Subaru First-Light Deep Photometry of Galaxies in A 851 Field

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Title:		Subaru First-Light Deep Photometry of Galaxies in A 851 Field
Authors:		Iye, Masanori; Iwamuro, Fumihide; Maihara, Toshinori; Miyazaki, Satoshi; Okamura, Sadanori; Shimasaku, Kazuhiro; Simpson, Chris; Akiyama, Masayuki; Ando, Hiroyasu; Aoki, Tetsuo; Aoki, Tsutomu; Chikada, Yoshihiro; Doi, Mamoru; Ebizuka, Noboru; Fukuda, Takeo; Furusawa, Hisanori; Goto, Miwa; Hamabe, Masaru; Hata, Ryuji; Hayashi, Masahiko; Hayashi, Saeko S.; Horaguchi, Toshihiro; Ichikawa, Shinichi; Ichikawa, Takashi; Imanishi, Masatoshi; Imi, Katsumi; Inata, Motoko; Isobe, Shuzo; Itoh, Yoichi; Iwai, Junichi; Kaifu, Norio; Kamata, Yukiko; Kanzawa, Tomio; Karoji, Hiroshi; Kashikawa, Nobunari; Kato, Taichi; Kawasaki, Wataru; Kimura, Masahiko; Kobayashi, Naoto; Kobayashi, Yukiyasu; Kodaira, Keiichi; Komiyama, Yutaka; Kosugi, George; Kurakami, Tomio; Mikami, Yoshitaka; Miyashita, Akihiko; Miyata, Takashi; Mizumoto, Yoshihiko; Motohara, Kentaro; Nakagiri, Masao; Nakajima, Koich; Nakamura, Kyoko; Nakata, Fumiaki; Nariai, Kyoji; Nishihara, Eiji; Nishikawa, Jun; Nishimura, Shiro; Nishimura, Tetsuo; Nishino, Tetsuo; Noguchi, Kunio; Noguchi, Takeshi; Noumaru, Junichi; Ogasawara, Ryusuke; Okada, Norio; Okita, Kiichi; Omata, Koji; Oshima, Norio; Otsubo, Masashi; Oya, Shin; Sasaki, Goro; Sasaki, Toshiyuki; Sawada, Yasuhiro; Sekiguchi, Kazuhiro; Sekiguchi, Maki; Shelton, Ian; Suto, Hiroshi; Suzuki, Katsuyuki; Taguchi, Tomoyuki; Takami, Hideki; Takata, Tadafumi; Takato, Naruhisa; Tamura, Motohide; Tanabe, Hirohisa; Tanaka, Kyoko; Tanaka, Wataru; Terada, Hiroshi; Tomono, Daigo; Torii, Yasuo; Tsukamoto, Hiroyuki; Usuda, Tomonori; Watanabe, Junichi; Watanabe, Masaru; Yagi, Masafumi; Yamashita, Takuya; Yamashita, Yasumasa; Yasuda, Naoki; Yoshida, Michitoshi; Yoshida, Shigeomi; Yutani, Masami
Affiliation:		AA(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588; (MI):), AB(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588; (MI):), AC(Department of Astronomy, Kyoto University, Kitashirakawa, Kyoto 606-8502), AD(Advanced Technology Center, National Astronomical Observatory, Mitaka, Tokyo 181-8588), AE(Advanced Technology Center, National Astronomical Observatory, Mitaka, Tokyo 181-8588), AF(Department of Astronomy, School of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033; Research Center for the Early Universe, School of Science, The University of Tokyo, Bunkyho-ku, Tokyo 113-0033), AG(Subaru Telescope, National Astronomical Observatory of Japan, 650 North A`ohōkū Place, Hilo, HI 96720, USA), AH(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588; Department of Astronomy, Kyoto University, Kitashirakawa, Kyoto 606-8502), AI(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), AJ(Communications Research Laboratory, Koganei, Tokyo 184-8975), AK(Kiso Observatory, The University of Tokyo, Mitake, Nagano 397-0101), AL(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), AM(Department of Astronomy, School of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033; Research Center for the Early Universe, School of Science, The University of Tokyo, Bunkyho-ku, Tokyo 113-0033), AN(Communications Research Laboratory, Koganei, Tokyo 184-8975), AO(Advanced Technology Center, National Astronomical Observatory, Mitaka, Tokyo 181-8588), AP(Department of Astronomy, School of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033), AQ(Department of Astronomy, Kyoto University, Kitashirakawa, Kyoto 606-8502), AR(Institute of Astronomy, School of Science, The University of Tokyo, Mitaka, Tokyo 181-8588), AS(Department of Astronomy, Kyoto University, Kitashirakawa, Kyoto 606-8502), AT(Department of Astronomy, Kyoto University, Kitashirakawa, Kyoto 606-8502), AU(Subaru Telescope, National Astronomical Observatory of Japan, 650 North A`ohōkū Place, Hilo, HI 96720, USA), AV(National Science Museum, Taito-ku, Tokyo 110-8718), AW(Advanced Data Analysis Center, National Astronomical Observatory, Mitaka, Tokyo 181-8588), AX(Astronomical Institute, Tohoku