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The Korean Astronomical Society (한국천문학회)
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A COSMOLOGICAL PAH SURVEY WITH SPICA

  • Wada, Takehiko (Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency) ;
  • Egami, Eiichi (Steward Observatory, University of Arizona) ;
  • Fujishiro, Naofumi (Koyama Astronomical Observatory, Kyoto Sangyo University) ;
  • Goto, Tomotsugu (National Tsing Hua University) ;
  • Imanishi, Masatoshi (Subaru Telescope) ;
  • Inami, Hanae (CRAL, Observatoire de Lyon) ;
  • Ishihara, Daisuke (Graduate School of Science, Nagoya University) ;
  • Kaneda, Hidehiro (Graduate School of Science, Nagoya University) ;
  • Kohno, Kotaro (Institute of Astronomy, School of Science, the University of Tokyo) ;
  • Koyama, Yusei (Subaru Telescope) ;
  • Matsuhara, Hideo (Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency) ;
  • Matsuura, Shuji (Department of Physics, School of Science and Technology, Kwansei Gakuin University) ;
  • Nagao, Tohru (Research Center for Space and Cosmic Evolution, Ehime University) ;
  • Ohyama, Youichi (Institute of Astronomy and Astrophysics, Academia Sinica) ;
  • Onaka, Takashi (Department of Astronomy, Graduate School of Science, the University of Tokyo) ;
  • Oyabu, Shinki (Graduate School of Science, Nagoya University) ;
  • Pearson, Chiris (RAL Space, CCLRC Rutherford Appleton Laboratory) ;
  • Sakon, Itsuki (Institute of Astronomy and Astrophysics, Academia Sinica) ;
  • Takeuchi, Tsutomu T. (Graduate School of Science, Nagoya University) ;
  • Tomita, Keisuke (Graduate School of Science, Nagoya University) ;
  • Yamada, Toru (Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency) ;
  • Yamagishi, Mitsuhosi (Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency)
  • Received : 2015.07.20
  • Accepted : 2016.10.27
  • Published : 2017.03.31
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Abstract

We propose a cosmological survey to probe star formation and nuclear activity in galaxies at redshifts of z=2-4 by polycyclic aromatic hydrocarbon (PAH) features using the SPICA mid-infrared instrument (SMI) with a spectral resolution of R=20. We will cover a wavelength range of $20-36{\mu}$ that corresponds to z=2-4 for the PAH features (11.3, 7.7, and $6.2{\mu}$). The sensitivity will be $1{\times}10^{-19}W/m^2(5{\sigma})$ in case of a reference survey that covers 4 arcmin2 field in a one-hour observation. It corresponds to $L_{IR}=2{\times}10^{11}L_{\odot}$ at z=3 and will give us more than 10000 galaxies in a 450 hour survey.

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References

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