Diverse Studies on the Dark Side of the Universe

• Project/Area Number: 19740099
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Astronomy
• Research Institution: Kyoto University
• Principal Investigator: TOTANI Tomonori Kyoto University, 理学研究科, 准教授 (90321588)
• Project Period (FY): 2009 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥3,500,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥600,000); Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2009: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2008: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2007: ¥900,000 (Direct Cost: ¥900,000)
• Keywords: ダークエネルギー / ダークマター / ダークエイジ / ガンマ線バースト / 暗黒物質 / 暗黒エネルギー / 暗黒時代 / 銀河サーベイ / 宇宙論 / バリオン震動

Research Abstract

We studied in the three topics about the dark side of the universe : dark energy, dark matter, and dark age. For dark energy, the design study of galaxy redshift survey using new FMOS instrument of Subaru Telescope has been performed, and the project is close to the realization. For dark matter, we studied about the cosmic gamma-ray background radiation, especially about the contribution from active galactic nuclei and star-forming galaxies. This will become the basis for searching dark matter signal. For the dark age, we continued observational studies of high-redshift universe by gamma-ray bursts, and also we constructed a new model of Lyman alpha emitters, by which we obtained new implications for cosmic reionization.

Research Products

• [Journal Article] Contribution from Star-forming Galaxies to the Cosmic Gamma-ray Background Radiation (2011)
  • Author(s): Makiya, Ryu ; Totani, Tomonori ; Kobayashi, Masakazu A.R.
  • Journal Title: The Astrophysical Journal Volume 728, Issue 2, article id. Pages: 158-158
  • Peer Reviewed
• [Journal Article] Luminosity Distribution of Gamma-ray Burst Host Galaxies at Redshift z = 1 in Cosmological Smoothed Particle Hydrodynamic Simulations: Implications for the Metallicity Dependence of GRBs (2011)
  • Author(s): Niino, Yuu ; Choi, Jun-Hwan ; Kobayashi, Masakazu A.R. ; Nagamine, Kentaro ; Totani, Tomonori ; Zhang, Bing
  • Journal Title: The Astrophysical Journal Volume726, Issue 2, article id. Pages: 88-88
• [Journal Article] Luminosity Distribution of Gamma-ray Burst Host Galaxies at Redshift z=1 in Cosmological Smoothed Particle Hydrodynamic Simulations : Implications for the Metallicity Dependence of GRBs (2011)
  • Author(s): Niino, Yuu ; Choi, Jun-Hwan ; Kobayashi, Masakazu A.R.; Nagamine, Kentaro ; Totani, Tomonori ; Zhang, Bing
  • Journal Title: The Astrophysical Journal Volume: 726
  • Peer Reviewed
• [Journal Article] Contribution from Star-forming Galaxies to the Cosmic Gamma-ray Background Radiation (2011)
  • Author(s): Makiya, Ryu ; Totani, Tomonori ; Kobayashi, Masakazu A.R.
  • Journal Title: The Astrophysical Journal Volume: 728
  • Peer Reviewed
• [Journal Article] Size Evolution of Early-Type Galaxies and Massive Compact Objects as Dark Matter (2010)
  • Author(s): Totani, Tomonori
  • Journal Title: Publications of the Astronomical Society of Japan Vol.62
  • NAID: 10026713621
  • Peer Reviewed
• [Journal Article] Lyman Alpha Emitters in Hierarchical Galaxy Formation II.UV Continuum Luminosity Function and Equivalent Width Distribution (2010)
  • Author(s): Kobayashi, Masakazu A.R. ; Totani, Tomonori ; Nagashima, Masahiro
  • Journal Title: The Astrophysical Journal Volume708 Pages: 1119-1134
  • Peer Reviewed
• [Journal Article] Searching for the most distant blazars with the Fermi Gamma-ray Space Telescope (2010)
