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Hi-GAL: the Herschel infrared Galactic Plane Survey

Hi-GAL: the Herschel infrared Galactic Plane Survey. The inner Milky Way.

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Hi-GAL: the Herschel infrared Galactic Plane Survey

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  1. Hi-GAL: the Herschel infrared Galactic Plane Survey The inner Milky Way Hi-GAL is the Herschel Open-Time Key-Project that observes the Galactic Plane in 5 continuum bands between 70 and 500mm using the PACS and SPIRE imaging photometers, to deliver a thermal map of the Milky Way. The area shown is only a portion of the entire Hi-GAL survey area (520 square degrees). Hi-GAL will obtain the census, temperature, luminosity, mass and Spectral Energy Distribution of star forming regions and cold ISM structures in all the environments of the Galactic Ecosystem, at unprecedented resolutions, and at all scales from massive objects in protoclusters to the full spiral arm. This dataset should enable decisive steps toward the formulation of a global predictive model of the ISM/star formation cyclic transformation process which is the engine responsible for most of the energy budget in normal star-forming galaxies. Hi-GAL will also deliver a dataset of extraordinary legacy value for decades to come, with a strong potential of systematic and serendipitous science in a wide range of astronomical fields. l = 45° l = 30° l = 0° l = 345° l = 15° Herschel PACS/SPIRE composite mosaic of the inner Milky Way covering +47°< l <-56° in longitude and -1°< b <+1° in latitude. The color coding of the images (blue for PACS 70mm, green for PACS 160mm and red for SPIRE 350mm bands) essentially reflects the temperature of the dust. Warm dust (T≥40K) will appear blue, while colder dust (T≤20K) will appear red. l = 330° l = 315° The Hi-GAL Team Institutes [PI: S. Molinari, INAF-IFSI Rome] Italy: INAF-IFSI Rome, Universitàdi Roma “Tor Vergata”, Universitàdi Roma “La Sapienza”, ASI-ASDC (Frascati), INAF-Oss. Arcetri, INAF-Oss. Catania, Università del Salento. USA: Caltech-SSC-IPAC (Pasadena), University of Colorado (Boulder), JPL (Pasadena). UK: STFC-RAL (Chilton), University of Cardiff, Liverpool John Moores University, UCL (London), University of Hertsfordshire, University of Leeds, University of Manchester, University of Exeter. France: CNRS-IRAP (Toulouse), OAMP (Marseille), IAS (Orsay), CEA-SAp (Saclay). Canada: University of Toronto, University of Calgary, Université Laval (Montreal). Germany: MPIfR (Bonn), MPE (Garching), MPIK (Heidelberg). Australia: UNSW (Sidney). Japan: Nagoya University. China: NAO-CAS (Beijing) . ESO-HQ (Munich). ESA-ESTEC(Noordwijk). ESA-ESAC(Madrid) Hi-GAL data processing is made possible thanks to funding from ASI-AgenziaSpazialeItaliana Herschel is an ESA space observatory with important participation from NASA The PACS and SPIRE scientific instruments have been developed by Consortia led by A. Poglitsch (MPE-Garching) and M. Griffin (University of Cardiff)

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