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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
Green Bank Telescope Zpectrometer CO(1-0) observations of the strongly lensed submillimeter galaxies From the Herschel ATLAS
Astrophysical Journal Letters, Volume 726, No. 2 PART II, Year 2011
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Description
The Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS) has uncovered a population of strongly lensed submillimeter galaxies (SMGs). The Zpectrometer instrument on the Green Bank Telescope (GBT) was used to measure the redshifts and constrain the masses of the cold molecular gas reservoirs for two candidate highredshift lensed sources. We derive CO(1-0) redshifts of z = 3.042 ± 0.001 and z = 2.625 ± 0.001, and measure molecular gas masses of (1-3) ×1010M⊙, corrected for lens amplification and assuming a conversion factor of α = 0.8 M ⊙ (Kkm s-1 pc2)-1. We find typical L(IR)/L'(CO) ratios of 120 ±40 and 140±50L ⊙ (Kkm s-1 pc2)-1, which are consistent with those found for local ultraluminous infrared galaxies (ULIRGs) and other high-redshift SMGs. From analysis of published data, we find no evidence for enhanced L(IR)/L'(CO(1-0)) ratios for the SMG population in comparison to local ULIRGs. The GBT results highlight the power of using the CO lines to derive blind redshifts, which is challenging for the SMGs at optical wavelengths given their high obscuration. © 2011. The American Astronomical Society. All rights reserved. Printed in the U.S.A.
Authors & Co-Authors
Frayer, David T.
United States, Charlottesville
National Radio Astronomy Observatory
Harris, Andrew I.
United States, College Park
University of Maryland, College Park
Ivison, Robert J.
United Kingdom, Edinburgh
Royal Observatory
United Kingdom, Edinburgh
University of Edinburgh, Institute for Astronomy
Smail, Ian R.
United Kingdom, Durham
Durham University
Negrello, Mattia
United Kingdom, Milton Keynes
The Open University
Maddalena, R. J.
United States, Charlottesville
National Radio Astronomy Observatory
Aretxaga, Itziar
Mexico, Puebla
Instituto Nacional de Astrofisica Optica y Electronica
Baes, Maarten
Belgium, Ghent
Universiteit Gent
Birkinshaw, Mark
United Kingdom, Bristol
University of Bristol
Bonfield, David G.
United Kingdom, Hatfield
University of Hertfordshire
Burgarella, Denis
France, Marseille
Laboratoire D'astrophysique de Marseille
Buttiglione, Sara
Italy, Padua
Osservatorio Astronomico Di Padova
Cava, Antonio
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Clements, David L.
United Kingdom, London
Imperial College London
Cooray, Asantha Roshan
United States, Irvine
University of California, Irvine
Dannerbauer, Helmut
France, Gif-sur-yvette
Astrophysique, Instrumentation et Modélisation de Paris-saclay
Dariush, Aliakbar A.
United Kingdom, Cardiff
Cardiff University
de Zotti, Gianfranco
Italy, Padua
Osservatorio Astronomico Di Padova
Italy, Trieste
Scuola Internazionale Superiore Di Studi Avanzati
James S. Dunlop, James S.
United Kingdom, Edinburgh
University of Edinburgh, Institute for Astronomy
Dunne, Loretta
United Kingdom, Nottingham
University of Nottingham
Dye, S.
United Kingdom, Cardiff
Cardiff University
Eales, Stephen A.
United Kingdom, Cardiff
Cardiff University
Fritz, Jacopo
Belgium, Ghent
Universiteit Gent
Gonzalez-Nuevo, J.
Italy, Trieste
Scuola Internazionale Superiore Di Studi Avanzati
Herranz, Diego
Spain, Santander
Csic-uc - Instituto de Física de Cantabria Ifca
Hopwood, Rosalind H.B.
United Kingdom, Milton Keynes
The Open University
Hughes, David Handel
Mexico, Puebla
Instituto Nacional de Astrofisica Optica y Electronica
Ibar, E.
United Kingdom, Edinburgh
Royal Observatory
Jarvis, Matthew J.
United Kingdom, Hatfield
University of Hertfordshire
Lagache, Guilaine
France, Orsay
Institut D'astrophysique Spatiale
Leeuw, Lerothodi L.
United States, Mountain View
Seti Institute
South Africa, Johannesburg
University of Johannesburg
López-Caniego, Marcos
Spain, Santander
Csic-uc - Instituto de Física de Cantabria Ifca
Maddox, Steve J.
United Kingdom, Nottingham
University of Nottingham
Michałlowski, M. J.
United Kingdom, Edinburgh
University of Edinburgh, Institute for Astronomy
Omont, Alain A.
France, Paris
Institut D’astrophysique de Paris
Pohlen, Michael
United Kingdom, Cardiff
Cardiff University
Rigby, Emma E.
United Kingdom, Nottingham
University of Nottingham
Rodighiero, Giulia
Italy, Padua
Università Degli Studi Di Padova
Scott, Douglas J.
Canada, Vancouver
The University of British Columbia
Serjeant, Stephen B.G.
United Kingdom, Milton Keynes
The Open University
Smith, Daniel James B.
United Kingdom, Nottingham
University of Nottingham
Swinbank, A. Mark
United Kingdom, Durham
Durham University
Temi, Pasquale
United States, Moffett Field
Nasa Ames Research Center
Thompson, Mark A.
United Kingdom, Hatfield
University of Hertfordshire
Valtchanov, Ivan
Spain, Madrid
European Space Astronomy Centre
van der Werf, Paul P.
United Kingdom, Edinburgh
University of Edinburgh, Institute for Astronomy
Netherlands, Leiden
Sterrewacht Leiden
Verma, Aprajita
United Kingdom, Oxford
University of Oxford
Statistics
Citations: 56
Authors: 47
Affiliations: 31
Identifiers
Doi:
10.1088/2041-8205/726/2/L22
ISSN:
20418205
e-ISSN:
20418213
Research Areas
Disability
Study Design
Cross Sectional Study
Study Approach
Quantitative