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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
http://hdl.handle.net/2237/00030542
http://hdl.handle.net/2237/0003054243101c53-97b4-4d3f-9794-62f57df047bc
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
Tamura_2019_ApJ_874_27 (1.9 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-07-11 | |||||
| タイトル | ||||||
| タイトル | 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 | |||||
| 言語 | en | |||||
| 著者 |
Tamura, Yoichi
× 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 |
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| アクセス権 | ||||||
| アクセス権 | open access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
| 権利 | ||||||
| 言語 | en | |||||
| 権利情報 | © 2019. The American Astronomical Society | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | dust, extinction | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | galaxies: formation | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | galaxies: high-redshift | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | galaxies: ISM | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | 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 LIR=(1.7±0.3)×10^11L⊙ if assuming a dust temperature of T dust = 50 K and an emissivity index of β = 1.5, yielding a large dust mass of 4×10^6M⊙. 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 (SFR ≈ 60M⊙ yr^−1), moderately metal-polluted (Z ≈ 0.2Z ⊙) stellar component with a mass of M star = 3 × 10^8 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 × 10^9 M☉ and τage ~ 0.3 Gyr as the origin of the dust mass. | |||||
| 言語 | en | |||||
| 出版者 | ||||||
| 出版者 | IOP publishing | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
| タイプ | journal article | |||||
| 出版タイプ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| DOI | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.3847/1538-4357/ab0374 | |||||
| ISSN（print） | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 1538-4357 | |||||
| 書誌情報 |
en : The Astrophysical Journal 巻 874, 号 1, p. 27, 発行日 2019-03 |
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| 著者版フラグ | ||||||
| 値 | publisher | |||||
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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, 2019, 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: IOP publishing, 27– p.
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