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HerMES: Candidate High-redshift Galaxies Discovered with Herschel/SPIRE

Dowell, C. Darren and Bock, J. and Bridge, C. and Cooray, A. and Nguyen, H. T. and Riechers, D. and Sayers, J. and Schulz, B. and Shupe, D. L. and Vieira, J. D. and Viero, M. and Xu, C. K. and Zemcov, M. (2014) HerMES: Candidate High-redshift Galaxies Discovered with Herschel/SPIRE. Astrophysical Journal, 780 (1). Art. No. 75. ISSN 0004-637X. http://resolver.caltech.edu/CaltechAUTHORS:20140131-080059273

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Abstract

We present a method for selecting z > 4 dusty, star-forming galaxies (DSFGs) using Herschel/Spectral and Photometric Imaging Receiver 250/350/500 μm flux densities to search for red sources. We apply this method to 21 deg^2 of data from the HerMES survey to produce a catalog of 38 high-z candidates. Follow-up of the first five of these sources confirms that this method is efficient at selecting high-z DSFGs, with 4/5 at z = 4.3-6.3 (and the remaining source at z = 3.4), and that they are some of the most luminous dusty sources known. Comparison with previous DSFG samples, mostly selected at longer wavelengths (e.g., 850 μm) and in single-band surveys, shows that our method is much more efficient at selecting high-z DSFGs, in the sense that a much larger fraction are at z > 3. Correcting for the selection completeness and purity, we find that the number of bright (S_(500μm) ≥ 30 mJy), red Herschel sources is 3.3 ± 0.8 deg^(–2). This is much higher than the number predicted by current models, suggesting that the DSFG population extends to higher redshifts than previously believed. If the shape of the luminosity function for high-z DSFGs is similar to that at z ~ 2, rest-frame UV based studies may be missing a significant component of the star formation density at z = 4-6, even after correction for extinction.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1088/0004-637X/780/1/75DOIArticle
http://iopscience.iop.org/0004-637X/780/1/75/PublisherArticle
http://arxiv.org/abs/1310.7583arXivDiscussion Paper
ORCID:
AuthorORCID
Bock, J.0000-0002-5710-5212
Cooray, A.0000-0002-3892-0190
Riechers, D.0000-0001-9585-1462
Shupe, D. L.0000-0003-4401-0430
Xu, C. K.0000-0002-1588-6700
Zemcov, M.0000-0001-8253-1451
Additional Information:© 2014 American Astronomical Society. Received 2013 July 12; accepted 2013 October 25; published 2013 December 13. Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA. This material is based upon work supported by the National Aeronautics and Space Administration under grant No. 12- ADAP12-0139 issued through the ADAP program. Part of this work was performed at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with NASA. SPIRE has been developed by a consortium of institutes led by Cardiff Univ. (UK) and including Univ. Lethbridge (Canada); NAOC (China); CEA, LAM (France); IFSI, Univ. Padua (Italy); IAC (Spain); Stockholm Observatory (Sweden); Imperial College London, RAL, UCL-MSSL, UKATC, Univ. Sussex (UK); Caltech, JPL, NHSC, Univ. 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 SPIRE data presented in paper this have been released through the Herschel Database in Marseille, HeDAM (http://hedam.oamp.fr/HerMES). Some of this material is based upon work at the Caltech Submillimeter Observatory, which was operated by the California Institute of Technology under cooperative agreement with the National Science Foundation (AST- 0838261). 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. Based in part on observations carried out with the IRAM Plateau de Bure Interferometer. IRAM is supported by INSU/CNRS (France), MPG (Germany) and IGN (Spain). Support for CARMA construction was derived from the Gordon and Betty Moore Foundation, the Kenneth T. and Eileen L. Norris Foundation, the James S. McDonnell Foundation, the Associates of the California Institute of Technology, the University of Chicago, the states of California, Illinois and Maryland, and the National Science Foundation. Ongoing CARMA development and operations are supported by the National Science Foundation under a cooperative agreement and the CARMA partner universities. Some of the data presented herein were obtained at the W. M. Keck Observatory, which is operated as a scientific partnership among the California Institute of Technology, the University of California and the National Aeronautics and Space Administration. The Observatory was made possible by the generous financial support of the W. M. Keck Foundation. Based in part on observations made with the Gran Telescopio Canarias (GTC), installed in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofisica de Canarias, in the island of La Palma. This research made use of Astropy (http://www.astropy.org), a community-developed core Python package for Astronomy (Astropy Collaboration 2013). This research has made use of NASA’s Astrophysics Data System Bibliographic Services. This research has made use of the NASA/IPAC Extragalactic Database (NED) which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. Facilities: Herschel (SPIRE), CSO (Bolocam, Z-Spec), CARMA, SMA, IRAM:Interferometer, Keck:I (LRIS), GTC (OSIRIS), MERLIN.
Funders:
Funding AgencyGrant Number
NASA12- ADAP12-0139
NASA/JPL/CaltechUNSPECIFIED
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
Agenzia Spaziale Italiana (ASI)UNSPECIFIED
Ministerio de Ciencia e Innovación (MCINN)UNSPECIFIED
Swedish National Space Board (SNSB)UNSPECIFIED
Science and Technology Facilities Council (STFC)UNSPECIFIED
NSFAST-0838261
Smithsonian InstitutionUNSPECIFIED
Academia SinicaUNSPECIFIED
Institut national des sciences de l'Univers (INSU)UNSPECIFIED
Max-Planck-GesellschaftUNSPECIFIED
Instituto Geográfico Nacional (IGN)UNSPECIFIED
Gordon and Betty Moore FoundationUNSPECIFIED
Kenneth T. and Eileen L. Norris FoundationUNSPECIFIED
James S. McDonnell FoundationUNSPECIFIED
Caltech AssociatesUNSPECIFIED
University of ChicagoUNSPECIFIED
State of CaliforniaUNSPECIFIED
State of IllinoisUNSPECIFIED
State of MarylandUNSPECIFIED
CARMA partner universitiesUNSPECIFIED
W. M. Keck FoundationUNSPECIFIED
Subject Keywords:galaxies: high-redshift; galaxies: starburst; infrared: galaxies; submillimeter: galaxies
Record Number:CaltechAUTHORS:20140131-080059273
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20140131-080059273
Official Citation:HerMES: Candidate High-redshift Galaxies Discovered with Herschel/SPIRE C. Darren Dowell et al. 2014 ApJ 780 75
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:43598
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:31 Jan 2014 17:01
Last Modified:12 Jul 2019 22:00

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