Abstract
We present the Atacama Large Millimeter/submillimeter Array detection of the [O iii] 88 μm line and rest-frame 90 μm dust continuum emission in a Y-dropout Lyman break galaxy (LBG), MACS0416-Y1 lying behind the Frontier Field cluster MACS J0416.1-2403. This [O iii] detection confirms the LBG with a spectroscopic redshift of z = 8.3118 ± 0.0003, making this object one of the farthest galaxies ever identified spectroscopically. The observed 850 μm flux density of 137 ± 26 μJy corresponds to a de-lensed total infrared (IR) luminosity of if assuming a dust temperature of T dust = 50 K and an emissivity index of β = 1.5, yielding a large dust mass of . The ultraviolet-to-far-IR spectral energy distribution modeling where the [O iii] emissivity model is incorporated suggests the presence of a young (τ age ≈ 4 Myr), star-forming ( yr -1 ), moderately metal-polluted (Z ≈ 0.2Z o ) stellar component with a mass of M star = 3 ×10 8 M o . An analytic dust mass evolution model with a single episode of star formation does not reproduce the metallicity and dust mass in τ age ≈ 4 Myr, suggesting a pre-existing evolved stellar component with M star ∼ 3 ×10 9 M and τ age ∼ 0.3 Gyr as the origin of the dust mass.
| Original language | English |
|---|---|
| Article number | 27 |
| Journal | Astrophysical Journal |
| Volume | 874 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2019 Mar 20 |
Keywords
- dust, extinction
- galaxies: ISM
- galaxies: formation
- galaxies: high-redshift
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science
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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. / Tamura, Yoichi; Mawatari, Ken; Hashimoto, Takuya; Inoue, Akio K.; Zackrisson, Erik; Christensen, Lise; Binggeli, Christian; Matsuda, Yuichi; Matsuo, Hiroshi; Takeuchi, Tsutomu T.; Asano, Ryosuke S.; Sunaga, Kaho; Shimizu, Ikkoh; Okamoto, Takashi; Yoshida, Naoki; Lee, Minju M.; Shibuya, Takatoshi; Taniguchi, Yoshiaki; Umehata, Hideki; Hatsukade, Bunyo; Kohno, Kotaro; Ota, Kazuaki.
In: Astrophysical Journal, Vol. 874, No. 1, 27, 20.03.2019.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Detection of the Far-infrared [O III] and Dust Emission in a Galaxy at Redshift 8.312
T2 - Early Metal Enrichment in the Heart of the Reionization Era
AU - Tamura, Yoichi
AU - Mawatari, Ken
AU - Hashimoto, Takuya
AU - Inoue, Akio K.
AU - Zackrisson, Erik
AU - Christensen, Lise
AU - Binggeli, Christian
AU - Matsuda, Yuichi
AU - Matsuo, Hiroshi
AU - Takeuchi, Tsutomu T.
AU - Asano, Ryosuke S.
AU - Sunaga, Kaho
AU - Shimizu, Ikkoh
AU - Okamoto, Takashi
AU - Yoshida, Naoki
AU - Lee, Minju M.
