SPICA Distant Cluster Survey: Unveiling the Dust-Obscured Star Formation Triggered by Young Cluster Environments

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説明

SPICA Science Conference from Exoplanets to Distant Galaxies: SPICA's New Window on the Cool Universe (June 18-21, 2013. Ito Hall, the University of Tokyo), Bunkyou-ku, Tokyo, Japan

We present the results of our star-forming galaxy survey of distant clusters of galaxies using Subaru (H ) and AKARI (MIR). By comparing the H and MIR data, we revealed that dust-obscured star-forming galaxies are most preferentially located in the cluster outskirts at z approximately 1. We propose to extend this H - and IR-based environmental study to higher redshifts, but a problem so far is that the existing MIR-FIR surveys always suffer from their limited depths. We can overcome this problems with the wide-field mid-infrared (MIR) camera on-board SPICA (5′FoV), which will allow us an efficient, and extremely deep MIR survey of distant clusters. In particular, the expected high sensitivity of SPICA at 20-40 μm regime promotes us to extend IR galaxy survey out to z = 2-4 (i.e. the “peak epoch” of galaxy evolution) based on their rest-frame 8 μm feature. We provide a quick overview of our recent progress with the MAHALO-Subaru collaboration, and then discuss how significantly SPICA can improve our understanding of the environmental effects on galaxy evolution in the early universe.

形態: カラー図版あり

Physical characteristics: Original contains color illustrations

資料番号: AA1730027031

レポート番号: JAXA-SP-17-010E

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詳細情報 詳細情報について

  • CRID
    1050292561248503040
  • NII論文ID
    120006827238
  • ISSN
    24332232
  • Web Site
    http://id.nii.ac.jp/1696/00003002/
  • 本文言語コード
    en
  • 資料種別
    conference paper
  • データソース種別
    • IRDB
    • CiNii Articles

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