Observational study of extremely emission line galaxies: implication for early galaxy formation and the cosmic reionization

• Project/Area Number: 17K14257
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Astronomy
• Research Institution: National Astronomical Observatory of Japan
• Principal Investigator: Onodera Masato 国立天文台, ハワイ観測所, 助教 (40778396)
• Project Period (FY): 2017-04-01 – 2020-03-31
• Project Status: Completed (Fiscal Year 2019)
• Budget Amount: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: 銀河進化 / 銀河形成 / 宇宙再電離 / 銀河 / 光赤外線天文学 / 天文

Outline of Final Research Achievements

We carried out a systematic search of star-forming galaxies at 3<z<3.7 with intense [OIII]λ5007 emission line. Sample is selected based on excesses in the K-band flux due to the emission lines, and we selected 240 objects. We spectroscopically identified 19 objects by Subaru/MOIRCS observation and found that they are indeed at z>3 with intense [OIII] emission lines. By comparing physical properties for them, it is suggested that they are young and low metallicity galaxies with bursty star formation. We also find that their hydrogen ionizing photon production efficiencies are higher than the widely used canonical values by a factor of two or more.

Academic Significance and Societal Importance of the Research Achievements

本研究において、極めて強い輝線を示す赤方偏移3を越える銀河を広帯域フィルターのデータのみによって選択できることを示した。狭帯域フィルターによるサーベイはその利点はあるものの、広帯域フィルターを用いた場合は一度に観測できる宇宙の体積がはるかに大きいため、相補的な手法を確立させた点で意義がある。また、これらの天体のライマン連続光の高い生成効率を再現するには、広く用いられている恒星種族合成モデルに対して修正が必要なことが示唆され、極端な天体を用いたことで理論についての制限を与えた点でも学術的意義がある。