University, Aoba-ku, Sendai, Miyagi 980-8578), AY(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), AZ(Advanced Technology Center, National Astronomical Observatory, Mitaka, Tokyo 181-8588), BA(Advanced Technology Center, National Astronomical Observatory, Mitaka, Tokyo 181-8588), BB(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), BC(Subaru Telescope, National Astronomical Observatory of Japan, 650 North A`ohōkū Place, Hilo, HI 96720, USA), BD(Department of Astronomy, Kyoto University, Kitashirakawa, Kyoto 606-8502), BE(Subaru Telescope, National Astronomical Observatory of Japan, 650 North A`ohōkū Place, Hilo, HI 96720, USA), BF(Advanced Technology Center, National Astronomical Observatory, Mitaka, Tokyo 181-8588), BG(Subaru Telescope, National Astronomical Observatory of Japan, 650 North A`ohōkū Place, Hilo, HI 96720, USA), BH(Subaru Telescope, National Astronomical Observatory of Japan, 650 North A`ohōkū Place, Hilo, HI 96720, USA), BI(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), BJ(Department of Astronomy, Kyoto University, Kitashirakawa, Kyoto 606-8502), BK(Department of Astronomy, School of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033), BL(Department of Physics, School of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033), BM(Subaru Telescope, National Astronomical Observatory of Japan, 650 North A`ohōkū Place, Hilo, HI 96720, USA), BN(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), BO(National Astronomical Observatory, Mitaka, Tokyo 181-8588), BP(Department of Astronomy, School of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033), BQ(Department of Astronomy, School of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033), BR(Subaru Telescope, National Astronomical Observatory of Japan, 650 North A`ohōkū Place, Hilo, HI 96720, USA), BS(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), BT(Subaru Telescope, National Astronomical Observatory of Japan, 650 North A`ohōkū Place, Hilo, HI 96720, USA), BU(Subaru Telescope, National Astronomical Observatory of Japan, 650 North A`ohōkū Place, Hilo, HI 96720, USA), BV(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), BW(Department of Astronomy, Kyoto University, Kitashirakawa, Kyoto 606-8502), BX(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), BY(Hitotsubashi University, Kunitachi, Tokyo 186-8601), BZ(Advanced Technology Center, National Astronomical Observatory, Mitaka, Tokyo 181-8588), CA(Department of Astronomy, School of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033), CB(National Astronomical Observatory, Mitaka, Tokyo 181-8588), CC(Advanced Data Analysis Center, National Astronomical Observatory, Mitaka, Tokyo 181-8588), CD(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), CE(National Astronomical Observatory, Mitaka, Tokyo 181-8588), CF(Subaru Telescope, National Astronomical Observatory of Japan, 650 North A`ohōkū Place, Hilo, HI 96720, USA), CG(Advanced Technology Center, National Astronomical Observatory, Mitaka, Tokyo 181-8588), CH(Advanced Technology Center, National Astronomical Observatory, Mitaka, Tokyo 181-8588), CI(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), CJ(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), CK(Subaru Telescope, National Astronomical Observatory of Japan, 650 North A`ohōkū Place, Hilo, HI 96720, USA), CL(Advanced Technology Center, National Astronomical Observatory, Mitaka, Tokyo 181-8588), CM(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), CN(Subaru Telescope, National Astronomical Observatory of Japan, 650 North A`ohōkū Place, Hilo, HI 96720, USA), CO(Advanced Technology Center, National Astronomical Observatory, Mitaka, Tokyo 181-8588), CP(Subaru Telescope, National Astronomical Observatory of Japan, 650 North A`ohōkū Place, Hilo, HI 96720, USA), CQ(Department of Astronomy, Kyoto University, Kitashirakawa, Kyoto 606-8502), CR(Advanced Technology Center, National Astronomical Observatory, Mitaka, Tokyo 181-8588), CS(Subaru Telescope, National Astronomical Observatory of Japan, 650 North A`ohōkū Place, Hilo, HI 96720, USA), CT(Department of