AU - Shibuya, Takatoshi
AU - Taniguchi, Yoshiaki
AU - Umehata, Hideki
AU - Hatsukade, Bunyo
AU - Kohno, Kotaro
AU - Ota, Kazuaki
N1 - Funding Information: Yoichi Tamura Ken Mawatari Takuya Hashimoto Akio K. Inoue Erik Zackrisson Lise Christensen Christian Binggeli Yuichi Matsuda Hiroshi Matsuo Tsutomu T. Takeuchi Ryosuke S. Asano Kaho Sunaga Ikkoh Shimizu Takashi Okamoto Naoki Yoshida Minju M. Lee Takatoshi Shibuya Yoshiaki Taniguchi Hideki Umehata Bunyo Hatsukade Kotaro Kohno Kazuaki Ota Yoichi Tamura Ken Mawatari Takuya Hashimoto Akio K. Inoue Erik Zackrisson Lise Christensen Christian Binggeli Yuichi Matsuda Hiroshi Matsuo Tsutomu T. Takeuchi Ryosuke S. Asano Kaho Sunaga Ikkoh Shimizu Takashi Okamoto Naoki Yoshida Minju M. Lee Takatoshi Shibuya Yoshiaki Taniguchi Hideki Umehata Bunyo Hatsukade Kotaro Kohno Kazuaki Ota Division of Particle and Astrophysical Science, Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan Department of Environmental Science and Technology, Faculty of Design Technology, Osaka Sangyo University, 3-1-1, Nakagaito, Daito, Osaka 574-8530, Japan Institute for Cosmic Ray Research, The University of Tokyo, Kashiwa, Chiba 277-8582, Japan National Astronomical Observatory of Japan, 2-21-1, Osawa, Mitaka, Tokyo 181-8588, Japan Observational Astrophysics, Department of Physics and Astronomy, Uppsala University, Box 516, SE-751 20 Uppsala, Sweden Dark Cosmology Centre, Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, DK-2100 Copenhagen, Denmark The Graduate University for Advanced Studies (SOKENDAI), 2-21-1, Osawa, Mitaka, Tokyo 181-8588, Japan Department of Earth & Space Science, Osaka University, 1-1, Machikaneyama, Toyonaka, Osaka 560-0043, Japan Department of Cosmosciences, Graduate School of Science, Hokkaido University, N10W8, Kitaku, Sapporo 060-0810, Japan Department of Physics, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan Department of Computer Science, Kitami Institute of Technology, 165 Koen-cho, Kitami, Hokkaido 090-8507, Japan The Open University of Japan, 2-11 Wakaba, Mihama-ku, Chiba 261-8586, Japan RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan Institute of Astronomy, The University of Tokyo, 2-21-1, Osawa, Mitaka, Tokyo 181-0015, Japan Research Center for the Early Universe, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan Kavli Institute for Cosmology, University of Cambridge, Madingley Road, Cambridge, CB3 0HA, UK Kyoto University Research Administration Office, Yoshida-Honmachi, Sakyo-ku, Kyoto 606-8501, Japan Yoichi Tamura, Ken Mawatari, Takuya Hashimoto, Akio K. Inoue, Erik Zackrisson, Lise Christensen, Christian Binggeli, Yuichi Matsuda, Hiroshi Matsuo, Tsutomu T. Takeuchi, Ryosuke S. Asano, Kaho Sunaga, Ikkoh Shimizu, Takashi Okamoto, Naoki Yoshida, Minju M. Lee, Takatoshi Shibuya, Yoshiaki Taniguchi, Hideki Umehata, Bunyo Hatsukade, Kotaro Kohno and Kazuaki Ota 2019-03-20 2019-03-19 18:35:42 cgi/release: Article released bin/incoming: New from .zip yes We present the Atacama Large Millimeter/submillimeter Array detection of the [O iii ] 88 μ m line and rest-frame 90 μ m dust continuum emission in a Y -dropout Lyman break galaxy (LBG), MACS0416_Y1 lying behind the Frontier Field cluster MACS J0416.1−2403. This [O iii ] detection confirms the LBG with a spectroscopic redshift of z �=�8.3118���0.0003, making this object one of the farthest galaxies ever identified spectroscopically. The observed 850 μ m flux density of 137���26 μ Jy corresponds to a de-lensed total infrared (IR) luminosity of if assuming a dust temperature of T dust �=�50 K and an emissivity index of β �=�1.5, yielding a large dust mass of . The ultraviolet-to-far-IR spectral