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The Korean Astronomical Society (한국천문학회)
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NEP-AKARI: EVOLUTION WITH REDSHIFT OF DUST ATTENUATION IN 8 ㎛ SELECTED GALAXIES

  • Buat, V. (Aix-Marseille Universite, CNRS, LAM (Laboratoire d'Astrophysique de Marseille)) ;
  • Oi, N. (Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency) ;
  • Burgarella, D. (Aix-Marseille Universite, CNRS, LAM (Laboratoire d'Astrophysique de Marseille)) ;
  • Malek, K. (Division of Particle and Astrophysical Science, Nagoya University) ;
  • Matsuhara, H. (Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency) ;
  • Murata, K. (Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency) ;
  • Serjeant, S. (The Open University) ;
  • Takeuchi, T.T. (Graduate School of Science, Nagoya University) ;
  • Malkan, M. (University of California) ;
  • Pearson, C. (Graduate School of Science, Nagoya University) ;
  • Wada, T. (Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency)
  • Received : 2015.08.31
  • Accepted : 2016.10.20
  • Published : 2017.03.31
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Abstract

We built a $8{\mu}m$ selected sample of galaxies in the NEP-AKARI field by defining 4 redshift bins with the four AKARI bands at 11, 15, 18 and 24 microns (0.15 < z < 0.49, 0.75 < z < 1.34, 1.34 < z < 1.7 and 1.7 < z < 2.05). Our sample contains 4079 sources, 599 are securely detected with Herschel/PACS. Also adding ultraviolet (UV) data from GALEX, we fit the spectral energy distributions using the physically motivated code CIGALE to extract the star formation rate, stellar mass, dust attenuation and the AGN contribution to the total infrared luminosity ($L_{IR}$). We discuss the impact of the adopted attenuation curve and that of the wavelength coverage to estimate these physical parameters. We focus on galaxies with a luminosity close the characteristic $L^*_{IR}$ in the different redshift bins to study the evolution with redshift of the dust attenuation in these galaxies.

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References

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