Imperial College London
Portrait Picture

Dr Clements

Faculty of Natural Sciences, Department of Physics

Reader in Astrophysics
 
 
 
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Contact

 

+44 (0)20 7594 7693d.clements

 
 
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Location

 

1011Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Harikane:2019:1538-4357/ab2cd5,
author = {Harikane, Y and Ouchi, M and Ono, Y and Fujimoto, S and Donevski, D and Shibuya, T and Faisst, AL and Goto, T and Hatsukade, B and Kashikawa, N and Kohno, K and Hashimoto, T and Higuchi, R and Inoue, AK and Lin, Y-T and Martin, CL and Overzier, R and Smail, I and Toshikawa, J and Umehata, H and Ao, Y and Chapman, S and Clements, DL and Im, M and Jing, Y and Kawaguchi, T and Lee, C-H and Lee, MM and Lin, L and Matsuoka, Y and Marinello, M and Nagao, T and Onodera, M and Toft, S and Wang, W-H},
doi = {1538-4357/ab2cd5},
journal = {The Astrophysical Journal: an international review of astronomy and astronomical physics},
pages = {1--16},
title = {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-forminggalaxies},
url = {http://dx.doi.org/10.3847/1538-4357/ab2cd5},
volume = {883},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - We have obtained three-dimensional maps of the universe in ~200 × 200 × 80 comoving Mpc3 (cMpc3) volumes each at z = 5.7 and 6.6 based on a spectroscopic sample of 179 galaxies that achieves gsim80% completeness down to the Lyα luminosity of $\mathrm{log}({L}_{\mathrm{Ly}\alpha }/[\mathrm{erg}\,{{\rm{s}}}^{-1}])=43.0$, 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 sime 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) gsim5 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 ~1014 M .
AU  - Harikane,Y
AU  - Ouchi,M
AU  - Ono,Y
AU  - Fujimoto,S
AU  - Donevski,D
AU  - Shibuya,T
AU  - Faisst,AL
AU  - Goto,T
AU  - Hatsukade,B
AU  - Kashikawa,N
AU  - Kohno,K
AU  - Hashimoto,T
AU  - Higuchi,R
AU  - Inoue,AK
AU  - Lin,Y-T
AU  - Martin,CL
AU  - Overzier,R
AU  - Smail,I
AU  - Toshikawa,J
AU  - Umehata,H
AU  - Ao,Y
AU  - Chapman,S
AU  - Clements,DL
AU  - Im,M
AU  - Jing,Y
AU  - Kawaguchi,T
AU  - Lee,C-H
AU  - Lee,MM
AU  - Lin,L
AU  - Matsuoka,Y
AU  - Marinello,M
AU  - Nagao,T
AU  - Onodera,M
AU  - Toft,S
AU  - Wang,W-H
DO  - 1538-4357/ab2cd5
EP  - 16
PY  - 2019///
SN  - 0004-637X
SP  - 1
TI  - 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-forminggalaxies
T2  - The Astrophysical Journal: an international review of astronomy and astronomical physics
UR  - http://dx.doi.org/10.3847/1538-4357/ab2cd5
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000498390600001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://iopscience.iop.org/article/10.3847/1538-4357/ab2cd5
UR  - http://hdl.handle.net/10044/1/80417
VL  - 883
ER  -
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