NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-17 T00:07:14 PDT
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For refcode 2013PASP..125..600M:
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Copyright by Astronomical Society of the Pacific. Reproduced by permission
2013PASP..125..600M An Overview of the Dwarf Galaxy Survey Madden, S. C.; Remy-Ruyer, A.; Galametz, M.; Cormier, D.; Lebouteiller, V.; Galliano, F.; Hony, S.; Bendo, G. J.; Smith, M. W. L.; Pohlen, M.; Roussel, H.; Sauvage, M.; Wu, R.; Sturm, E.; Poglitsch, A.; Contursi, A.; Doublier, V.; Baes, M.; Barlow, M. J.; Boselli, A.; Boquien, M.; Carlson, L. R.; Ciesla, L.; Cooray, A.; Cortese, L.; de Looze, I.; Irwin, J. A.; Isaak, K.; Kamenetzky, J.; Karczewski, O. L.; Lu, N.; MacHattie, J. A.; O"Halloran, B.; Parkin, T. J.; Rangwala, N.; Schirm, M. R. P.; Schulz, B.; Spinoglio, L.; Vaccari, M.; Wilson, C. D.; Wozniak, H. Abstract. The Dwarf Galaxy Survey (DGS) program is studying low-metallicity galaxies using 230 hr of far-infrared (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 Z_sun_, 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 micron with the highest sensitivity achievable to date in the FIR and submm. The FIR fine-structure lines, [CII] 158 micron, [OI] 63 micron, [OI] 145 micron, [OIII] 88 micron, [NIII] 57 micron, and [NII] 122 and 205 micron 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=4-3 to J=13-12), [NII] 205 micron, and [CI] lines at 370 and 609 micron. 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. Key words: Galaxies
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