SILVERRUSH. VIII. Spectroscopic Identifications of Early Large-scale Structures with Protoclusters over 200 Mpc at z similar to 6-7: Strong Associations of Dusty Star-forming Galaxies
文献类型：期刊论文
| 作者 | Harikane, Yuichi28,29,30; Ouchi, Masami27,30; Ono, Yoshiaki30; Fujimoto, Seiji26,30; Donevski, Darko24,25; Shibuya, Takatoshi23; Faisst, Andreas L.22; Goto, Tomotsugu21; Hatsukade, Bunyo20; Kashikawa, Nobunari26 |
| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2019-10-01 |
| 卷号 | 883期号:2页码:16 |
| ISSN号 | 0004-637X |
| 关键词 | galaxies: evolution galaxies: formation galaxies: high-redshift |
| DOI | 10.3847/1538-4357/ab2cd5 |
| 通讯作者 | Harikane, Yuichi(hari@icrr.u-tokyo.ac.jp) |
| 英文摘要 | We have obtained three-dimensional maps of the universe in similar to 200 x 200 x 80 comoving Mpc(3) (cMpc(3)) volumes each at z = 5.7 and 6.6 based on a spectroscopic sample of 179 galaxies that achieves greater than or similar to 80% completeness down to the Ly alpha luminosity of log(L-Ly alpha/[erg s(-1)]) = 43.0, based on our Keck and Gemini observations and the literature. The maps reveal filamentary large-scale structures and two remarkable overdensities made out of at least 44 and 12 galaxies at z = 5.692 (z57OD) and z = 6.585 (z66OD), respectively, making z66OD the most distant overdensity spectroscopically confirmed to date, with >10 spectroscopically confirmed galaxies. We compare spatial distributions of submillimeter galaxies at z similar or equal to 4-6 with our z = 5.7 galaxies forming the large-scale structures, and detect a 99.97% signal of cross-correlation, indicative of a clear coincidence of dusty star-forming galaxy and dust-unobscured galaxy formation at this early epoch. The galaxies in z57OD and z66OD are actively forming stars with star-formation rates (SFRs) greater than or similar to 5 times higher than the main sequence, and particularly the SFR density in z57OD is 10 times higher than the cosmic average at the redshift (a.k.a. the Madau-Lilly plot). Comparisons with numerical simulations suggest that z57OD and z66OD are protoclusters that are progenitors of the present-day clusters with halo masses of similar to 10(14) M-circle dot. |
| WOS关键词 | LY-ALPHA EMITTERS ; LYMAN-BREAK GALAXIES ; RADIO GALAXY ; HIGH-REDSHIFT ; PROTO-CLUSTER ; ENVIRONMENTAL DEPENDENCE ; EMITTING GALAXIES ; NEBULAR EMISSION ; DENSITY RELATION ; DEEP SURVEY |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| WOS记录号 | WOS:000498390600001 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/35220]  |
| 专题 | 中国科学院紫金山天文台 |
| 通讯作者 | Harikane, Yuichi |
| 作者单位 | 1.Niels Bohr Inst, Cosm Dawn Ctr Dawn, Juliane Mariesvej 30, DK-2100 Copenhagen, Denmark 2.Ehime Univ, Res Ctr Space & Cosm Evolut, Bunkyo Cho, Matsuyama, Ehime 7908577, Japan 3.Nagoya Univ, Grad Sch Sci, Div Particle & Astrophys Sci, Chikusa Ku, Furo Cho, Nagoya, Aichi 4648602, Japan 4.NAOJ, Subaru Telescope, 650 N Aohoku P1, Hilo, HI 96720 USA 5.Onomichi City Univ, Dept Econ Management & Informat Sci, Hisayamada 1600-2, Onomichi, Hiroshima 7228506, Japan 6.Shanghai Jiao Tong Univ, IFSA Collaborat Innovat Ctr, Shanghai 200240, Peoples R China 7.Shanghai Jiao Tong Univ, Sch Phys & Astron, Tsung Dao Lee Inst, 800 Dongchuan Rd, Shanghai 200240, Peoples R China 8.Seoul Natl Univ, Dept Phys & Astron, CEOU Astron Program, Seoul, South Korea 9.Imperial Coll London, Blackett Lab, Astrophys Grp, Prince Consort Rd, London SW7 2AZ, England 10.Dalhousie Univ, Dept Phys & Atmospher Sci, Halifax, NS B3H 3J5, Canada |
| 推荐引用方式 GB/T 7714 | Harikane, Yuichi,Ouchi, Masami,Ono, Yoshiaki,et al. SILVERRUSH. VIII. Spectroscopic Identifications of Early Large-scale Structures with Protoclusters over 200 Mpc at z similar to 6-7: Strong Associations of Dusty Star-forming Galaxies[J]. ASTROPHYSICAL JOURNAL,2019,883(2):16. |
| APA | Harikane, Yuichi.,Ouchi, Masami.,Ono, Yoshiaki.,Fujimoto, Seiji.,Donevski, Darko.,...&Wang, Wei-Hao.(2019).SILVERRUSH. VIII. Spectroscopic Identifications of Early Large-scale Structures with Protoclusters over 200 Mpc at z similar to 6-7: Strong Associations of Dusty Star-forming Galaxies.ASTROPHYSICAL JOURNAL,883(2),16. |
| MLA | Harikane, Yuichi,et al."SILVERRUSH. VIII. Spectroscopic Identifications of Early Large-scale Structures with Protoclusters over 200 Mpc at z similar to 6-7: Strong Associations of Dusty Star-forming Galaxies".ASTROPHYSICAL JOURNAL 883.2(2019):16. |
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来源：紫金山天文台
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