Gaseous filaments around star-forming galaxies in the early Universe

• Project/Area Number: 25287043
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Astronomy
• Research Institution: National Astronomical Observatory of Japan
• Principal Investigator: Matsuda Yuichi 国立天文台, チリ観測所, 助教 (20647268)
• Co-Investigator(Kenkyū-buntansha): Yamada Toru 宇宙航空研究開発機構, 宇宙物理学研究系, 教授 (90271519)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥14,430,000 (Direct Cost: ¥11,100,000、Indirect Cost: ¥3,330,000); Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2013: ¥12,090,000 (Direct Cost: ¥9,300,000、Indirect Cost: ¥2,790,000)
• Keywords: 銀河形成 / 大規模構造 / 天文学

Outline of Final Research Achievements

Galaxy formation models predict that galaxies form at the intersections of dark matter filaments and gas inflows along the filaments maintain the intense star-formation activities in the early Universe. To test this prediction, we made a custom narrow-band filter, NB468, for Subaru Hyper-Suprime Cam to detect Lyman alpha emitting gas filaments. Our observing program with the NB468 was aprroved in Subaru open use time (S16A). We have published 8 refereed papers on closely related scientific topic of this program.

Research Products

• [Int'l Joint Research] ダーラム大学(英国)
• [Int'l Joint Research] カリフォルニア工科大学/プリンストン大学(米国)
• [Journal Article] An extremely dense group of massive galaxies at the centre of the protocluster at z = 3.09 in the SSA22 field (2016)
  • Author(s): Kubo, M., Yamada, T., Ichikawa, T., Kajisawa, M., Matsuda, Y., Tanaka, I., Umehata, H
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 455 Issue: 3 Pages: 3333-3344
  • DOI: 10.1093/mnras/stv2392
  • Peer Reviewed / Open Access
• [Journal Article] An enhanced merger fraction within the galaxy population of the SSA22 protocluster at z = 3.1 (2016)
  • Author(s): Hine, N. K.; Geach, J. E.; Alexander, D. M.; Lehmer, B. D.; Chapman, S. C.; Matsuda, Y.
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 455 Issue: 3 Pages: 2363-2370
  • DOI: 10.1093/mnras/stv2448
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] ALMA Deep Field in SSA22: A Concentration of Dusty Starbursts in a z = 3.09 Protocluster Core (2015)
  • Author(s): Umehata, H, 他２２名, ２１番目
  • Journal Title: The Astrophysical Journal Volume: 815 Issue: 1 Pages: 8-13
  • DOI: 10.1088/2041-8205/815/1/l8
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] High-resolution ALMA observations of SDP.81. II. Molecular clump properties of a lensed submillimeter galaxy at z = 3.042 (2015)
  • Author(s): Hatsukade, B., Tamura, Y., Iono, D., Matsuda, Y., Hayashi, M., Oguri, M.
  • Journal Title: Publications of Astronomical Soc of Japan Volume: 67 Issue: 5 Pages: 937-937
  • DOI: 10.1093/pasj/psv061
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] What powers Lyα blobs? (2015)
  • Author(s): Ao, Y.; Matsuda, Y.; Beelen, A.; Henkel, C.; Cen, R.; De Breuck, C.; Francis, P. J.; Kovacs, A.; Lagache, G.; Lehnert, M.; Mao, M. Y.; Menten, K. M.; Norris, R. P.; Omont, A.; Tatemastu, K.; Weiss;, A.; Zheng, Z.
  • Journal Title: Astronomy & Astrophysics Volume: 581 Pages: 132-137
  • DOI: 10.1051/0004-6361/201424165
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] High-resolution ALMA observations of SDP.81. I. The innermost mass profile of the lensing elliptical galaxy probed by 30 milli-arcsecond images (2015)
