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Detection of an oxygen emission line from a high-redshift galaxy in the reionization epoch

Inoue, Akio K. (author)
Osaka Sangyo Univ, Coll Gen Educ, 3-1-1 Nakagaito, Daito, Osaka 5748530, Japan.
Tamura, Yoichi (author)
Univ Tokyo, Inst Astron, 2-21-1 Osawa, Mitaka, Tokyo 1810015, Japan.
Matsuo, Hiroshi (author)
Natl Astron Observ Japan, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan.;Grad Univ Adv Studies SOKENDAI, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan.
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Mawatari, Ken (author)
Osaka Sangyo Univ, Coll Gen Educ, 3-1-1 Nakagaito, Daito, Osaka 5748530, Japan.
Shimizu, Ikkoh (author)
Osaka Univ, Dept Earth & Space Sci, 1-1 Machikaneyama, Toyonaka, Osaka 5600043, Japan.
Shibuya, Takatoshi (author)
Univ Tokyo, Inst Cosm Ray Res, 5-1-5 Kashiwanoha, Kashiwa, Chiba 2778582, Japan.
Ota, Kazuaki (author)
Univ Cambridge, Kavli Inst Cosmol, Cambridge CB3 0HA, England.;Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England.
Yoshida, Naoki (author)
Univ Tokyo, Dept Phys, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan.;Univ Tokyo, Kavli IPMU, 5-1-5 Kashiwanoha, Kashiwa, Chiba 2778583, Japan.
Zackrisson, Erik (author)
Uppsala universitet,Observationell astrofysik
Kashikawa, Nobunari (author)
Natl Astron Observ Japan, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan.;Grad Univ Adv Studies SOKENDAI, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan.
Kohno, Kotaro (author)
Univ Tokyo, Inst Astron, 2-21-1 Osawa, Mitaka, Tokyo 1810015, Japan.
Umehata, Hideki (author)
Univ Tokyo, Inst Astron, 2-21-1 Osawa, Mitaka, Tokyo 1810015, Japan.;European So Observ, D-85748 Garching, Germany.
Hatsukade, Bunyo (author)
Natl Astron Observ Japan, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan.
Iye, Masanori (author)
Natl Astron Observ Japan, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan.
Matsuda, Yuichi (author)
Natl Astron Observ Japan, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan.;Grad Univ Adv Studies SOKENDAI, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan.
Okamoto, Takashi (author)
Hokkaido Univ, Grad Sch Sci, Dept Cosmosci, Kita Ku, N10 W8, Sapporo, Hokkaido 0600810, Japan.
Yamaguchi, Yuki (author)
Univ Tokyo, Inst Astron, 2-21-1 Osawa, Mitaka, Tokyo 1810015, Japan.
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Osaka Sangyo Univ, Coll Gen Educ, 3-1-1 Nakagaito, Daito, Osaka 5748530, Japan Univ Tokyo, Inst Astron, 2-21-1 Osawa, Mitaka, Tokyo 1810015, Japan. (creator_code:org_t)
American Association for the Advancement of Science (AAAS), 2016
2016
English.
In: Science. - : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 352:6293, s. 1559-1562
Related links:
http://arxiv.org/pdf...
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https://urn.kb.se/re...
https://doi.org/10.1...
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  • Journal article (peer-reviewed)
Abstract Subject headings
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  • The physical properties and elemental abundances of the interstellar medium in galaxies during cosmic reionization are important for understanding the role of galaxies in this process. We report the Atacama Large Millimeter/submillimeter Array detection of an oxygen emission line at a wavelength of 88 micrometers from a galaxy at an epoch about 700 million years after the Big Bang. The oxygen abundance of this galaxy is estimated at about one-tenth that of the Sun. The nondetection of far-infrared continuum emission indicates a deficiency of interstellar dust in the galaxy. A carbon emission line at a wavelength of 158 micrometers is also not detected, implying an unusually small amount of neutral gas. These properties might allow ionizing photons to escape into the intergalactic medium.

Subject headings

NATURVETENSKAP  -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)

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