Research Products

• [Int'l Joint Research] CEA/Saclay(フランス)
• [Int'l Joint Research] ETH Zurich(スイス)
• [Int'l Joint Research] Cosmic Dawn Center(デンマーク)
• [Int'l Joint Research] CEA/Saclay(フランス)
• [Int'l Joint Research] ETH Zurich(スイス)
• [Int'l Joint Research] CEA/Saclay(フランス)
• [Int'l Joint Research] ETH Zurich(スイス)
• [Journal Article] The Typical Massive Quiescent Galaxy at z~3 is a Post-starburst (2020)
  • Author(s): D'Eugenio C., Daddi E., Gobat R., Strazzullo V., Lustig P., Delvecchio I., Jin S., Puglisi A., Calabro A., Mancini C., Dickinson M., Cimatti A., Onodera M.
  • Journal Title: The Astrophysical Journal Volume: 892 Issue: 1 Pages: L2-L2
  • DOI: 10.3847/2041-8213/ab7a96
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Quiescent Galaxies 1.5 Billion Years after the Big Bang and Their Progenitors (2020)
  • Author(s): Valentino Francesco、Tanaka Masayuki、Davidzon Iary、他16名、Yabe Kiyoto、他1名
  • Journal Title: The Astrophysical Journal Volume: 889 Issue: 2 Pages: 93-93
  • DOI: 10.3847/1538-4357/ab64dc
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] The MUSE Atlas of Discs (MAD): Ionized gas kinematic maps and an application to diffuse ionized gas (2020)
  • Author(s): den Brok M., Carollo C. M., Erroz-Ferrer S., Fagioli M., Brinchmann J., Emsellem E., Krajnovic D., Marino R. A., Onodera M., Tacchella S., Weilbacher P. M., Woo J.
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 491 Issue: 3 Pages: 4089-4107
  • DOI: 10.1093/mnras/stz3184
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Second Data Release of the Hyper Suprime-Cam Subaru Strategic Program (2019)
  • Author(s): Aihara et al. (including C. Hikage)
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 71 Issue: 6 Pages: 114-114
  • DOI: 10.1093/pasj/psz103
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Stellar Velocity Dispersion of a Massive Quenching Galaxy at z = 4.01 (2019)
  • Author(s): Tanaka Masayuki、Valentino Francesco、Toft Sune、Onodera Masato、Shimakawa Rhythm、Ceverino Daniel、Faisst Andreas L.、Gallazzi Anna、Gomez-Guijarro Carlos、Kubo Mariko、Magdis Georgios E.、Steinhardt Charles L.、Stockmann Mikkel、Yabe Kiyoto、Zabl Johannes
  • Journal Title: The Astrophysical Journal Volume: 885 Issue: 2 Pages: L34-L34
  • DOI: 10.3847/2041-8213/ab4ff3
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] A contribution of star-forming clumps and accreting satellites to the mass assembly of z~2 galaxies (2019)
  • Author(s): Zanella A., Le Floc'h E., Harrison C. M., Daddi E., Bernhard E., Gobat R., Strazzullo V., Valentino F., Cibinel A., Sanchez Almeida J., Kohandel M., Fensch J., Behrendt M., Burkert A., Onodera M., Bournaud F., Scholtz J.
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 489 Issue: 2 Pages: 2792-2818
  • DOI: 10.1093/mnras/stz2099
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] SILVERRUSH. VIII. Spectroscopic Identifications of Early Large-scale Structures with Protoclusters over 200 Mpc at z ~ 6-7: Strong Associations of Dusty Star-forming Galaxies (2019)
  • Author(s): Harikane Yuichi、Ouchi Masami、Ono Yoshiaki、Fujimoto Seiji、Donevski Darko、Shibuya Takatoshi、Faisst Andreas L.、Goto Tomotsugu、Hatsukade Bunyo、Kashikawa Nobunari、Kohno Kotaro、Hashimoto Takuya、Higuchi Ryo、Inoue Akio K.、Lin Yen-Ting、Martin Crystal L.、Overzier Roderik、Smail Ian、Toshikawa Jun、et al.
  • Journal Title: The Astrophysical Journal Volume: 883 Issue: 2 Pages: 142-142
  • DOI: 10.3847/1538-4357/ab2cd5
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] A Spectroscopic Study of a Rich Cluster at z = 1.52 with Subaru and LBT: The Environmental Impacts on the Mass-Metallicity Relation (2019)
