A dataset provided by the European Space Agency

Name SDP_smadde01_3
Title The ISM in Low Metallicity Environments: Bridging the Gap Between Local Universe and Primordial Galaxies
URL

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DOI 10.5270/esa-gg4wam0
Author madden, s.
Description While much of what we have gleaned of the details of dust and gas properties and the processes of dust recycling and heating and cooling in galaxies has been limited to Galactic studies, with Herschel we will be able to explore these issues in low metallicity dwarf galaxies which are known by now to exhibit dust and gas properties different from more metal-rich galaxies. Because these objects are relatively nearby, it is possible to relate the observed variations in the SEDs to the actual physical phenomena occuring within the ISM of the galaxy, allowing the construction of a rich interpretative framework for unresolved, more distant galaxies in the early universe. Using the SPIRE and PACS instruments on Herschel, we propose to map the dust and gas in a 51 dwarf galaxies, sampling a broad metallicity range of 1-50 to 1-3 solar. These data, in conjunction with other ancillary data, will be used to construct the emission spectrum of the dust plus that of the gas in the most important cooling lines. The combination of these instruments onboard Herschel will provide the first opportunity to study the dust and gas in extremely low metallicity environments that have not yet experienced repeated recycling through the ISM. The interpretation of this data will open the door to comprehending primordial ISM conditions and star formation in the young universe.
Publication DustPedia: Multiwavelength photometry and imagery of 875 nearby galaxies in 42 ultraviolet-microwave bands . Clark C. J. R. et al. . Astronomy & Astrophysics, Volume 609, id.A37, 30 pp. . 609 . 10.1051\/0004-6361\/201731419 . 2018A&A...609A..37C ,
Using dust, gas and stellar mass-selected samples to probe dust sources and sinks in low-metallicity galaxies . De Vis P. et al. . Monthly Notices of the Royal Astronomical Society, Volume 471, Issue 2, p.1743-1765 . 471 . 10.1093\/mnras\/stx981 . 2017MNRAS.471.1743D ,
Herschel photometric observations of the nearby low metallicity irregular galaxy NGC 6822 . Galametz M. et al. . Astronomy and Astrophysics, Volume 518, id.L55, 6 pp. . 518 . 10.1051\/0004-6361\/201014604 . 2010A&A...518L..55G ,
An Overview of the Dwarf Galaxy Survey . Madden S. C. et al. . Publications of the Astronomical Society of the Pacific, Volume 125, Issue 928, pp. 600 (2013). . 125 . 10.1086\/671138 . 2013PASP..125..600M ,
Dust emissivity and absorption cross section in DustPedia late-type galaxies . Bianchi S. et al. . Astronomy and Astrophysics . null . null . 2019A&A...631A.102B ,
Diversity of dwarf galaxy IR-submm emission patterns: CLUES from hydrodynamical simulations . Santos-Santos Isabel M. E. et al. . Astronomy & Astrophysics, Volume 603, id.A4, 22 pp. . 603 . 10.1051\/0004-6361\/201629426 . 2017A&A...603A...4S ,
DustPedia: the relationships between stars, gas, and dust for galaxies residing in different environments . Davies J. I. et al. . Astronomy and Astrophysics . null . null...
Instrument PACS_PacsPhoto_largeScan, SPIRE_SpirePhoto_large
Temporal Coverage 2009-10-06T03:01:21Z/2009-11-22T19:55:09Z
Version SPG v14.2.0
Mission Description Herschel was launched on 14 May 2009! It is the fourth 'cornerstone' mission in the ESA science programme. With a 3.5 m Cassegrain telescope it is the largest space telescope ever launched. It is performing photometry and spectroscopy in approximately the 55-671 µm range, bridging the gap between earlier infrared space missions and groundbased facilities.
Creator Contact https://support.cosmos.esa.int/herschel/
Date Published 2010-01-01T19:10:33Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2010-01-01T19:10:33Z, SDP_smadde01_3, SPG v14.2.0. https://doi.org/10.5270/esa-gg4wam0