Greening the Redshift Desert by Wide-Field Infrared Imaging

2009 Fiscal Year Final Research Report

• Project/Area Number: 19540238
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Astronomy
• Research Institution: The University of Tokyo
• Principal Investigator: MOTOHARA Kentaro The University of Tokyo, 大学院・理学系研究科, 准教授 (90343102)
• Co-Investigator(Renkei-kenkyūsha): 嶋作 一大 東京大学, 理学系研究科, 准教授 (00251405)
• Project Period (FY): 2007 – 2009
• Keywords: 光学赤外線天文学 / 銀河天文学

Research Abstract

We have carried out NIR wide-field imaging of the Subaru Deep Field (0.25 sq. degree) by the UKIRT/WFCAM instrument, and created a catalog of z～2 galaxies. Utilizing this catalog, we measured the clustering properties of z～2 star forming galaxies and found that these galaxies will evolve into present-day spiral galaxies. Deficiency of less-massive passive galaxies at z～2 is also found, suggesting the elliptical galaxies with stellar mass less than ～10^<11> solar mass are still under their formation phase. Following Subaru/MOIRCS NIR spectroscopy showed that the metallicity in these galaxies are as high as that in the present-day local galaxies, indicating that these galaxies have already experienced quite much amount of star-formation activities, and their inter-stellar gas has polluted by heavy elements.