energy distribution modeling where the [O iii ] emissivity model is incorporated suggests the presence of a young ( τ age �≈�4 Myr), star-forming ( yr −1 ), moderately metal-polluted ( Z �≈�0.2 Z ⊙ ) stellar component with a mass of M star �=�3�נ10 8 M ⊙ . An analytic dust mass evolution model with a single episode of star formation does not reproduce the metallicity and dust mass in τ age �≈�4 Myr, suggesting a pre-existing evolved stellar component with M star �∼�3�נ10 9 � M ☉ and τ age �∼�0.3 Gyr as the origin of the dust mass. � 2019. The American Astronomical Society. All rights reserved. Asano R. S., Takeuchi T. T., Hirashita H. and Inoue A. K. 2013a EP&S 65 213 10.5047/eps.2012.04.014 Asano R. S., Takeuchi T. 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PY - 2019/3/20
Y1 - 2019/3/20
N2 - We present the Atacama Large Millimeter/submillimeter Array detection of the [O iii] 88 μm line and rest-frame 90 μm dust continuum emission in a Y-dropout Lyman break galaxy (LBG), MACS0416-Y1 lying behind the Frontier Field cluster MACS J0416.1-2403. This [O iii] detection confirms the LBG with a spectroscopic redshift of z = 8.3118 ± 0.0003, making this object one of the farthest galaxies ever identified spectroscopically. The observed 850 μm flux density of 137 ± 26 μJy corresponds to a de-lensed total infrared (IR) luminosity of if assuming a dust temperature of T dust = 50 K and an emissivity index of β = 1.5, yielding a large dust mass of . The ultraviolet-to-far-IR spectral energy distribution modeling where the [O iii] emissivity model is incorporated suggests the presence of a young (τ age ≈ 4 Myr), star-forming ( yr -1 ), moderately metal-polluted (Z ≈ 0.2Z o ) stellar component with a mass of M star = 3 ×10 8 M o . An analytic dust mass evolution model with a single episode of star formation does not reproduce the metallicity and dust mass in τ age ≈ 4 Myr, suggesting a pre-existing evolved stellar component with M star ∼ 3 ×10 9 M and τ age ∼ 0.3 Gyr as the origin of the dust mass.
AB - We present the Atacama Large Millimeter/submillimeter Array detection of the [O iii] 88 μm line and rest-frame 90 μm dust continuum emission in a Y-dropout Lyman break galaxy (LBG), MACS0416-Y1 lying behind the Frontier Field cluster MACS J0416.1-2403. This [O iii] detection confirms the LBG with a spectroscopic redshift of z = 8.3118 ± 0.0003, making this object one of the farthest galaxies ever identified spectroscopically. The observed 850 μm flux density of 137 ± 26 μJy corresponds to a de-lensed total infrared (IR) luminosity of if assuming a dust temperature of T dust = 50 K and an emissivity index of β = 1.5, yielding a large dust mass of . The ultraviolet-to-far-IR spectral energy distribution modeling where the [O iii] emissivity model is incorporated suggests the presence of a young (τ age ≈ 4 Myr), star-forming ( yr -1 ), moderately metal-polluted (Z ≈ 0.2Z o ) stellar component with a mass of M star = 3 ×10 8 M o . An analytic dust mass evolution model with a single episode of star formation does not reproduce the metallicity and dust mass in τ age ≈ 4 Myr, suggesting a pre-existing evolved stellar component with M star ∼ 3 ×10 9 M and τ age ∼ 0.3 Gyr as the origin of the dust mass.
KW - dust, extinction
KW - galaxies: ISM
KW - galaxies: formation
KW - galaxies: high-redshift
UR - http://www.scopus.com/inward/record.url?scp=85064428612&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85064428612&partnerID=8YFLogxK
U2 - 10.3847/1538-4357/ab0374
DO - 10.3847/1538-4357/ab0374
M3 - Article
AN - SCOPUS:85064428612
VL - 874
JO - Astrophysical Journal
JF - Astrophysical Journal
SN - 0004-637X
IS - 1
M1 - 27
ER -