High-z gamma-ray bursts for unraveling the dark ages mission HiZ-GUNDAM

Daisuke Yonetoku, Tatehiro Mihara, Tatsuya Sawano, Hirokazu Ikeda, Atsushi Harayama, Shunsuke Takata, Kazuki Yoshida, Hiroki Seta, Asuka Toyanago, Yasuaki Kagawa, Kentaro Kawai, Nobuyuki Kawai, Takanori Sakamoto, Motoko Serino, Shunsuke Kurosawa, Shuichi Gunji, Toru Tanimori, Toshio Murakami, Yoichi Yatsu, Kazutaka YamaokaAtsumasa Yoshida, Koji Kawabata, Toshio Matsumoto, Koji Tsumura, Shuji Matsuura, Mai Shirahata, Hirofumi Okita, Kensi Yanagisawa, Michitoshi Yoshida, Kentaro Motohara

Research output: Chapter in Book/Report/Conference proceedingConference contribution

21 Citations (Scopus)


We are now investigating and studying a small satellite mission HiZ-GUNDAM for future observation of gamma-ray bursts (GRBs). The mission concept is to probe the end of dark ages and the dawn of formation of astronomical objects, i.e. the physical condition of early universe beyond the redshift z > 7. We will consider two kinds of mission payloads, (1) wide field X-ray imaging detectors for GRB discovery, and (2) a near infrared telescope with 30 cm in diameter to select the high-z GRB candidates effectively. In this paper, we explain some requirements to promote the GRB cosmology based on the past observations, and also introduce the mission concept of HiZ-GUNDAM and basic development of X-ray imaging detectors.

Original languageEnglish
Title of host publicationSpace Telescopes and Instrumentation 2014
Subtitle of host publicationUltraviolet to Gamma Ray
EditorsTadayuki Takahashi, Jan-Willem A. den Herder, Mark Bautz
ISBN (Electronic)9780819496126
Publication statusPublished - 2014
EventSpace Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray - Montreal, Canada
Duration: 2014 Jun 222014 Jun 26

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceSpace Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray


  • ASIC
  • X-ray
  • early universe
  • gamma-ray burst
  • imaging
  • near infrared
  • satellite

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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