  • Author(s): Inoue, Yoshiyuki ; Inoue, Susumu ; Kobayashi, Masakazu A.R.; Totani, Tomonori ; Kataoka, Jun ; Sato, Rie
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 411 Pages: 464-468
  • Peer Reviewed
• [Journal Article] Lyman Alpha Emitters in Hierarchical Galaxy Formation II. UV Continuum Luminosity Function and Equivalent Width Distribution Kobayashi (2010)
  • Author(s): Masakazu A.R.; Totani, Tomonori; Nagashima, Masahiro
  • Journal Title: The Astrophysical Journal Volume708 Pages: 1119-1134
  • Peer Reviewed
• [Journal Article] Size Evolution of Early-Type Galaxies and Massive Compact Objects as Dark Matter (2010)
  • Author(s): Totani, Tomonori
  • Journal Title: PASJ 62
  • NAID: 10026713621
  • Peer Reviewed
• [Journal Article] Ly α Emitters in Hierarchical Galaxy Formation. II. Ultraviolet Continuum Luminosity Function and Equivalent (2010)
  • Author(s): Kobayashi, Masakazu A.R.; Totani, Tomonori ; Nagashima, Masahiro
  • Journal Title: The Astrophysical Journal 708 Pages: 1119-1134
  • Peer Reviewed
• [Journal Article] Probing the Long Gamma-Ray Burst Progenitor by Ly α Emission of Host Galaxies (2010)
  • Author(s): Niino, Yuu ; Totani, Tomonori ; Kobayashi, Masakazu A.R.
  • Journal Title: The Astrophysical Journal 707 Pages: 1634-1641
  • Peer Reviewed
• [Journal Article] The Blazar Sequence and the Cosmic Gamma-Ray Background Radiation in the Fermi Era Inoue (2009)
  • Author(s): Yoshiyuki ; Totani, Tomonori
  • Journal Title: The Astrophysical journal 702 Pages: 523-536
  • Peer Reviewed
• [Journal Article] GRB 080913 at Redshift 6.7 (2009)
  • Author(s): Greiner, J. ; Kruhler, T. ; Fynbo, J.P.U. ; Rossi, A. ; Schwarz, R. ; Klose, S. ; Savaglio, S. ; Tanvir, N.R. ; McBreen, S.Totani, T., 37 coauthors
  • Journal Title: The Astrophysical journal 693 Pages: 1610-1620
  • Peer Reviewed
• [Journal Article] Delay Time Distribution Measurement of Type la Supernovae by the Subaru/XMM-Newton Deep Survey and Implications for the Progenitor (2009)
  • Author(s): Totani, T. ; Morokuma, T. ; Oda, T. ; Doi, M.Yasuda, N.
  • Journal Title: Pub.Astron.Soc.Jpn. 60 Pages: 1327-1346
  • Peer Reviewed
• [Journal Article] Delay Time Distribution Measurement of Type Ia Supernovae by the Subaru / XMM-Newton Deep Survey and Implications for the Progenitor Totani (2009)
  • Author(s): T.; Morokuma, T.; Oda, T.; Doi, M.; Yasuda, N.
  • Journal Title: Pub. Astron. Soc. Jpn. 60 Pages: 1327-1346
  • Peer Reviewed
• [Journal Article] GRB 080913 at Redshift 6. 7 Greiner (2009)
  • Author(s): J.; Kruhler, T.; Fynbo, J.P.U.; Rossi, A.; Schwarz, R.; Klose, S.; Savaglio, S.; Tanvir, N.R.; McBreen, S.; Totani, T.
  • Journal Title: and 37 coauthors The Astrophysical Journal 693 Pages: 1610-1620
  • Peer Reviewed
• [Journal Article] The Blazar Sequence and the Cosmic Gamma-Ray Background Radiation in the Fermi Era Inoue (2009)
  • Author(s): Yoshiyuki; Totani, Tomonori
  • Journal Title: The Astrophysical Journal 702 Pages: 523-536
  • Peer Reviewed
• [Journal Article] GRB 080913 at Redshift 6.7 (2009)
  • Author(s): Greiner, J. 他
  • Journal Title: ApJ Lett 693 Pages: 1610-16201
  • Peer Reviewed
• [Journal Article] The Cosmic MeV Gamma-Ray Background and Hard X-Ray Spectra of Active Galactic Nuclei: Implications for the Origin of Hot AGN Coronae (2008)
  • Author(s): Inoue, Yoshiyuki ; Totani, Tomonori ; Ueda, Yoshihiro
  • Journal Title: The Astrophysical Journal Volume672
  • Peer Reviewed
• [Journal Article] Delay Time Distribution Measurement of Type Ia Supernovae by the Subaru/XMM-Newton Deep Survey and (2008)
  • Author(s): Totani, T. ; Morokuma, T. ; Oda, T. ; Doi, M. ; Yasuda, N.
