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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
The JCMT Nearby Galaxies Legacy Survey - VIII. CO data and the L
CO(3-2)
-L
FIR
correlation in the SINGS sample
Monthly Notices of the Royal Astronomical Society, Volume 424, No. 4, Year 2012
Notification
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Description
The James Clerk Maxwell Telescope Nearby Galaxies Legacy Survey (NGLS) comprises an Hi-selected sample of 155 galaxies spanning all morphological types with distances less than 25Mpc. We describe the scientific goals of the survey, the sample selection and the observing strategy. We also present an atlas and analysis of the CO J=3 - 2 maps for the 47 galaxies in the NGLS which are also part of the Spitzer Infrared Nearby Galaxies Survey. We find a wide range of molecular gas mass fractions in the galaxies in this sample and explore the correlation of the far-infrared luminosity, which traces star formation, with the CO luminosity, which traces the molecular gas mass. By comparing the NGLS data with merging galaxies at low and high redshift, which have also been observed in the CO J=3 - 2 line, we show that the correlation of far-infrared and CO luminosity shows a significant trend with luminosity. This trend is consistent with a molecular gas depletion time which is more than an order of magnitude faster in the merger galaxies than in nearby normal galaxies. We also find a strong correlation of the LFIR/LCO(3-2) ratio with the atomic-to-molecular gas mass ratio. This correlation suggests that some of the far-infrared emission originates from dust associated with atomic gas and that its contribution is particularly important in galaxies where most of the gas is in the atomic phase. © 2012 The Authors Monthly Notices of the Royal Astronomical Society © 2012 RAS.
Authors & Co-Authors
Wilson, Christine D.
Canada, Hamilton
Mcmaster University, Faculty of Science
Warren, Bradley E.
Canada, Hamilton
Mcmaster University, Faculty of Science
Australia, Perth
The University of Western Australia
Israël, Frank P.
Netherlands, Leiden
Sterrewacht Leiden
Serjeant, Stephen B.G.
United Kingdom, Milton Keynes
The Open University
Attewell, D.
Canada, Hamilton
Mcmaster University, Faculty of Science
Bendo, George J.
United Kingdom, Manchester
The University of Manchester
Butner, Harold M.
United States, Harrisonburg
James Madison University
Chanial, Pierre F.
France, Gif-sur-yvette
Astrophysique, Instrumentation et Modélisation de Paris-saclay
Clements, David L.
United Kingdom, London
Imperial College London
Golding, J.
Canada, Hamilton
Mcmaster University, Faculty of Science
Heesen, Volker
United Kingdom, Hatfield
University of Hertfordshire
Irwin, Judith A.
Canada, Kingston
Queen’s University
Leech, Jamie
United Kingdom, Oxford
University of Oxford
Matthews, Henry E.
Canada, Ottawa
National Research Council Canada
Mühle, Stefanie
Netherlands, Dwingeloo
Joint Institute for Vlbi in Europe
Mortier, Angela M.J.
United Kingdom, Edinburgh
University of Edinburgh, Institute for Astronomy
Petitpas, Glen R.
United States, Cambridge
Harvard-smithsonian Center for Astrophysics
Sánchez-Gallego, José Ramón
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Spain, San Cristobal de la Laguna
Universidad de la Laguna
Sinukoff, E.
Canada, Hamilton
Mcmaster University, Faculty of Science
Shorten, K.
Canada, Hamilton
Mcmaster University, Faculty of Science
Tan, Boon Kok
United Kingdom, Oxford
University of Oxford
Tilanus, Remo P.J.
United States, Honolulu
University Hawaii Institute for Astronomy
Netherlands, The Hague
Nederlandse Organisatie Voor Wetenschappelijk Onderzoek
Usero, Antonio
Spain, Madrid
Oan-ign
Vaccari, Mattia
Italy, Padua
Università Degli Studi Di Padova
South Africa, Bellville
University of the Western Cape
Wiegert, Theresa
Canada, Winnipeg
University of Manitoba
Zhu, Ming
China, Beijing
National Astronomical Observatories Chinese Academy of Sciences
Alexander, David M.
United Kingdom, Durham
Durham University
Paul Alexander, Paul
United Kingdom, Cambridge
Department of Physics
United Kingdom, Cambridge
University of Cambridge
Azimlu, M.
United States, Cambridge
Harvard-smithsonian Center for Astrophysics
Canada, London
Western University
Barmby, Pauline
Canada, London
Western University
Brar, R.
Canada, Kingston
Queen’s University
Bridge, Carrie R.
United States, Pasadena
California Institute of Technology
Brinks, Elias
United Kingdom, Hatfield
University of Hertfordshire
Brooks, S.
Canada, Hamilton
Mcmaster University, Faculty of Science
Coppin, Kristen E.K.
Canada, Montreal
Université Mcgill
Côté, Stéphanie
Canada, Ottawa
National Research Council Canada
Côté, P.
Canada, Ottawa
National Research Council Canada
Courteau, Stéphane
Canada, Kingston
Queen’s University
Davies, Jonathan I.
United States, Pasadena
California Institute of Technology
Eales, Stephen A.
United Kingdom, Cardiff
Cardiff University
Fich, Michael
Canada, Waterloo
University of Waterloo
Hudson, Michael J.
Canada, Waterloo
University of Waterloo
Hughes, David H.
Mexico, Puebla
Instituto Nacional de Astrofisica Optica y Electronica
Ivison, Robert J.
United Kingdom, Edinburgh
Royal Observatory
United Kingdom, Edinburgh
University of Edinburgh, Institute for Astronomy
Knapen, Johan H.
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Spain, San Cristobal de la Laguna
Universidad de la Laguna
Page, Mathew J.
United Kingdom, London
Imperial College London
Parkin, Tara J.
Canada, Hamilton
Mcmaster University, Faculty of Science
Rigopoulou, Dimitra
United Kingdom, Oxford
University of Oxford
United Kingdom, Didcot
Ral Space
Rosolowsky, Erik W.
Canada, Kelowna
University of British Columbia Okanagan
Seaquist, E. R.
Canada, Toronto
University of Toronto
Spekkens, Kristine
Canada, Kingston
Royal Military College of Canada
Tanvir, Nial R.
United Kingdom, Leicester
University of Leicester
van der Hülst, Jan M.
Netherlands, Groningen
Kapteyn Instituut
van der Werf, Paul P.
Netherlands, Leiden
Sterrewacht Leiden
Vlahakis, Catherine
Chile, Santiago
Atacama Large Millimeter-submillimeter Array
Webb, Tracy M.A.
Canada, Montreal
Université Mcgill
Weferling, Bernd
United States, Honolulu
University Hawaii Institute for Astronomy
White, Glenn J.
United Kingdom, Milton Keynes
The Open University
Canada, Kelowna
University of British Columbia Okanagan
Statistics
Citations: 58
Authors: 58
Affiliations: 41
Identifiers
Doi:
10.1111/j.1365-2966.2012.21453.x
ISSN:
00358711
e-ISSN:
13652966
Research Areas
Environmental
Study Design
Cross Sectional Study
Study Approach
Quantitative