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The onset of star f...
The onset of star formation 250 million years after the Big Bang
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- Hashimoto, Takuya (författare)
- Osaka Sangyo Univ, Dept Environm Sci & Technol, Fac Design Technol, Osaka, Japan;Natl Astron Observ Japan, Tokyo, Japan
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- Laporte, Nicolas (författare)
- UCL, Dept Phys & Astron, London, England;Univ Toulouse, CNRS, IRAP, UPS,CNES, Toulouse, France
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- Mawatari, Ken (författare)
- Osaka Sangyo Univ, Dept Environm Sci & Technol, Fac Design Technol, Osaka, Japan
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- Ellis, Richard S. (författare)
- UCL, Dept Phys & Astron, London, England
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- Inoue, Akio K. (författare)
- Osaka Sangyo Univ, Dept Environm Sci & Technol, Fac Design Technol, Osaka, Japan
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- Zackrisson, Erik (författare)
- Uppsala universitet,Observationell astrofysik
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- Roberts-Borsani, Guido (författare)
- UCL, Dept Phys & Astron, London, England
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- Zheng, Wei (författare)
- Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA
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- Tamura, Yoichi (författare)
- Nagoya Univ, Grad Sch Sci, Div Particle & Astrophys Sci, Nagoya, Aichi, Japan
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- Bauer, Franz E. (författare)
- Pontificia Univ Catolica Chile, Fac Fis, Inst Astrofis, Santiago, Chile;Pontificia Univ Catolica Chile, Fac Fis, Ctr Astroingn, Santiago, Chile;Space Sci Inst, Boulder, CO USA
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- Fletcher, Thomas (författare)
- UCL, Dept Phys & Astron, London, England
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- Harikane, Yuichi (författare)
- Univ Tokyo, Inst Cosm Ray Res, Chiba, Japan;Univ Tokyo, Grad Sch Sci, Dept Phys, Tokyo, Japan
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- Hatsukade, Bunyo (författare)
- Univ Tokyo, Inst Astron, Tokyo, Japan
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- Hayatsu, Natsuki H. (författare)
- Univ Tokyo, Grad Sch Sci, Dept Phys, Tokyo, Japan;European Southern Observ, Garching, Germany
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- Matsuda, Yuichi (författare)
- Natl Astron Observ Japan, Tokyo, Japan;Grad Univ Adv Studies SOKENDAI, Sch Phys Sci, Dept Astron Sci, Tokyo, Japan
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- Matsuo, Hiroshi (författare)
- Natl Astron Observ Japan, Tokyo, Japan;Grad Univ Adv Studies SOKENDAI, Sch Phys Sci, Dept Astron Sci, Tokyo, Japan
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- Okamoto, Takashi (författare)
- Hokakido Univ, Dept Cosmosci, Grad Sch Sci, Sapporo, Hokkaido, Japan
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- Ouchi, Masami (författare)
- Univ Tokyo, Inst Cosm Ray Res, Chiba, Japan;Univ Tokyo, Kavli Inst Phys & Math Universe WPI, Todai Inst Adv Study, Chiba, Japan
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- Pello, Roser (författare)
- Univ Toulouse, CNRS, IRAP, UPS,CNES, Toulouse, France
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- Rydberg, Claes-Erik (författare)
- Heidelberg Univ, Zentrum Astron, Inst Theoret Astrophys, Heidelberg, Germany
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- Shimizu, Ikkoh (författare)
- Osaka Univ, Dept Earth & Space Sci, Theoret Astrophys, Osaka, Japan
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- Taniguchi, Yoshiaki (författare)
- Open Univ Japan, Chiba, Japan
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- Umehata, Hideki (författare)
- Open Univ Japan, Chiba, Japan;Inst Phys & Chem Res RIKEN, Saitama, Japan
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- Yoshida, Naoki (författare)
- Univ Tokyo, Grad Sch Sci, Dept Phys, Tokyo, Japan;Univ Tokyo, Kavli Inst Phys & Math Universe WPI, Todai Inst Adv Study, Chiba, Japan
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(creator_code:org_t)
- 2018-05-16
- 2018
- Engelska.
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Ingår i: Nature. - : NATURE PUBLISHING GROUP. - 0028-0836 .- 1476-4687. ; 557:7705, s. 392-395
- Relaterad länk:
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http://arxiv.org/pdf...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- A fundamental quest of modern astronomy is to locate the earliest galaxies and study how they influenced the intergalactic medium a few hundred million years after the Big Bang(1-3). The abundance of star-forming galaxies is known to decline(4,5) from redshifts of about 6 to 10, but a key question is the extent of star formation at even earlier times, corresponding to the period when the first galaxies might have emerged. Here we report spectroscopic observations of MACS1149-JD1(6), a gravitationally lensed galaxy observed when the Universe was less than four per cent of its present age. We detect an emission line of doubly ionized oxygen at a redshift of 9.1096 +/- 0.0006, with an uncertainty of one standard deviation. This precisely determined redshift indicates that the red rest-frame optical colour arises from a dominant stellar component that formed about 250 million years after the Big Bang, corresponding to a redshift of about 15. Our results indicate that it may be possible to detect such early episodes of star formation in similar galaxies with future telescopes.
Ämnesord
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
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Hashimoto, Takuy ...
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Laporte, Nicolas
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Mawatari, Ken
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Ellis, Richard S ...
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Inoue, Akio K.
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Zackrisson, Erik
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visa fler...
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Roberts-Borsani, ...
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Zheng, Wei
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Tamura, Yoichi
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Bauer, Franz E.
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Fletcher, Thomas
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Harikane, Yuichi
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Hatsukade, Bunyo
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Hayatsu, Natsuki ...
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Matsuda, Yuichi
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Matsuo, Hiroshi
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Okamoto, Takashi
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Ouchi, Masami
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Pello, Roser
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Rydberg, Claes-E ...
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Shimizu, Ikkoh
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Taniguchi, Yoshi ...
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Umehata, Hideki
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Yoshida, Naoki
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