21 September 2012 WISH for deep and wide NIR surveys
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Abstract
WISH, Wide-field Imaging Surveyor for High-redshiftt, is a space mission concept to conduct very deep and widefield surveys at near infrared wavelength at 1-5μm to study the properties of galaxies at very high redshift beyond the epoch of cosmic reionization. The concept has been developed and studied since 2008 to be proposed for future JAXA/ISAS mission. WISH has a 1.5m-diameter primary mirror and a wide-field imager covering 850 arcmin2. The pixel scale is 0.155 arcsec for 18μm pitch, which properly samples the diffraction-limited image at 1.5μm. The main program is Ultra Deep Survey (UDS) covering 100 deg2 down to 28AB mag at least in five broad bands. We expect to detect <104 galaxies at z=8-9, 103-104 galaxies at z=11-12, and 50-100 galaxies at z<14, many of which can be feasible targets for deep spectroscopy with Extremely Large Telescopes. With recurrent deep observations, detection and light curve monitoring for type-Ia SNe in rest-frame infrared wavelength is also conducted, which is another main science goal of the mission. During the in-orbit 5 years observations, we expect to detect and monitor <2000 type-Ia SNe up to z~2. WISH also conducts Ultra Wide Survey, covering 1000deg2 down to 24-25AB mag as well as Extreme Survey, covering a limited number of fields of view down to 29-30AB mag. We here report the progress of the WISH project including the basic telescope and satellite design as well as the results of the test for a proto-model of the flip-type filter exchanger which works robustly near 100K.
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Toru Yamada, Toru Yamada, Ikuru Iwata, Ikuru Iwata, Makiko Ando, Makiko Ando, Mamoru Doi, Mamoru Doi, Tomotsugu Goto, Tomotsugu Goto, Yuji Ikeda, Yuji Ikeda, Masatoshi Imanishi, Masatoshi Imanishi, Akio K. Inoue, Akio K. Inoue, Satoru Iwamura, Satoru Iwamura, Nobuyuki Kawai, Nobuyuki Kawai, Masakazu A. R. Kobayashi, Masakazu A. R. Kobayashi, Tadayuki Kodama, Tadayuki Kodama, Yutaka Komiyama, Yutaka Komiyama, Mariko Kubo, Mariko Kubo, Hideo Matsuhara, Hideo Matsuhara, Ken Mawatari, Ken Mawatari, Yoshiki Matsuoka, Yoshiki Matsuoka, Tomoki Morokuma, Tomoki Morokuma, Hidehiko Nakaya, Hidehiko Nakaya, Koji Ohta, Koji Ohta, Atsushi Okamoto, Atsushi Okamoto, Shinki Oyabu, Shinki Oyabu, Yohichi Sato, Yohichi Sato, Hiroyuki Sugita, Hiroyuki Sugita, Ryo Tsutsui, Ryo Tsutsui, Chihiro Tokoku, Chihiro Tokoku, Jun Toshikawa, Jun Toshikawa, Saku Tsuneta, Saku Tsuneta, Takehiko Wada, Takehiko Wada, Kiyoto Yabe, Kiyoto Yabe, Naoki Yasuda, Naoki Yasuda, Daisuke Yonetoku, Daisuke Yonetoku, } "WISH for deep and wide NIR surveys", Proc. SPIE 8442, Space Telescopes and Instrumentation 2012: Optical, Infrared, and Millimeter Wave, 84421A (21 September 2012); doi: 10.1117/12.925632; https://doi.org/10.1117/12.925632
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