Extinction-free Census of AGNs in the $AKARI$/IRC North Ecliptic Pole Field from 23-band Infrared Photometry from Space Telescopes - Aix-Marseille Université Accéder directement au contenu
Article Dans Une Revue Monthly Notices of the Royal Astronomical Society Année : 2020

Extinction-free Census of AGNs in the $AKARI$/IRC North Ecliptic Pole Field from 23-band Infrared Photometry from Space Telescopes

Ting-Wen Wang
Tomotsugu Goto
  • Fonction : Auteur
Seong Jin Kim
Tetsuya Hashimoto
Denis Burgarella
Yoshiki Toba
Hyunjin Shim
  • Fonction : Auteur
Takamitsu Miyaji
  • Fonction : Auteur
Ho Seong Hwang
Woong-Seob Jeong
  • Fonction : Auteur
Eunbin Kim
Hiroyuki Ikeda
  • Fonction : Auteur
Chris Pearson
Matthew Malkan
  • Fonction : Auteur
Nagisa Oi
Daryl Joe D. Santos
  • Fonction : Auteur
Agnieszka Pollo
  • Fonction : Auteur
Simon C.-C. Ho
  • Fonction : Auteur
Hideo Matsuhara
  • Fonction : Auteur
Alvina Y.L. On
  • Fonction : Auteur
Helen K. Kim
  • Fonction : Auteur
Tiger Yu-Yang Hsiao
  • Fonction : Auteur
Ting-Chi Huang
  • Fonction : Auteur

Résumé

In order to understand the interaction between the central black hole and the whole galaxy or their co-evolution history along with cosmic time, a complete census of active galactic nucleus (AGN) is crucial. However, AGNs are often missed in optical, UV, and soft X-ray observations since they could be obscured by gas and dust. A mid-infrared (MIR) survey supported by multiwavelength data is one of the best ways to find obscured AGN activities because it suffers less from extinction. Previous large IR photometric surveys, e.g. Wide field Infrared Survey Explorer and Spitzer, have gaps between the MIR filters. Therefore, star-forming galaxy-AGN diagnostics in the MIR were limited. The AKARI satellite has a unique continuous nine-band filter coverage in the near to MIR wavelengths. In this work, we take advantage of the state-of-the-art spectral energy distribution modelling software, cigale, to find AGNs in MIR. We found 126 AGNs in the North Ecliptic Pole-Wide field with this method. We also investigate the energy released from the AGN as a fraction of the total IR luminosity of a galaxy. We found that the AGN contribution is larger at higher redshifts for a given IR luminosity. With the upcoming deep IR surveys, e.g. JWST, we expect to find more AGNs with our method.
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Dates et versions

hal-02999513 , version 1 (23-05-2024)

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Ting-Wen Wang, Tomotsugu Goto, Seong Jin Kim, Tetsuya Hashimoto, Denis Burgarella, et al.. Extinction-free Census of AGNs in the $AKARI$/IRC North Ecliptic Pole Field from 23-band Infrared Photometry from Space Telescopes. Monthly Notices of the Royal Astronomical Society, 2020, 499 (3), pp.4068-4081. ⟨10.1093/mnras/staa2988⟩. ⟨hal-02999513⟩
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