland LE, Schouws S, Smit R, Sommovigo L, Stark DP, Sugahara Y, Vallini L, Vijarnwannaluk B, Van Der Werf P, Werner N, Witstok J, Xiao M. 2026. A first systematic study of [OIII] 88μm at z&#62;8: two luminous oxygen lines and a powerful ionized outflow in the first 600 million years. The Open Journal of Astrophysics. 9.","ama":"Algera HSB, Weaver JR, Bakx TJLC, et al. A first systematic study of [OIII] 88μm at z&#62;8: two luminous oxygen lines and a powerful ionized outflow in the first 600 million years. <i>The Open Journal of Astrophysics</i>. 2026;9. doi:<a href=\"https://doi.org/10.33232/001c.165333\">10.33232/001c.165333</a>","mla":"Algera, Hiddo S. B., et al. “A First Systematic Study of [OIII] 88μm at Z&#62;8: Two Luminous Oxygen Lines and a Powerful Ionized Outflow in the First 600 Million Years.” <i>The Open Journal of Astrophysics</i>, vol. 9, Maynooth Academic Publishing, 2026, doi:<a href=\"https://doi.org/10.33232/001c.165333\">10.33232/001c.165333</a>.","apa":"Algera, H. S. B., Weaver, J. R., Bakx, T. J. L. C., Aravena, M., Bouwens, R. J., Cescon, K., … Xiao, M. (2026). A first systematic study of [OIII] 88μm at z&#62;8: two luminous oxygen lines and a powerful ionized outflow in the first 600 million years. <i>The Open Journal of Astrophysics</i>. Maynooth Academic Publishing. <a href=\"https://doi.org/10.33232/001c.165333\">https://doi.org/10.33232/001c.165333</a>","ieee":"H. S. B. Algera <i>et al.</i>, “A first systematic study of [OIII] 88μm at z&#62;8: two luminous oxygen lines and a powerful ionized outflow in the first 600 million years,” <i>The Open Journal of Astrophysics</i>, vol. 9. Maynooth Academic Publishing, 2026."},"_id":"22928","year":"2026","publication_identifier":{"eissn":["2565-6120"]},"author":[{"full_name":"Algera, Hiddo S.B.","last_name":"Algera","first_name":"Hiddo S.B."},{"last_name":"Weaver","full_name":"Weaver, John R.","first_name":"John R."},{"first_name":"Tom J.L.C.","full_name":"Bakx, Tom J.L.C.","last_name":"Bakx"},{"full_name":"Aravena, Manuel","last_name":"Aravena","first_name":"Manuel"},{"last_name":"Bouwens","full_name":"Bouwens, Rychard J.","first_name":"Rychard J."},{"first_name":"Karin","full_name":"Cescon, Karin","last_name":"Cescon"},{"first_name":"Chian Chou","last_name":"Chen","full_name":"Chen, Chian Chou"},{"first_name":"Elisabete","last_name":"Da Cunha","full_name":"Da Cunha, Elisabete"},{"full_name":"Dayal, Pratika","last_name":"Dayal","first_name":"Pratika"},{"last_name":"Faisst","full_name":"Faisst, Andreas","first_name":"Andreas"},{"full_name":"Ferrara, Andrea","last_name":"Ferrara","first_name":"Andrea"},{"first_name":"Seiji","full_name":"Fujimoto, Seiji","last_name":"Fujimoto"},{"full_name":"Hashimoto, Takuya","last_name":"Hashimoto","first_name":"Takuya"},{"last_name":"Heintz","full_name":"Heintz, Kasper","first_name":"Kasper"},{"first_name":"Rodrigo","last_name":"Herrera-Camus","full_name":"Herrera-Camus, Rodrigo"},{"first_name":"Jacqueline","last_name":"Hodge","full_name":"Hodge, Jacqueline"},{"full_name":"Inami, Hanae","last_name":"Inami","first_name":"Hanae"},{"full_name":"Inoue, Akio K.","last_name":"Inoue","first_name":"Akio K."