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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 Z., 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 mu m with the highest sensitivity achievable to date in the FIR and submm. The FIR fine-structure lines, [CII] 158 mu m, [OI] 63 mu m, [OI] 145 mu m, [OIII] 88 mu m, [NIII] 57 mu m, and [NII] 122 and 205 mu m 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 mu m, and [CI] lines at 370 and 609 mu m. 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.
Keywords
AROMATIC-HYDROCARBON EMISSION, HUBBLE-SPACE-TELESCOPE, ASTROPHYSICAL DUST EMISSION, LOW-METALLICITY ENVIRONMENTS, NEUTRAL HYDROGEN OBSERVATIONS, 158 MU-M, H-II REGIONS, STAR-FORMING GALAXIES, SPECTRAL ENERGY-DISTRIBUTION, BLUE COMPACT GALAXIES

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Citation

Please use this url to cite or link to this publication:

Chicago
Madden, SC, A Rémy-Ruyer, M Galametz, D Cormier, V Lebouteiller, F Galliano, S Hony, et al. 2013. “An Overview of the Dwarf Galaxy Survey.” Publications of the Astronomical Society of the Pacific 125 (928): 600–635.
APA
Madden, S., Rémy-Ruyer, A., Galametz, M., Cormier, D., Lebouteiller, V., Galliano, F., Hony, S., et al. (2013). An overview of the Dwarf Galaxy survey. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 125(928), 600–635.
Vancouver
1.
Madden S, Rémy-Ruyer A, Galametz M, Cormier D, Lebouteiller V, Galliano F, et al. An overview of the Dwarf Galaxy survey. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC. 2013;125(928):600–35.
MLA
Madden, SC, A Rémy-Ruyer, M Galametz, et al. “An Overview of the Dwarf Galaxy Survey.” PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC 125.928 (2013): 600–635. Print.
@article{4385523,
  abstract     = {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 Z., 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 mu m with the highest sensitivity achievable to date in the FIR and submm. The FIR fine-structure lines, [CII] 158 mu m, [OI] 63 mu m, [OI] 145 mu m, [OIII] 88 mu m, [NIII] 57 mu m, and [NII] 122 and 205 mu m 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 mu m, and [CI] lines at 370 and 609 mu m. 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.},
  author       = {Madden, SC and R{\'e}my-Ruyer, A and Galametz, M and Cormier, D and Lebouteiller, V and Galliano, F and Hony, S and Bendo, GJ and Smith, MWL and Pohlen, M and Roussel, H and Sauvage, M and Wu, R and Sturm, E and Poglitsch, A and Contursi, A and Doublier, V and Baes, Maarten and Barlow, MJ and Boselli, A and Boquien, M and Carlson, LR and Ciesla, L and Cooray, A and Cortese, L and De Looze, Ilse and Irwin, JA and Isaak, K and Kamenetzky, J and Karczewski, O\unmatched{0141} and Lu, N and MacHattie, JA and O'Halloran, B and Parkin, TJ and Rangwala, N and Schirm, MRP and Schulz, B and Spinoglio, L and Vaccari, M and Wilson, CD and Wozniak, H},
  issn         = {0004-6280},
  journal      = {PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC},
  keyword      = {AROMATIC-HYDROCARBON EMISSION,HUBBLE-SPACE-TELESCOPE,ASTROPHYSICAL DUST EMISSION,LOW-METALLICITY ENVIRONMENTS,NEUTRAL HYDROGEN OBSERVATIONS,158 MU-M,H-II REGIONS,STAR-FORMING GALAXIES,SPECTRAL ENERGY-DISTRIBUTION,BLUE COMPACT GALAXIES},
  language     = {eng},
  number       = {928},
  pages        = {600--635},
  title        = {An overview of the Dwarf Galaxy survey},
  url          = {http://dx.doi.org/10.1086/671138},
  volume       = {125},
  year         = {2013},
}

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