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  High-resolution synthetic UV–submm images for simulated Milky Way-type galaxies from the Auriga project

Kapoor, A. U., Camps, P., Baes, M., Trcka, A., Grand, R. J. J., van der Wel, A., et al. (2021). High-resolution synthetic UV–submm images for simulated Milky Way-type galaxies from the Auriga project. Monthly Notices of the Royal Astronomical Society, 506(4), 5703-5720. doi:10.1093/mnras/stab2043.

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High-resolution synthetic UV–submm images for simulated Milky Way-type galaxies from the Auriga project.pdf (beliebiger Volltext), 9MB
 
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 Urheber:
Kapoor, Anand Utsav, Autor
Camps, Peter, Autor
Baes, Maarten, Autor
Trcka, Ana, Autor
Grand, Robert J. J.1, Autor           
van der Wel, Arjen, Autor
Cortese, Luca, Autor
Looze, Ilse De, Autor
Barrientos, Daniela, Autor
Affiliations:
1Galaxy Formation, Cosmology, MPI for Astrophysics, Max Planck Society, ou_159878              

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 Zusammenfassung: We present redshift-zero synthetic observational data considering dust attenuation and dust emission for the 30 galaxies of the Auriga project, calculated with the skirt radiative transfer code. The post-processing procedure includes components for star-forming regions, stellar sources, and diffuse dust taking into account stochastic heating of dust grains. This allows us to obtain realistic high-resolution broad-band images and fluxes from ultraviolet (UV) to submillimetre (submm) wavelengths. For the diffuse dust component, we consider two mechanisms for assigning dust to gas cells in the simulation. In one case, only the densest or the coldest gas cells are allowed to have dust, while in the other case this condition is relaxed to allow a larger number of dust-containing cells. The latter approach yields galaxies with a larger radial dust extent and an enhanced dust presence in the interspiral regions. At a global scale, we compare Auriga galaxies with observations by deriving dust scaling relations using spectral energy distribution fitting. At a resolved scale, we make a multiwavelength morphological comparison with nine well-resolved spiral galaxies from the DustPedia observational data base. We find that for both dust assignment methods, although the Auriga galaxies show a good overall agreement with observational dust properties, they exhibit a slightly higher specific dust mass. The multiwavelength morphological analysis reveals a good agreement between the Auriga and the observed galaxies in the optical wavelengths. In the mid- and far-infrared wavelengths, Auriga galaxies appear smaller and more centrally concentrated in comparison to their observed counterparts. We publicly release the multi-observer images and fluxes in 50 commonly used broad-band filters.

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Sprache(n): eng - English
 Datum: 2021-07-19
 Publikationsstatus: Online veröffentlicht
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 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1093/mnras/stab2043
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Titel: Monthly Notices of the Royal Astronomical Society
  Kurztitel : Mon. Not. Roy. Astron. Soc.
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 506 (4) Artikelnummer: - Start- / Endseite: 5703 - 5720 Identifikator: ISSN: 0035-8711
ISSN: 1365-8711