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The IRX- beta relation on subgalactic scales in star-forming galaxies of the Herschel Reference Survey

Boquien, M ; Buat, V ; Boselli, A ; Baes, M ; Bendo, G J ; Ciesla, L ; Cooray, A ; Cortese, L ; Eales, S ; Gavazzi, G ; Gomez, H L ; Lebouteiller, V ; Pappalardo, C ; Pohlen, M ; Smith, M W L ; Spinoglio, L

Astronomy and astrophysics (Berlin), 2012-03, Vol.539, p.1-1 [Periódico revisado por pares]

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  • Título:
    The IRX- beta relation on subgalactic scales in star-forming galaxies of the Herschel Reference Survey
  • Autor: Boquien, M ; Buat, V ; Boselli, A ; Baes, M ; Bendo, G J ; Ciesla, L ; Cooray, A ; Cortese, L ; Eales, S ; Gavazzi, G ; Gomez, H L ; Lebouteiller, V ; Pappalardo, C ; Pohlen, M ; Smith, M W L ; Spinoglio, L
  • É parte de: Astronomy and astrophysics (Berlin), 2012-03, Vol.539, p.1-1
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    content type line 23
    ObjectType-Feature-2
  • Descrição: It is still not understood why star-forming galaxies deviate from the ultraviolet colour-attenuation relation of starburst galaxies. Previous work and models hint that the role of the shape of the attenuation curve and the age of stellar populations play an important role. In this paper, the authors aim at understanding the fundamental reasons for this deviation. They have used the CIGALE spectral energy distribution fitting code to model the far ultraviolet to the far infrared emission of a set of 7 reasonably face-on spiral galaxies from the Herschel Reference Survey on a pixel-by-pixel basis. They explored the influence of a wide range of physical parameters to quantify their influence and impact on any accurate determination of the attenuation from the ultraviolet colour and to discover why normal galaxies do not follow the same relation as starburst galaxies. They have found that the deviation from the starburst relation can be explained best by intrinsic ultraviolet colour differences between different regions in galaxies.
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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