Astronomy, School of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033), CU(Subaru Telescope, National Astronomical Observatory of Japan, 650 North A`ohōkū Place, Hilo, HI 96720, USA), CV(Institute for Cosmic Ray Research, The University of Tokyo, Tanashi, Tokyo 188-8502), CW(Institute for Cosmic Ray Research, The University of Tokyo, Tanashi, Tokyo 188-8502), CX(Subaru Telescope, National Astronomical Observatory of Japan, 650 North A`ohōkū Place, Hilo, HI 96720, USA), CY(Department of Environmental and Ocean Engineering, School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033), CZ(Department of Astronomy, Kyoto University, Kitashirakawa, Kyoto 606-8502), DA(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), DB(Subaru Telescope, National Astronomical Observatory of Japan, 650 North A`ohōkū Place, Hilo, HI 96720, USA), DC(Subaru Telescope, National Astronomical Observatory of Japan, 650 North A`ohōkū Place, Hilo, HI 96720, USA), DD(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), DE(Department of Astronomy, Kyoto University, Kitashirakawa, Kyoto 606-8502), DF(Department of Astronomy, Kyoto University, Kitashirakawa, Kyoto 606-8502), DG(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), DH(Department of Astronomy, Kyoto University, Kitashirakawa, Kyoto 606-8502), DI(Subaru Telescope, National Astronomical Observatory of Japan, 650 North A`ohōkū Place, Hilo, HI 96720, USA), DJ(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), DK(Department of Astronomy, Kyoto University, Kitashirakawa, Kyoto 606-8502), DL(Subaru Telescope, National Astronomical Observatory of Japan, 650 North A`ohōkū Place, Hilo, HI 96720, USA), DM(Public Relation Office, National Astronomical Observatory, Mitaka, Tokyo 181-8588), DN(Advanced Data Analysis Center, National Astronomical Observatory, Mitaka, Tokyo 181-8588), DO(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), DP(Subaru Telescope, National Astronomical Observatory of Japan, 650 North A`ohōkū Place, Hilo, HI 96720, USA), DQ(National Astronomical Observatory, Mitaka, Tokyo 181-8588)
Publication:		Publ. of the Astronomical Society of Japan, v.52, p.9. (PASJ Homepage)
Publication Date:		02/2000
Origin:		PASJ
PASJ Keywords:		GALAXIES: CLUSTERS OF, GALAXIES: EVOLUTION, GALAXIES: PHOTOMETRY, GRAVITATIONAL LENSING, TELESCOPES
Bibliographic Code:		2000PASJ...52....9I

Abstract

We report on the results of optical and near-infrared photometry of the cluster of galaxies A 851 (=CL 0939+4713) carried out as one of the first-light observations of the 8.2 m Subaru telescope on Mauna Kea. Images as sharp as 0.''3 FWHM in K' and 0.''45 in R were obtained in these observations. The 3 sigma limiting magnitudes for points sources in 0.''3 seeing with a 0.''6 software aperture were shown to go down to R=28.1, J=25.1, and K'=24.0, respectively, for about 1 hour integration. Subaru photometry of the galaxies in this cluster has shown in its color-magnitude diagrams a well-defined sequence of the early-type galaxy population that is consistent with the track predicted for a single-burst passive-evolution model of galaxies at z = 0.4. We attempted a morphological classification of galaxies in the Subaru R-band image using the C_in method, and found that discrimination between ellipticals and spirals can be achieved fairly consistently with the types assigned by MORPHs on the HST F702W image down to R<23. A weak lensing analysis made on the Subaru R-band image yielded a reconstructed surface mass-density distribution that shows a significant maximum corresponding to the peak of the smoothed luminosity distribution of cluster galaxies. We found no significant excess of faint and/or small galaxies in the putative cluster area around the z=2 quasar and no difference in the colors for galaxies in this area from those in the main cluster either. Two extremely red objects (ERO) with R-K>6 are newly identified in the field. The colors of the reddest, disk-shaped galaxy R1 are found compatible with those of an unreddened E/S0 galaxy at z = 1.6.

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