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Title:
Infrared Imaging of the Gravitational Lens PG 1115+080 with the Subaru Telescope
Authors:
Iwamuro, Fumihide; Motohara, Kentaro; Maihara, Toshinori; Iwai, Jun'ichi; Tanabe, Hirohisa; Taguchi, Tomoyuki; Hata, Ryuji; Terada, Hiroshi; Goto, Miwa; Oya, Shin; Akiyama, Masayuki; Ando, Hiroyasu; Aoki, Tetsuo; Chikada, Yoshihiro; Doi, Mamoru; Fukuda, Takeo; Hamabe, Masaru; Hayashi, Masahiko; Hayashi, Saeko S.; Horaguchi, Toshihiro; Ichikawa, Shinichi; Ichikawa, Takashi; Imanishi, Masatoshi; Imi, Katsumi; Inata, Motoko; Isobe, Shuzo; Itoh, Yoichi; Iye, Masanori; Kaifu, Norio; Kamata, Yukiko; Kanzawa, Tomio; Karoji, Hiroshi; Kashikawa, Nobunari; Kato, Taichi; Kobayashi, Naoto; Kobayashi, Yukiyasu; Kodaira, Keiichi; Kosugi, George; Kurakami, Tomio; Mikami, Yoshitaka; Miyashita, Akihiko; Miyata, Takashi; Miyazaki, Satoshi; Mizumoto, Yoshihiko; Nakagiri, Masao; Nakajima, Koich; Nakamura, Kyoko; Nariai, Kyoji; Nishihara, Eiji; Nishikawa, Jun; Nishimura, Shiro; Nishimura, Tetsuo; Nishino, Tetsuo; Noguchi, Kunio; Noguchi, Takeshi; Noumaru, Jun'ichi; Ogasawara, Ryusuke; Okada, Norio; Okita, Kiichi; Omata, Koji; Oshima, Norio; Otsubo, Masashi; Sasaki, Goro; Sasaki, Toshiyuki; Sekiguchi, Maki; Sekiguchi, Kazuhiro; Shelton, Ian; Simpson, Chris; Suto, Hiroshi; Takami, Hideki; Takata, Tadafumi; Takato, Naruhisa; Tamura, Motohide; Tanaka, Kyoko; Tanaka, Wataru; Tomono, Daigo; Torii, Yasuo; Usuda, Tomonori; Waseda, Koichi; Watanabe, Juni'chi; Watanabe, Masaru; Yagi, Masafumi; Yamashita, Takuya; Yamashita, Yasumasa; Yasuda, Naoki; Yoshida, Michitoshi; Yoshida, Shigeomi; Yutani, Masami
Affiliation:
AA(Department of Physics, Kyoto University, Kitashirakawa, Kyoto 606-8502; (FI):), AB(Department of Physics, Kyoto University, Kitashirakawa, Kyoto 606-8502; (FI):), AC(Department of Physics, Kyoto University, Kitashirakawa, Kyoto 606-8502; (FI):), AD(Department of Physics, Kyoto University, Kitashirakawa, Kyoto 606-8502; (FI):), AE(Department of Physics, Kyoto University, Kitashirakawa, Kyoto 606-8502; (FI):), AF(Department of Physics, Kyoto University, Kitashirakawa, Kyoto 606-8502; (FI):), AG(Department of Physics, Kyoto University, Kitashirakawa, Kyoto 606-8502; (FI):), AH(Department of Physics, Kyoto University, Kitashirakawa, Kyoto 606-8502; (FI):), AI(Department of Physics, Kyoto University, Kitashirakawa, Kyoto 606-8502), AJ(Communications Research Laboratory, Koganei, Tokyo 184-8975), AK(Subaru Telescope, National Astronomical Observatory of Japan, 650 North Aohoku Place, Hilo, HI 96720, USA; Department of Astronomy, Kyoto University, Kyoto 606-8502), AL(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), AM(Communications Research Laboratory, Koganei, Tokyo 184-8975), AN(Department of Astronomy, Kyoto University, Kyoto 606-8502), AO(Department of Astronomy, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033), AP(Advanced Technology Center, National Astronomical Observatory, Mitaka, Tokyo 181-8588), AQ(Institute of Astronomy, The University of Tokyo, Mitaka, Tokyo 181-8588), AR(Institute of Astronomy, The University of Tokyo, Mitaka, Tokyo 181-8588), AS(Subaru Telescope, National Astronomical Observatory of Japan, 650 North Aohoku Place, Hilo, HI 96720, USA), AT(National Science Museum, Taito-ku, Tokyo 110-8718), AU(Astronomical Data Analysis Center, National Astronomical Observatory, Mitaka, Tokyo 181-8588), AV(Astronomical Institute, Tohoku University, Aoba-ku, Sendai, Miyagi 980-8578), AW(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), AX(Subaru Telescope, National Astronomical Observatory of Japan, 650 North Aohoku Place, Hilo, HI 96720, USA), AY(Subaru Telescope, National Astronomical Observatory of Japan, 650 North Aohoku Place, Hilo, HI 96720, USA), AZ(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), BA(Subaru Telescope, National Astronomical Observatory of Japan, 650 North Aohoku Place, Hilo, HI 96720, USA), BB(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), BC(Subaru Telescope, National Astronomical Observatory of Japan, 650 North Aohoku Place, Hilo, HI 96720, USA), BD(Advanced Technology Center, National Astronomical Observatory, Mitaka, Tokyo 181-8588), BE(Subaru Telescope, National Astronomical Observatory of Japan, 650 North Aohoku Place, Hilo, HI 96720, USA), BF(Subaru Telescope, National Astronomical Observatory of Japan, 650 North Aohoku Place, Hilo, HI 96720, USA), BG(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), BH(Department of Astronomy, Kyoto University, Kyoto 606-8502), BI(Subaru Telescope, National Astronomical Observatory of Japan, 650 North Aohoku Place, Hilo, HI 96720, USA), BJ(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), BK(National Astronomical Observatory, Mitaka, Tokyo 181-8588), BL(National Astronomical Observatory, Mitaka, Tokyo 181-8588), BM(Subaru Telescope, National Astronomical Observatory of Japan, 650 North Aohoku Place, Hilo, HI 96720, USA), BN(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), BO(Subaru Telescope, National Astronomical Observatory of