Research Products

• [Journal Article] Lyman Break Galaxies at z～1.8-2.8 : GALEX/NUV Imaging of the Subaru Deep Field (2009)
  • Author(s): Ly, C., M. A. Malkan, T. Treu, J.-H. Woo, T. Currie, M. Hayashi, N. Kashikawa, K. Motohara, K. Shimasaku, M. Yoshida
  • Journal Title: Astrophysical Journal Vol. 697 Pages: 1410-1432
  • Peer Reviewed
• [Journal Article] A Search for Molecular Gas toward a BzK-selected Star-forming Galaxy at z=2.044 (2009)
  • Author(s): Hatsukade, B., D. Iono, K. Motohara, K. Nakanishi, M. Hayashi, K. Shimasaku, T. Nagao, Y. Tamura, M. A Malkan, C. Ly, K. Kohno
  • Journal Title: Publication of Astronomial Society of Japan Vol. 61 Pages: 487-491
  • Peer Reviewed
• [Journal Article] Star Formation Rates and Metallicities of K-selected Star Forming Galaxies at z～2 (2009)
  • Author(s): Hayashi, M., K. Motohara, K. Shimasaku, M. Onodera, Y. Katsuno Uchimoto, N. Kashikawa, M. Yoshida, S. Okamura, C. Ly, M. A. Malkan
  • Journal Title: Astrophysical Journal Vol. 691 Pages: 140-151
  • Peer Reviewed
• [Journal Article] Testing the Target Selection for Future Spectroscopic BAO Surveys by SDF and SXDS Data (2008)
  • Author(s): Sumiyoshi, M., S. Oshige, T. Totani, K. Glazebrook, M. Akiyama, T. Morokuma, K. Motohara, K. Shimasaku, M. Yoshida, M. Hayashi, N. Kashikawa, T. Kodama
  • Journal Title: ASP Conference Series Vol. 399 Pages: 487
• [Journal Article] Near-Infrared Spectroscopy of BzK Galaxies with Subaru/MOIRCS (2008)
  • Author(s): Hayashi, M., K. Motohara, K. Shimasaku, M. Onodera, Y. K. Uchimoto, N. Kashikawa, M. Yoshida
  • Journal Title: ASP Conference Series Vol. 399 Pages: 282
• [Journal Article] Deep-and Wide-field K-band Imaging of the Subaru Deep Field : Implications for Galaxy Formation at z～2 (2008)
  • Author(s): Motohara, K., M. Hayashi, K. Shimasaku, M. Yoshida, N. Kashikawa, T. Kodama
  • Journal Title: ASP Conference Series Vol. 399 Pages: 274
• [Journal Article] Luminosity dependent clustering of star-forming BzK galaxies at redshift 2 (2007)
  • Author(s): Hayashi, M., K. Shimasaku, K. Motohara, M. Yoshida, S. Okamura, N. Kashikawa
  • Journal Title: Astrophysical Journal Vol. 660 Pages: 72-80
  • Peer Reviewed
• [Presentation] 1.1mm AzTEC MAP での スタッキング解析によるsBzK銀河の星質量と星形成率の関係
  • Author(s): 五十嵐創, 河野孝太郎, 本原顕太郎, 嶋作一大, 塚越崇, 廿日出文洋, 中島王彦, 井上裕文, 川村雅之, 高木俊暢, 田村陽一, 伊王野大介, 川辺良平, 江澤元, 中西康一郎, Grant Wilson, Min S. Yun, David Hughes
  • Organizer: 日本天文学会2010年春季年会
  • Place of Presentation: 広島大学
• [Presentation] Subaru Deep Field における1.6μm bump を用いた銀河選択
  • Author(s): 中島王彦, 嶋作一大, 林将央, 本原顕太郎, 五十嵐創 (東京大学), 柏川伸成 (国立天文台), M. A. Malkan, C. Ly
  • Organizer: 日本天文学会2009年秋季年会
  • Place of Presentation: 山口大学
• [Presentation] AzTEC/ASTEチーム、『AzTEC/ASTEによるSubaru Deep Field領域でのサブミリ波銀河探査』
  • Author(s): 五十嵐創, 河野孝太郎, 本原顕太郎, 田村陽一, 廿日出文洋, 井上裕文, 田代素子, 川村雅之, 川辺良平, 江澤元, 中西康一郎, Grant Wilson, Min S. Yun, David Hughes, 他
  • Organizer: 日本天文学会2009年春季年会
  • Place of Presentation: 大阪府立大学
• [Presentation] Search for molecular gas in a BzK-selected star-forming galaxy at z=2.044
  • Author(s): 廿日出文洋, 本原顕太郎, 河野孝太郎, 林将央, 伊王野大介, 中西康一郎
  • Organizer: 日本天文学会2008年秋季年会
  • Place of Presentation: 岡山理科大学
• [Presentation] z～2における K-selected 星形成銀河の星形成率と金属量
  • Author(s): 林将央, 本原顕太郎, 嶋作一大, 小野寺仁人, 内一・勝野由夏, 柏川伸成, 岡村定矩, Chun Ly, M. A. Malkan
  • Organizer: 日本天文学会2008年秋季年会
  • Place of Presentation: 岡山理科大学
• [Presentation] すばるディープフィールドに見るz～2 passive galaxy 進化
  • Author(s): 本原顕太郎, 林将央, 嶋作一大, 吉田真希子, 柏川伸成, 児玉忠恭
  • Organizer: 日本天文学会2008年秋季年会
  • Place of Presentation: 岡山理科大学
• [Presentation] SDF、SXDF銀河を用いたBAO探査に対する示唆
  • Author(s): 住吉昌直, 大重俊輔, 戸谷友則, K. Glazebrook, 秋山正幸, 本原顕太郎, 諸隈智貴, 柏川伸成, 児玉忠恭, 嶋作一大, 吉田真希子, 林将央
  • Organizer: 日本天文学会2008年春季年会
  • Place of Presentation: 国立オリンピック記念青少年総合センター
• [Presentation] MOIRCSを用いたBzK銀河の近赤外分光観測
  • Author(s): 林将央, 本原顕太郎, 嶋作一大, 小野寺仁人, 内一・勝野由夏, 吉田真希子, 柏川伸成, 岡村定矩
  • Organizer: 日本天文学会2007年秋季年会
  • Place of Presentation: 東海大学
• [Remarks] ホームページ等
  • URL: http://www.ioa.s.u-tokyo.ac.jp/~kmotohara/wfcam/