  • Author(s): Namiki Shigeru V.、Koyama Yusei、Hayashi Masao、Tadaki Ken-ichi、Kashikawa Nobunari、Onodera Masato、Shimakawa Rhythm、Kodama Tadayuki、Tanaka Ichi、N. M. Forster-Schreiber、Kurk Jaron、Genzel R.
  • Journal Title: The Astrophysical Journal Volume: 877 Issue: 2 Pages: 118-118
  • DOI: 10.3847/1538-4357/ab1b6c
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] The MUSE Atlas of Disks (MAD): resolving star formation rates and gas metallicities on <100 pc scales (2019)
  • Author(s): Erroz-Ferrer, Carollo, den Brok, Onodera, Brinchmann, Marino, Monreal-Ibero, Schaye, Woo, Cibinel, Debattista, Inami, Maseda, Richard, Tacchella, and Wisotzki
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 484 Issue: 4 Pages: 5009-5027
  • DOI: 10.1093/mnras/stz194
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Multi-wavelength Properties of Type 1 and Type 2 AGN Host Galaxies in the Chandra-COSMOS Legacy Survey (2019)
  • Author(s): Suh Hyewon、Civano Francesca、Hasinger Guenther、Lusso Elisabeta、Marchesi Stefano、Schulze Andreas、Onodera Masato、Rosario David J.、Sanders David B.
  • Journal Title: The Astrophysical Journal Volume: 872 Issue: 2 Pages: 168-168
  • DOI: 10.3847/1538-4357/ab01fb
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Deciphering an evolutionary sequence of merger stages in infrared-luminous starburst galaxies at z ~ 0.7 (2019)
  • Author(s): Calabro A.、Daddi E.、Puglisi A.、Oliva E.、Gobat R.、Cassata P.、Amorin R.、Arimoto N.、Boquien M.、Carraro R.、Delvecchio I.、Ibar E.、Jin S.、Juneau S.、Liu D.、Onodera M.、Mannucci F.、Mendez-Hernanez H.、Rodighiero G.、Valentino F.、Zanella A.
  • Journal Title: Astronomy & Astrophysics Volume: 623 Pages: A64-A64
  • DOI: 10.1051/0004-6361/201834522
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Dust Attenuation, Bulge Formation, and Inside-out Quenching of Star Formation in Star-forming Main Sequence Galaxies at z ~ 2 (2018)
  • Author(s): Tacchella S.、Carollo C. M.、Forster Schreiber N. M.、Renzini A.、Dekel A.、Genzel R.、Lang P.、Lilly S. J.、Mancini C.、Onodera M.、Tacconi L. J.、Wuyts S.、Zamorani G.
  • Journal Title: The Astrophysical Journal Volume: 859 Issue: 1 Pages: 56-56
  • DOI: 10.3847/1538-4357/aabf8b
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] SILVERRUSH. V. Census of Lyα, [O iii] λ5007, Hα, and [C ii] 158 μm Line Emission with ~1000 LAEs at z = 4.9-7.0 Revealed with Subaru/HSC (2018)
  • Author(s): Harikane Yuichi、Ouchi Masami、Shibuya Takatoshi、Kojima Takashi、Zhang Haibin、Itoh Ryohei、Ono Yoshiaki、Higuchi Ryo、Inoue Akio K.、Chevallard Jacopo、Capak Peter L.、Nagao Tohru、Onodera Masato、他13名
  • Journal Title: The Astrophysical Journal Volume: 859 Issue: 2 Pages: 84-84
  • DOI: 10.3847/1538-4357/aabd80
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Deciphering the Activity and Quiescence of High-redshift Cluster Environments: ALMA Observations of Cl J1449+0856 at z = 2 (2018)
  • Author(s): Strazzullo V.、Coogan R. T.、Daddi E.、Sargent M. T.、Gobat R.、Valentino F.、Bethermin M.、Pannella M.、Dickinson M.、Renzini A.、Arimoto N.、Cimatti A.、Dannerbauer H.、Finoguenov A.、Liu D.、Onodera M.
  • Journal Title: The Astrophysical Journal Volume: 862 Issue: 1 Pages: 64-64
  • DOI: 10.3847/1538-4357/aacd10
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Near-infrared Emission Lines in Starburst Galaxies at 0.5 < z < 0.9: Discovery of a Merger Sequence of Extreme Obscurations (2018)
  • Author(s): Calabro A.、Daddi E.、Cassata P.、Onodera M.、Gobat R.、Puglisi A.、Jin S.、Liu D.、Amorin R.、Arimoto N.、Boquien M.、Carraro R.、Elbaz D.、Ibar E.、Juneau S.、Mannucci F.、Mendez Hernanez H.、Oliva E.、Rodighiero G.、Valentino F.、Zanella A.
  • Journal Title: The Astrophysical Journal Volume: 862 Issue: 2 Pages: L22-L22
  • DOI: 10.3847/2041-8213/aad33e
