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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
An overview of the dwarf galaxy survey
Publications of the Astronomical Society of the Pacific, Volume 125, No. 928, Year 2013
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Description
The Dwarf Galaxy Survey (DGS) program is studying low-metallicity galaxies using 230 hr of farinfrared (FIR) and submillimetre (submm) photometric and spectroscopic observations of the Herschel Space Observatory and draws from this a rich database of a wide range of wavelengths tracing the dust, gas and stars. This sample of 50 galaxies includes the largest metallicity range achievable in the local Universe including the lowest metallicity (Z) galaxies, 1=50 Zȯ, and spans four orders of magnitude in star formation rates. The survey is designed to get a handle on the physics of the interstellar medium (ISM) of low metallicity dwarf galaxies, especially their dust and gas properties and the ISM heating and cooling processes. The DGS produces PACS and SPIRE maps of low-metallicity galaxies observed at 70, 100, 160, 250, 350, and 500 μm with the highest sensitivity achievable to date in the FIR and submm. The FIR fine-structure lines, [CII] 158 μm, [OI] 63 μm, [OI] 145 μm, [OIII] 88 μm, [NIII] 57 μm, and [NII] 122 and 205 μm have also been observed with the aim of studying the gas cooling in the neutral and ionized phases. The SPIRE FTS observations include many CO lines (J 1/4 4-3 to J 1/4 13-12), [NII] 205 μm, and [CI] lines at 370 and 609 μm. This paper describes the sample selection and global properties of the galaxies and the observing strategy as well as the vast ancillary database available to complement the Herschel observations. The scientific potential of the full DGS survey is described with some example results included. © 2013. The Astronomical Society of the Pacific.
Authors & Co-Authors
Madden, Suzanne C.
France, Gif-sur-yvette
Institut de Recherche Sur Les Lois Fondamentales de L'univers
Ŕemy-Ruyer, Auŕelie
France, Gif-sur-yvette
Institut de Recherche Sur Les Lois Fondamentales de L'univers
Galametz, Maud
United Kingdom, Cambridge
Institute of Astronomy
Cormier, Diane
France, Gif-sur-yvette
Institut de Recherche Sur Les Lois Fondamentales de L'univers
Lebouteiller, Vianney
France, Gif-sur-yvette
Institut de Recherche Sur Les Lois Fondamentales de L'univers
Galliano, Frédéric
France, Gif-sur-yvette
Institut de Recherche Sur Les Lois Fondamentales de L'univers
Hony, Sacha
France, Gif-sur-yvette
Institut de Recherche Sur Les Lois Fondamentales de L'univers
Bendo, George J.
United Kingdom, Manchester
The University of Manchester
Smith, Matthew W.L.
United Kingdom, Cardiff
Cardiff University
Pohlen, Michael
United Kingdom, Cardiff
Cardiff University
Roussel, Hélène
France, Paris
Institut D’astrophysique de Paris
Sauvage, Marc
France, Gif-sur-yvette
Institut de Recherche Sur Les Lois Fondamentales de L'univers
Wu, Ronin
France, Gif-sur-yvette
Institut de Recherche Sur Les Lois Fondamentales de L'univers
Sturm, Eckhard
Germany, Garching Bei Munchen
Max Planck Institute for Extraterrestrial Physics
Poglitsch, Albrecht
Germany, Garching Bei Munchen
Max Planck Institute for Extraterrestrial Physics
Contursi, A.
Germany, Garching Bei Munchen
Max Planck Institute for Extraterrestrial Physics
Doublier, Vanessa
Germany, Garching Bei Munchen
Max Planck Institute for Extraterrestrial Physics
Baes, Maarten
Belgium, Ghent
Universiteit Gent
Barlow, M. J.
United Kingdom, London
University College London
Boselli, Alessandro
France, Marseille
Laboratoire D'astrophysique de Marseille
Boquien, Médéric
Germany, Garching Bei Munchen
Max Planck Institute for Extraterrestrial Physics
Carlson, L. R.
Netherlands, Leiden
Sterrewacht Leiden
Ciesla, Laure
France, Marseille
Laboratoire D'astrophysique de Marseille
Cooray, Asantha Roshan
United States, Boulder
University of Colorado Boulder
United States, Pasadena
California Institute of Technology
Cortese, Luca
Germany, Garching Bei Munchen
European Southern Observatory
de Looze, Ilse
Belgium, Ghent
Universiteit Gent
Irwin, Judith A.
Canada, Kingston
Queen’s University
Isaak, Kate G.
Netherlands, Noordwijk Aan Zee
Estec - European Space Research and Technology Centre
Kamenetzky, Julia R.
United States, Irvine
University of California, Irvine
Karczewski, Oskar Ł.
United Kingdom, London
University College London
Lu, Nanyao
United States, Pasadena
California Institute of Technology
MacHattie, J. A.
Canada, Kingston
Queen’s University
O'Halloran, Brian
United Kingdom, London
Imperial College London
Parkin, Tara J.
Canada, Hamilton
Mcmaster University
Rangwala, Naseem
United States, Irvine
University of California, Irvine
Schirm, Maximilien R.P.
Canada, Hamilton
Mcmaster University
Schulz, Bernhard
United States, Pasadena
California Institute of Technology
Spinoglio, L.
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Vaccari, Mattia
South Africa, Bellville
University of the Western Cape
Italy, Padua
Università Degli Studi Di Padova
Wilson, Christine D.
United Kingdom, London
Imperial College London
Wozniak, Hervé
France, Strasbourg
Université de Strasbourg
Statistics
Citations: 148
Authors: 41
Affiliations: 22
Identifiers
Doi:
10.1086/671138
Study Design
Cross Sectional Study
Study Approach
Quantitative