  • Author(s): Yoichi Tamura, Masamune Oguri, Daisuke Iono, Bunyo Hatsukade, Yuichi Matsuda, and Masao Hayashi
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 67 Issue: 4 Pages: 727-727
  • DOI: 10.1093/pasj/psv040
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] The ALMA Patchy Deep Survey: a blind search for [C II] emitters at z~4.5 (2015)
  • Author(s): Matsuda, Y., Nagao, T., Iono, D., Hatsukade, B., Kohno, K., Tamura, Y., Yamaguchi, Y., Shimizu, I.
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 451 Issue: 1 Pages: 1141-1145
  • DOI: 10.1093/mnras/stv1044
  • Peer Reviewed
• [Journal Article] A Deep Narrowband Imaging Search for C IV and He II Emission from Lyα Blobs (2015)
  • Author(s): Arrigoni Battaia, Fabrizio; Yang, Yujin; Hennawi, Joseph F.; Prochaska, J. Xavier; Matsuda, Yuichi; Yamada, Toru; Hayashino, Tomoki
  • Journal Title: The Astrophysical Journal Volume: 804 Issue: 1 Pages: 26-45
  • DOI: 10.1088/0004-637x/804/1/26
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] NIR Spectroscopic Observation of Massive Galaxies in the Protocluster at z = 3.09 (2015)
  • Author(s): M. Kubo, T. Yamada, T. Ichikawa, M. Kajisawa, Y. Matsuda, I. Tanaka
  • Journal Title: Astrophysical Journal Volume: 799 Issue: 1 Pages: 38-38
  • DOI: 10.1088/0004-637x/799/1/38
  • Peer Reviewed / Open Access
• [Journal Article] The environments of Ly-alpha blobs - I. Wide-field Ly-alpha imaging of TN J1338-1942, a powerful radio galaxy at z ~ 4.1 associated with a giant Ly-alpha nebula (2015)
  • Author(s): T. Saito, Y. Matsuda, C. G. Lacey, I. Smail, A. Orsi, C. M. Baugh, A. K. Inoue, I. Tanaka, T. Yamada, K. Ohta, C. De Breuck, T. Kodama, Y. Taniguchi
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 447 Issue: 4 Pages: 3069-3086
  • DOI: 10.1093/mnras/stu2538
  • Peer Reviewed / Open Access
• [Presentation] ALMA 860um continuum observations of 100kpc-scale Ly-alpha Blobs at z=3.1 (2015)
  • Author(s): Yuichi Matsuda
  • Organizer: East Asian ALMA Science Workshop 2015
  • Place of Presentation: 大阪府立大学I-siteなんば（大阪府大阪市）
  • Year and Date: 2015-12-08
  • Int'l Joint Research
• [Presentation] アルマによるz=3ライマンアルファ輝線ガス雲の観測 (2015)
  • Author(s): 松田有一
  • Organizer: 初代星初代銀河研究会2015
  • Place of Presentation: 群馬大学草津セミナーハウス（群馬県吾妻郡）
  • Year and Date: 2015-11-30
• [Presentation] The ALMA Patchy Deep Survey: A blind search for [CII] emitters at z ~ 4.5 (2015)
  • Author(s): 松田有一、APDSチーム
  • Organizer: 日本天文学会秋季年会
  • Place of Presentation: 甲南大学（兵庫県神戸市）
  • Year and Date: 2015-09-09
• [Presentation] Lyman-alpha blobs (2015)
  • Author(s): Yuichi Matsuda
  • Organizer: MIAPP workshop
  • Place of Presentation: Garching, Germany
  • Year and Date: 2015-08-03
  • Int'l Joint Research / Invited
• [Presentation] The ALMA Patchy Deep Survey:A blind search for [CII] emitters at z~4.5 (2014)
  • Author(s): Yuichi Matsuda
  • Organizer: Transformational Science in the ALMA Era: Multi-Wavelength Studies of Galaxy Evolution
  • Place of Presentation: アメリカ、シャーロッツビル
  • Year and Date: 2014-08-04 – 2014-08-07
• [Presentation] Lya morphology density relation (2013)
  • Author(s): Yuichi Matsuda
  • Organizer: IXth. Marseille Cosmology Conference
  • Place of Presentation: France, Merseille
  • Year and Date: 2013-07-22 – 2013-07-26