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Merger driven star-formation activity in Cl J1449+0856 at z=1.99 as seen by ALMA and JVLA (2018)
  • Author(s): Coogan R T、Daddi E、Sargent M T、Strazzullo V、Valentino F、Gobat R、Magdis G、Bethermin M、Pannella M、Onodera M、Liu D、Cimatti A、Dannerbauer H、Carollo M、Renzini A、Tremou E
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 479 Pages: 703-729
  • DOI: 10.1093/mnras/sty1446
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] The Molecular Gas Content and Fuel Efficiency of Starbursts at z ~ 1.6 with ALMA (2018)
  • Author(s): Silverman J. D.、Rujopakarn W.、Daddi E.、Renzini A.、Rodighiero G.、Liu D.、Puglisi A.、Sargent M.、Mancini C.、Kartaltepe J.、Kashino D.、Koekemoer A.、Arimoto N.、Bethermin M.、Jin S.、Magdis G.、Nagao T.、Onodera M.、Sanders D.、Valentino F.
  • Journal Title: The Astrophysical Journal Volume: 867 Issue: 2 Pages: 92-92
  • DOI: 10.3847/1538-4357/aae25e
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] The Hyper Suprime-Cam SSP Survey: Overview and survey design (2018)
  • Author(s): Aihara Hiroaki、Arimoto Nobuo、Armstrong Robert、 et al. (including Imanishi M.)
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Issue: SP1 Pages: 1-15
  • DOI: 10.1093/pasj/psx066
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] First data release of the Hyper Suprime-Cam Subaru Strategic Program (2018)
  • Author(s): Aihara Hiroaki、Armstrong Robert、Bickerton Steven、et al. (including Imanishi M.)
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Issue: SP1 Pages: 1-34
  • DOI: 10.1093/pasj/psx081
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Population gradient in Sextans dSph: Comprehensive mapping of a dwarf galaxy by Suprime-Cam (2017)
  • Author(s): Okamoto S.、Arimoto N.、Tolstoy E.、Jablonka P.、Irwin M. J.、Komiyama Y.、Yamada Y.、Onodera M.
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 467 Pages: 208-217
  • DOI: 10.1093/mnras/stx086
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] The Interstellar Medium in [O iii]-selected Star-forming Galaxies at z~3.2 (2017)
  • Author(s): Suzuki Tomoko L.、Kodama Tadayuki、Onodera Masato、Shimakawa Rhythm、Hayashi Masao、Tadaki Ken-ichi、Koyama Yusei、Tanaka Ichi、Sobral David、Smail Ian、Best Philip N.、Khostovan Ali A.、Minowa Yosuke、Yamamoto Moegi
  • Journal Title: The Astrophysical Journal Volume: 849 Issue: 1 Pages: 1-15
  • DOI: 10.3847/1538-4357/aa8df3
  • Peer Reviewed / Int'l Joint Research
• [Presentation] 面分光で探る星形成銀河~近傍から遠方まで~ (2019)
  • Author(s): 小野寺仁人
  • Organizer: 面分光研究会2019
  • Invited
• [Presentation] Near-infrared spectroscopy of extreme emission line galaxies (EELGs) at z>3 (2019)
  • Author(s): Masato Onodera
  • Organizer: EAO Subaru Science Workshop 2019
  • Int'l Joint Research
• [Presentation] Near-IR spectroscopy of extreme emission line galaxies at z>3 (2019)
  • Author(s): Masato Onodera
  • Organizer: Subaru-EAO High-z Galaxy Workshop 2019
  • Int'l Joint Research
• [Presentation] Extreme emission line galaxies (EELGs) at z>3 (2018)
  • Author(s): Masato Onodera
  • Organizer: COSMOS Team Meeting Copenhagen 2018
  • Int'l Joint Research
• [Presentation] Metallicity And Ionization Condition Of Ism In Star-Forming Galaxies At High Redshift (2017)
  • Author(s): Masato Onodera
  • Organizer: Galaxy Evolution Across Time
  • Int'l Joint Research / Invited
• [Presentation] MAD IV. Stellar populations of nearby disc galaxies (2017)
  • Author(s): Masato Onodera
  • Organizer: The 13th MUSE Science Busy Week in Spineto
  • Int'l Joint Research
• [Presentation] ISM properties of star-forming galaxies at z~3.3 from MOSFIRE spectroscopy (2017)
  • Author(s): Masato Onodera
  • Organizer: Keck Science Meeting 2017
  • Int'l Joint Research