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The Herschel Multi-tiered Extragalactic Survey: SPIRE–mm photometric redshifts

Roseboom, I. G. and Blain, A. and Bock, J. and Cooray, A. and Dowell, C. D. and Levenson, L. and Lu, N. and Nguyen, H. T. and Schulz, B. and Shupe, D. L. and Vieira, J. D. and Viero, M. P. and Xu, C. K. and Zemcov, M. (2012) The Herschel Multi-tiered Extragalactic Survey: SPIRE–mm photometric redshifts. Monthly Notices of the Royal Astronomical Society, 419 (4). pp. 2758-2773. ISSN 0035-8711.

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We investigate the potential of submm–mm and submm–mm–radio photometric redshifts using a sample of mm-selected sources as seen at 250, 350 and 500μm by the SPIRE instrument on Herschel. From a sample of 63 previously identified mm sources with reliable radio identifications in the Great Observatories Origins Deep Survey North and Lockman Hole North fields, 46 (73 per cent) are found to have detections in at least one SPIRE band. We explore the observed submm/mm colour evolution with redshift, finding that the colours of mm sources are adequately described by a modified blackbody with constant optical depth τ= (ν/nu_0)^β, where β=+1.8 and ν_0=c/100 μm. We find a tight correlation between dust temperature and IR luminosity. Using a single model of the dust temperature and IR luminosity relation, we derive photometric redshift estimates for the 46 SPIRE-detected mm sources. Testing against the 22 sources with known spectroscopic or good quality optical/near-IR photometric redshifts, we find submm/mm photometric redshifts offer a redshift accuracy of |Δz|/(1 +z) = 0.16 (〈|Δz|〉= 0.51). Including constraints from the radio–far-IR correlation, the accuracy is improved to |Δz|/(1 +z) = 0.15 (〈|Δz|〉= 0.45). We estimate the redshift distribution of mm-selected sources finding a significant excess at z > 3 when compared to ∼ 850 μm selected samples.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Blain, A.0000-0001-7489-5167
Bock, J.0000-0002-5710-5212
Cooray, A.0000-0002-3892-0190
Lu, N.0000-0002-8948-1044
Shupe, D. L.0000-0003-4401-0430
Xu, C. K.0000-0002-1588-6700
Zemcov, M.0000-0001-8253-1451
Additional Information:© 2011 The Authors. Monthly Notices of the Royal Astronomical Society © 2011 RAS. Accepted 2011 September 12. Received 2011 September 12; in original form 2011 February 10. Article first published online: 15 Dec. 2011. We thank the anonymous referee for suggestions which greatly enhanced this work. LW and SJO were supported by the Science and Technology Facilities Council (ST/F002858/1). JSD acknowledges the support of the Royal Society via a Wolfson Research Merit award, and the support of the European Research Council via the award of an Advanced Grant. AF, GM, LM and MV were supported by the Italian Space Agency (ASI Herschel Science Contract I/005/07/0). SPIRE has been developed by a consortium of institutes led by Cardiff University (UK) and including University of Lethbridge (Canada), NAOC (China), CEA, LAM(France), IFSI, University of Padua (Italy), IAC (Spain), Stockholm Observatory (Sweden), Imperial College London, RAL, UCL-MSSL, UK ATC, University of Sussex (UK), Caltech, JPL, NHSC, University of Colorado (USA). This development has been supported by national funding agencies: CSA (Canada); NAOC (China); CEA, CNES, CNRS (France); ASI (Italy); MCINN (Spain); SNSB (Sweden); STFC (UK) and NASA (USA). The data presented in this paper will be released through the Herschel Database in Marseille HeDaM (
Group:Infrared Processing and Analysis Center (IPAC), TAPIR
Funding AgencyGrant Number
Science and Technology Facilities Council (STFC)ST/F002858/1
European Research Council (ERC)UNSPECIFIED
Agenzia Spaziale Italiana (ASI)I/005/07/0
Canadian Space Agency (CSA)UNSPECIFIED
National Astronomical Observatories, Chinese Academy of Sciences (NAOC)UNSPECIFIED
Commissariat à l’Energie Atomique (CEA)UNSPECIFIED
Centre National d'Études Spatiales (CNES)UNSPECIFIED
Centre National de la Recherche Scientifique (CNRS)UNSPECIFIED
Ministerio de Ciencia e Innovación (MCINN)UNSPECIFIED
Swedish National Space Board (SNSB)UNSPECIFIED
Subject Keywords:galaxies: high-redshift; galaxies: statistics; submillimetre: galaxies
Issue or Number:4
Record Number:CaltechAUTHORS:20120328-085250071
Persistent URL:
Official Citation:Roseboom, I. G., Ivison, R. J., Greve, T. R., Amblard, A., Arumugam, V., Auld, R., Aussel, H., Bethermin, M., Blain, A., Bock, J., Boselli, A., Brisbin, D., Buat, V., Burgarella, D., Castro-Rodríguez, N., Cava, A., Chanial, P., Chapin, E., Chapman, S., Clements, D. L., Conley, A., Conversi, L., Cooray, A., Dowell, C. D., Dunlop, J. S., Dwek, E., Eales, S., Elbaz, D., Farrah, D., Franceschini, A., Glenn, J., Griffin, M., Halpern, M., Hatziminaoglou, E., Ibar, E., Isaak, ., Lagache, ., Levenson, L., Lu, N., Madden, S., Maffei, B., Mainetti, G., Marchetti, L., Marsden, G., Morrison, G., Mortier, A. M. J., Nguyen, H. T., O’Halloran, B., Oliver, S. J., Omont, A., Page, M. J., Panuzzo, P., Papageorgiou, A., Pearson, C. P., Pérez-Fournon, I., Pohlen, M., Rawlings, J. I., Raymond, G., Rigopoulou, D., Rizzo, D., Rodighiero, G., Rowan-Robinson, M., Schulz, B., Scott, D., Seymour, N., Shupe, D. L., Smith, A. J., Stevens, J. A., Symeonidis, M., Trichas, M., Tugwell, K. E., Vaccari, M., Valtchanov, I., Vieira, J. D., Viero, M. P., Vigroux, L., Wardlow, J., Wang, L., Wright, G., Xu, C. K. and Zemcov, M. (2012), The Herschel Multi-tiered Extragalactic Survey: SPIRE–mm photometric redshifts. Monthly Notices of the Royal Astronomical Society, 419: 2758–2773. doi: 10.1111/j.1365-2966.2011.19827.x
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:29873
Deposited By: Ruth Sustaita
Deposited On:28 Mar 2012 16:45
Last Modified:03 Mar 2020 13:01

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