An Overview of the Dwarf Galaxy Survey
By S. Madden, A. Rémy-Ruyer, M. Galametz, D. Cormier, V. Lebouteiller, F. Galliano, S. Hony, G. Bendo, Matthew W. L. Smith, M. Pohlen and 31 more. 2013
169 citations recorded by the source corpus.
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⊙, 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 = 4–3 to J = 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.
Subfields: Astronomy and Astrophysics
View Paper: https://www.semanticscholar.org/paper/0d02b0533e10ea3354da83c0957f3cd2e510bdd4
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Citations in the corpus
- The applicability of far-infrared fine-structure lines as star formation rate tracers over wide ranges of metallicities and galaxy types (2014, methodology): “, as tracers of the star formation activity in a sample of lowmetallicity dwarf galaxies from the Herschel Dwarf Galaxy Survey (Madden et al. 2013).”
- Gas-to-dust mass ratios in local galaxies over a 2 dex metallicity range (2013, methodology): “A31, page 2 of 22 A. Rémy-Ruyer et al.: Gas-to-dust mass ratios in local galaxies over a 2 dex metallicity range such as positions and distances can be found in Madden et al. (2013) for the DGS; Kennicutt et al. (2011) for KINGFISH; and Galametz et al. (2011) for the G11 sample.”
- Detection of the Far-infrared [O iii] and Dust Emission in a Galaxy at Redshift 8.312: Early Metal Enrichment in the Heart of the Reionization Era (2018, methodology): “…simulation of galaxy formation (Shimizu et al. 2014) by incorporating an [O III] emission line model as a function of metallicity calibrated by ISO, AKARI, and Herschel observations of local galaxies (Brauher et al. 2008; Kawada et al. 2011; Madden et al. 2012, 2013, see also Cormier et al. 2015).”
- The Herschel Dwarf Galaxy Survey - I. Properties of the low-metallicity ISM from PACS spectroscopy (2015, methodology): “…for Article number, page 5 of 30 A&A proofs: manuscript no. cormier_dgs_spectro Galactic extinction using the Schlegel et al. (1998) values provided by the NASA/IPAC Infrared Science Archive but not for internal dust attenuation, and converted from the magnitudes reported in Madden et al. (2013).”