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Proceedings Paper

The cosmic infrared background experiment-2 (CIBER-2) for studying the near-infrared extragalactic background light
Author(s): Mai Shirahata; Toshiaki Arai; John Battle; James Bock; Asantha Cooray; Akito Enokuchi; Viktor Hristov; Yoshikazu Kanai; Min Gyu Kim; Phillip Korngut; Alicia Lanz; Dae-Hee Lee; Peter Mason; Toshio Matsumoto; Shuji Matsuura; Tracy Morford; Yosuke Ohnishi; Won-Kee Park; Kei Sano; Norihide Takeyama; Kohji Tsumura; Takehiko Wada; Shiang-Yu Wang; Michael Zemcov
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Paper Abstract

We present the current status of the Cosmic Infrared Background ExpeRiment-2 (CIBER-2) project, whose goal is to make a rocket-borne measurement of the near-infrared Extragalactic Background Light (EBL), under a collaboration with U.S.A., Japan, South Korea, and Taiwan. The EBL is the integrated light of all extragalactic sources of emission back to the early Universe. At near-infrared wavelengths, measurement of the EBL is a promising way to detect the diffuse light from the first collapsed structures at redshift z∼10, which are impossible to detect as individual sources. However, recently, the intra-halo light (IHL) model is advocated as the main contribution to the EBL, and our new result of the EBL fluctuation from CIBER-1 experiment is also supporting this model. In this model, EBL is contributed by accumulated light from stars in the dark halo regions of low- redshift (z<2) galaxies, those were tidally stripped by the interaction of satellite dwarf galaxies. Thus, in order to understand the origin of the EBL, both the spatial fluctuation observations with multiple wavelength bands and the absolute spectroscopic observations for the EBL are highly required. After the successful initial CIBER- 1 experiment, we are now developing a new instrument CIBER-2, which is comprised of a 28.5-cm aluminum telescope and three broad-band, wide-field imaging cameras. The three wide-field (2.3×2.3 degrees) imaging cameras use the 2K×2K HgCdTe HAWAII-2RG arrays, and cover the optical and near-infrared wavelength range of 0.5–0.9 μm, 1.0–1.4 μm and 1.5–2.0 μm, respectively. Combining a large area telescope with the high sensitivity detectors, CIBER-2 will be able to measure the spatial fluctuations in the EBL at much fainter levels than those detected in previous CIBER-1 experiment. Additionally, we will use a linear variable filter installed just above the detectors so that a measurement of the absolute spectrum of the EBL is also possible. In this paper, the scientific motivation and the expected performance for CIBER-2 will be presented. The detailed designs of the telescope and imaging cameras will also be discussed, including the designs of the mechanical, cryogenic, and electrical systems.

Paper Details

Date Published: 29 July 2016
PDF: 13 pages
Proc. SPIE 9904, Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave, 99044J (29 July 2016); doi: 10.1117/12.2229567
Show Author Affiliations
Mai Shirahata, Japan Aerospace Exploration Agency (Japan)
Toshiaki Arai, Japan Aerospace Exploration Agency (Japan)
Tohoku Univ. (Japan)
John Battle, California Institute of Technology (United States)
James Bock, California Institute of Technology (United States)
Jet Propulsion Lab. (United States)
Asantha Cooray, Univ. of California, Irvine (United States)
Akito Enokuchi, Genesia Corp. (Japan)
Viktor Hristov, California Institute of Technology (United States)
Yoshikazu Kanai, Genesia Corp. (Japan)
Min Gyu Kim, Korea Astronomy and Space Science Institute (Korea, Republic of)
Phillip Korngut, California Institute of Technology (United States)
Jet Propulsion Lab. (United States)
Alicia Lanz, California Institute of Technology (United States)
Dae-Hee Lee, Korea Astronomy and Space Science Institute (Korea, Republic of)
Peter Mason, California Institute of Technology (United States)
Toshio Matsumoto, Japan Aerospace Exploration Agency (Japan)
Institute of Astronomy and Astrophysics (Taiwan)
Shuji Matsuura, Kwansei Gakuin Univ. (Japan)
Japan Aerospace Exploration Agency (Japan)
Tracy Morford, California Institute of Technology (United States)
Yosuke Ohnishi, Tokyo Institute of Technology (Japan)
Won-Kee Park, Korea Astronomy and Space Science Institute (Korea, Republic of)
Kei Sano, The Univ. of Tokyo (Japan)
Norihide Takeyama, Genesia Corp. (Japan)
Kohji Tsumura, Tohoku Univ. (Japan)
Takehiko Wada, Japan Aerospace Exploration Agency (Japan)
Shiang-Yu Wang, Institute of Astronomy and Astrophysics (Taiwan)
Michael Zemcov, Rochester Institute of Technology (United States)
Jet Propulsion Lab. (United States)


Published in SPIE Proceedings Vol. 9904:
Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave
Howard A. MacEwen; Giovanni G. Fazio; Makenzie Lystrup; Natalie Batalha; Nicholas Siegler; Edward C. Tong, Editor(s)

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