  • Journal Title: PASJ 60
  • Peer Reviewed
• [Journal Article] Implications for Galaxy Evolution from Cosmic Evolution of the Supernova Rate Density (2008)
  • Author(s): Oda, T. ; Totani, T. ; Yasuda, N. ; Sumi, T. ; Morokuma, T. ; Doi, M.
  • Journal Title: PASJ 60 Pages: 169-182
  • NAID: 10023951780
  • Peer Reviewed
• [Journal Article] The Cosmic MeV Gamma-Ray Background and Hard X-Ray Spectra of Active Galactic Nuclei: Implications for the Origin of Hot AGN Coronae (2008)
  • Author(s): Inoue, Yoshiyuki; Totani, Tomonori; Ueda, Yoshihiro
  • Journal Title: The Astrophysical Journal, 672 Pages: 5-8
  • Peer Reviewed
• [Journal Article] Intracluster Short Gamma-Ray Bursts by Compact Binary Mergers (2008)
  • Author(s): Niino, Yuu; Totani, Tomonori
  • Journal Title: The Astrophysical Journal, 677 Pages: 23-26
  • Peer Reviewed
• [Journal Article] Dark matter annihilation or unresolved astrophysical sources? Anisotropy probe of the origin of the cosmic gamma-ray background (2007)
  • Author(s): Ando, Shin'Ichiro ; Komatsu, Eiichiro ; Narumoto, Takuro ; Totani, Tomonori
  • Journal Title: Physical Review D vol.75
  • Peer Reviewed
• [Journal Article] Ly a Emitters in Hierarchical Galaxy Formation (2007)
  • Author(s): Kobayashi, Masakazu A.R. ; Totani, Tomonori
  • Journal Title: Nagashima, Masahiro Astrophys.J. 670 Pages: 919-927
  • Peer Reviewed
• [Journal Article] Ly α Emitters in Hierarchical Galaxy Formation (2007)
  • Author(s): Kobayashi, Masakazu A. R.; Totani, Tomonori; Nagashima,
  • Journal Title: Astrophys. J. 670 Pages: 919-927
  • Peer Reviewed
• [Presentation] The FastSound Project (2010)
  • Author(s): Tomonori Totani
  • Organizer: FMOS Science Workshop
  • Place of Presentation: Oxford, UK
  • Year and Date: 2010-08-01
• [Presentation] Gamma-ray Luminosity Function of Blazars: Implications for Gamma-ray Background and Prospects for CTA (2010)
  • Author(s): Tomonori Totani
  • Organizer: Invited talk given at "The GeV to TeV Connection", Ringberg Castle
  • Place of Presentation: Germany
• [Presentation] cosmic gamma-ray background radiation (2009)
  • Author(s): T. Totani
  • Organizer: TeV Particle Astrophysics 2008
  • Place of Presentation: 中国北京
  • Year and Date: 2009-09-28
• [Presentation] GRBs and High Redshift Universe : High Redshift Galaxies, Pop III Stars, and Reionization (2009)
  • Author(s): Tomonori Totani
  • Organizer: "The Shocking Universe : Gamma Ray Bursts and High Energy Shock phenomena in the Universe
  • Place of Presentation: Venice, Italy
  • Year and Date: 2009-09-17
• [Presentation] The Cosmic Gamma-Ray Background Radiation (2009)
  • Author(s): Tomonori Totani
  • Organizer: Invited review talk given at TANGO (Testing Astroparticles with New GeV/TeV Observations in Positrons and electrons) in Paris workshop
  • Place of Presentation: Paris, France
• [Presentation] GRBs and High Redshift Universe: High Redshift Galaxies, Pop III Stars, and Reionization (2009)
  • Author(s): Tomonori Totani
  • Organizer: Invited talk given at "The Shocking Universe: Gamma Ray Bursts and High Energy Shock phenomena in the Universe"
  • Place of Presentation: Venice, Italy
• [Presentation] Subaru/FMOS FastSound (2007)
  • Author(s): Tomonori Totani
  • Organizer: Specroscopy in Cosmology and Galaxy Evolution 2005-2015
  • Place of Presentation: Granada, Spain
• [Presentation] Probing Reionization by Gamma-Ray Bursts
  • Author(s): Tomonori Totani
  • Organizer: An invited talk given at "Cosmological Reionization"
  • Place of Presentation: Allahabad, India
• [Remarks] ホームページ等