A Caltech Library Service

H-ATLAS: A Candidate High Redshift Cluster/Protocluster of Star-Forming Galaxies

Clements, D. L. and Vieira, J. D. (2016) H-ATLAS: A Candidate High Redshift Cluster/Protocluster of Star-Forming Galaxies. Monthly Notices of the Royal Astronomical Society, 461 (2). pp. 1719-1733. ISSN 0035-8711.

[img] PDF - Published Version
See Usage Policy.

[img] PDF - Submitted Version
See Usage Policy.


Use this Persistent URL to link to this item:


We investigate the region around the Planck-detected z=3.26 gravitationally lensed galaxy HATLAS J114637.9-001132 (hereinafter HATLAS12-00) using both archival Herschel data from the H-ATLAS survey and using submm data obtained with both LABOCA and SCUBA2. The lensed source is found to be surrounded by a strong overdensity of both Herschel-SPIRE sources and submm sources. We detect 17 bright (S_(870) > ∼7 mJy) sources at >4σ closer than 5 arcmin to the lensed object at 850/870μm. Ten of these sources have good cross-identifications with objects detected by Herschel-SPIRE which have redder colours than other sources in the field, with 350μm flux > 250μm flux, suggesting that they lie at high redshift. Submillimeter Array (SMA) observations localise one of these companions to ∼1 arcsecond, allowing unambiguous cross identification with a 3.6 and 4.5 μm Spitzer source. The optical/near-IR spectral energy distribution (SED) of this source is measured by further observations and found to be consistent with z > 2, but incompatible with lower redshifts. We conclude that this system may be a galaxy cluster/protocluster or larger scale structure that contains a number of galaxies undergoing starbursts at the same time.

Item Type:Article
Related URLs:
URLURL TypeDescription
Clements, D. L.0000-0002-9548-5033
Additional Information:© 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. Accepted 2016 May 19. Received 2016 May 18; in original form 2014 November 19. First published online May 31, 2016. The Herschel-ATLAS is a project with Herschel, which is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA. The H-ATLAS website is Based in part on observations obtained with Planck (, an ESA science mission with instruments and contributions directly funded by ESA Member States, NASA, and Canada. This publication is also based in part on data acquired with the Atacama Pathfinder Experiment (APEX). APEX is a collaboration between the Max-Planck-Institut fur Radioastronomie, ESO, and the Onsala Space Observatory. The James Clerk Maxwell Telescope has historically been operated by the Joint Astronomy Centre on behalf of the Science and Technology Facilities Council of the United Kingdom, the National Research Council of Canada and the Netherlands Organisation for Scientific Research. The Submillimeter Array is a joint project between the Smithsonian Astrophysical Observatory and the Academia Sinica Institute of Astronomy and Astrophysics and is funded by the Smithsonian Institution and the Academia Sinica. This work is based in part on observations made with the Spitzer Space Telescope, which is operated by the Jet Propulsion Laboratory, California Institute of Technology under a contract with NASA. Based in part on observations made with ESO Telescopes at the La Silla Paranal Observatory under programme ID 290.A-5043. Support for this work was provided by NASA through an award issued by JPL/Caltech. GdZ acknowledge financial support from ASI/INAF agreement 2014-024-R.0. IPF, DH and JGN acknowledge financial support by the Ministerio de Ciencia e Innovacion, AYA2012-39475-C02-01, and Consolider-Ingenio 2010, CSD2010-00064. JGN acknowledges financial support from the Spanish MINECO for a Ramon y Cajal fellowship and from the Spanish CSIC for a JAE-DOC fellowship, co-funded by the European Social Fund. EI acknowledges funding from CONICYT/FONDECYT postdoctoral project N°:3130504. This work was also supported in part by funding from STFC. LD, RJI, IO and SJM acknowledge support from the European Research Council (ERC) in the form of Advanced Investigator Program, COSMICISM. The Dark Cosmology Centre is funded by the Danish National Research Foundation. DLC would like to thank Douglas Scott and Andrew Jaffe for useful discussions.
Funding AgencyGrant Number
Agenzia Spaziale Italiana (ASI)2014-024-R.0
Ministerio de Ciencia e Innovacion (MICINN)AYA2012-39475-C02-01
Consolider-Ingenio 2010CSD2010-00064
Ramon y Cajal FellowshipUNSPECIFIED
Consejo Superior de Investigaciones Científicas (CSIC)UNSPECIFIED
European Social FundUNSPECIFIED
Fondo Nacional de Desarrollo Científico y Tecnológico (FONDECYT)3130504
Science and Technology Facilities Council (STFC)UNSPECIFIED
European Research Council (ERC)COSMICISMM
Danish National Research FoundationUNSPECIFIED
Istituto Nazionale di Astrofisica (INAF)UNSPECIFIED
Subject Keywords:galaxies:starburst submillimetre:galaxies galaxies:high redshift galaxies:clusters
Record Number:CaltechAUTHORS:20161006-140404363
Persistent URL:
Official Citation:D.L. Clements, F. Braglia, G. Petitpas, J. Greenslade, A. Cooray, E. Valiante, G. De Zotti, B. O’Halloran, J. Holdship, B. Morris, I. Pérez-Fournon, D. Herranz, D. Riechers, M. Baes, M. Bremer, N. Bourne, H. Dannerbauer, A. Dariush, L. Dunne, S. Eales, J. Fritz, J. Gonzalez-Nuevo, R. Hopwood, E. Ibar, R.J. Ivison, L.L. Leeuw, S. Maddox, M.J. Michałowski, M. Negrello, A. Omont, I. Oteo, S. Serjeant, I. Valtchanov, J.D. Vieira, J. Wardlow, and P. van der Werf H-ATLAS: A Candidate High Redshift Cluster/Protocluster of Star-Forming Galaxies MNRAS doi:10.1093/mnras/stw1224 first published online May 31, 2016
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:70927
Deposited By: Ruth Sustaita
Deposited On:12 Oct 2016 22:58
Last Modified:24 Oct 2017 22:54

Repository Staff Only: item control page