Japan, 650 North Aohoku Place, Hilo, HI 96720, USA), BP(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), BQ(Advanced Technology Center, National Astronomical Observatory, Mitaka, Tokyo 181-8588), BR(Advanced Technology Center, National Astronomical Observatory, Mitaka, Tokyo 181-8588), BS(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), BT(Hitotsubashi University, Kunitachi, Tokyo 186-8601), BU(Advanced Technology Center, National Astronomical Observatory, Mitaka, Tokyo 181-8588), BV(National Astronomical Observatory, Mitaka, Tokyo 181-8588), BW(Astronomical Data Analysis Center, National Astronomical Observatory, Mitaka, Tokyo 181-8588), BX(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), BY(National Astronomical Observatory, Mitaka, Tokyo 181-8588), BZ(Subaru Telescope, National Astronomical Observatory of Japan, 650 North Aohoku Place, Hilo, HI 96720, USA), CA(Advanced Technology Center, National Astronomical Observatory, Mitaka, Tokyo 181-8588), CB(Advanced Technology Center, National Astronomical Observatory, Mitaka, Tokyo 181-8588), CC(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), CD(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), CE(Subaru Telescope, National Astronomical Observatory of Japan, 650 North Aohoku Place, Hilo, HI 96720, USA), CF(Advanced Technology Center, National Astronomical Observatory, Mitaka, Tokyo 181-8588), CG(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), CH(Subaru Telescope, National Astronomical Observatory of Japan, 650 North Aohoku Place, Hilo, HI 96720, USA), CI(Advanced Technology Center, National Astronomical Observatory, Mitaka, Tokyo 181-8588), CJ(Subaru Telescope, National Astronomical Observatory of Japan, 650 North Aohoku Place, Hilo, HI 96720, USA), CK(Advanced Technology Center, National Astronomical Observatory, Mitaka, Tokyo 181-8588), CL(Subaru Telescope, National Astronomical Observatory of Japan, 650 North Aohoku Place, Hilo, HI 96720, USA), CM(Cosmic Ray Research Laboratory, The University of Tokyo, Tanashi, Tokyo 188-8502), CN(Cosmic Ray Research Laboratory, The University of Tokyo, Tanashi, Tokyo 188-8502), CO(Cosmic Ray Research Laboratory, The University of Tokyo, Tanashi, Tokyo 188-8502), CP(Subaru Telescope, National Astronomical Observatory of Japan, 650 North Aohoku Place, Hilo, HI 96720, USA), CQ(Department of Physics, Kyoto University, Kitashirakawa, Kyoto 606-8502), CR(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), CS(Subaru Telescope, National Astronomical Observatory of Japan, 650 North Aohoku Place, Hilo, HI 96720, USA), CT(Subaru Telescope, National Astronomical Observatory of Japan, 650 North Aohoku Place, Hilo, HI 96720, USA), CU(Subaru Telescope, National Astronomical Observatory of Japan, 650 North Aohoku Place, Hilo, HI 96720, USA), CV(Subaru Telescope, National Astronomical Observatory of Japan, 650 North Aohoku Place, Hilo, HI 96720, USA), CW(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), CX(Subaru Telescope, National Astronomical Observatory of Japan, 650 North Aohoku Place, Hilo, HI 96720, USA), CY(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), CZ(Subaru Telescope, National Astronomical Observatory of Japan, 650 North Aohoku Place, Hilo, HI 96720, USA), DA(Advanced Technology Center, National Astronomical Observatory, Mitaka, Tokyo 181-8588), DB(Public Relation Office, National Astronomical Observatory, Mitaka, Tokyo 181-8588), DC(Astronomical Data Analysis Center, National Astronomical Observatory, Mitaka, Tokyo 181-8588), DD(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), DE(Subaru Telescope, National Astronomical Observatory of Japan, 650 North Aohoku Place, Hilo, HI 96720, USA), DF(National Astronomical Observatory, Mitaka, Tokyo 181-8588), DG(National Astronomical Observatory, Mitaka, Tokyo 181-8588), DH(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588), DI(Kiso Observatory, The University of Tokyo, Mitake, Nagano 397-0101), DJ(Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588)
Publication:
Publ. of the Astronomical Society of Japan, v.52, p.25. (PASJ Homepage)
Publication Date:
02/2000
Origin:
PASJ
PASJ Keywords:
GALAXIES: STRUCTURE, GRAVITATIONAL LENSING, QUASARS: INDIVIDUAL (PG~1115+080)
Bibliographic Code:
2000PASJ...52...25I

Abstract

We present high spatial resolution images of the gravitational-lens system PG 1115+080 taken with the near-infrared camera (CISCO) on the Subaru telescope. The FWHM of the combined image is 0.''32 in the K'-band, yielding spatial resolution of 0.''14 after a deconvolution procedure. This is a first detection of an extended emission adjacent to the A1/A2 components, indicating the presence of a fairly bright emission region with a characteristic angular radius of ~ 5 mas (40 pc). The near-infrared image of the Einstein ring was extracted in both the J and K' bands. The J-K' color is found to be significantly redder than that of a synthetic model galaxy with an age of 3 Gyr, the age of the universe at the quasar redshift.

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