},{"first_name":"Jorryt J","id":"7439a258-f3c0-11ec-9501-9df22fe06720","orcid":"0000-0003-2871-127X","full_name":"Matthee, Jorryt J","last_name":"Matthee"},{"full_name":"Meyer, Romain","last_name":"Meyer","first_name":"Romain"},{"first_name":"Shoichiro","full_name":"Mizukoshi, Shoichiro","last_name":"Mizukoshi"},{"full_name":"Mondal, Chayan","last_name":"Mondal","first_name":"Chayan"},{"first_name":"Themiya","last_name":"Nanayakkara","full_name":"Nanayakkara, Themiya"},{"first_name":"Pascal A.","full_name":"Oesch, Pascal A.","last_name":"Oesch"},{"first_name":"Andrea","last_name":"Pallottini","full_name":"Pallottini, Andrea"},{"first_name":"Huub","full_name":"Röttgering, Huub","last_name":"Röttgering"},{"last_name":"Rowland","full_name":"Rowland, Lucie E.","first_name":"Lucie E."},{"first_name":"Sander","last_name":"Schouws","full_name":"Schouws, Sander"},{"full_name":"Smit, Renske","last_name":"Smit","first_name":"Renske"},{"last_name":"Sommovigo","full_name":"Sommovigo, Laura","first_name":"Laura"},{"first_name":"Daniel P.","last_name":"Stark","full_name":"Stark, Daniel P."},{"last_name":"Sugahara","full_name":"Sugahara, Yuma","first_name":"Yuma"},{"full_name":"Vallini, Livia","last_name":"Vallini","first_name":"Livia"},{"first_name":"Bovornpratch","full_name":"Vijarnwannaluk, Bovornpratch","last_name":"Vijarnwannaluk"},{"first_name":"Paul","full_name":"Van Der Werf, Paul","last_name":"Van Der Werf"},{"first_name":"Norbert","last_name":"Werner","full_name":"Werner, Norbert"},{"last_name":"Witstok","full_name":"Witstok, Joris","first_name":"Joris"},{"first_name":"Mengyuan","full_name":"Xiao, Mengyuan","last_name":"Xiao"}],"title":"A first systematic study of [OIII] 88μm at z>8: two luminous oxygen lines and a powerful ionized outflow in the first 600 million years","publication":"The Open Journal of Astrophysics","abstract":[{"lang":"eng","text":"We present deep ALMA Band 7 observations of the [O iii] 88 µm line and underlying dust continuum\r\nemission in four UV-bright, gravitationally lensed (magnification µ = 1.4 − 3.8), JWST-selected\r\ngalaxies at z = 8.5 − 10.3, with observed magnitudes −22.5 ≲ MUV ≲ −20.5. [O iii] 88 µm is\r\nconfidently detected in UNCOVER-10646 at z = 8.5080 ± 0.0011 (15σ) and DHZ1 at z = 9.3113 ±\r\n0.0006 (6σ), with both being intrinsically luminous systems [L[O iii] = (1.1− 1.6) ×109 L⊙] that follow\r\nthe local [O iii]-SFR relation. [O iii] 88 µm remains undetected in the two z > 10 targets, including in\r\nthe z = 10.07 X-ray AGN UHZ1, where we obtain a deep limit of L[O iii] < 6 × 107 L⊙. Dust emission\r\nis not detected in any individual source nor in a stack (< 3σ). The high S/N [O iii] 88 µm detection\r\nin UNCOVER-10646 uniquely reveals an additional broad component (FWHM = 1366+473\r\n−329 km/s;\r\n∆BIC ≈ 20) indicative of an ionized outflow. We infer a high outflow rate of M˙\r\nout = 128+80\r\n−46 M⊙ yr−1\r\n,\r\ncorresponding to a mass loading factor η = M˙\r\nout/SFR = 2.9\r\n+1.8\r\n−1.0\r\nthat matches or exceeds theoretical\r\npredictions and JWST-based studies of ionized outflows at high redshift. While high-resolution ALMA\r\nfollow-up is required to confirm and spatially resolve the outflow, this first systematic study at z > 8\r\nhighlights the unique diagnostic power of [O iii] 88 µm in characterizing galaxies in the early Universe."}],"date_updated":"2026-09-17T08:31:24Z","arxiv":1,"publication_status":"published","article_processing_charge":"No","day":"21"}]