Toshihiro Kawaguchi
- Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). II. Discovery of 32 quasars and luminous galaxies at 5.7 < z ≤ 6.8
2017/04/30 by Yoshiki Matsuoka, Masafusa Onoue, Nobunari Kashikawa +51 · 13 citations
Physics and Astronomy · #Active galactic nucleus #Astronomy and Astrophysical Research #Galaxies: Formation, Evolution, Phenomena #Galaxy #Luminosity #Luminosity function #Luminous infrared galaxy #Photometry (optics) #Quasar #Scientific Research and Discoveries #astro-ph.CO #astro-ph.GA
- A Post-Starburst Pathway for the Formation of Massive Galaxies and Black Holes at z>6
2024/09/11 by Masafusa Onoue, Xuheng Ding, Onoue, Masafusa +93 · 1 voice · 13 citations
Physics and Astronomy · #Astrophysical Phenomena and Observations #Astrophysics of Galaxies (astro-ph.GA) #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences
- Numerical simulation of two-dimensional fluidized beds using the discrete element method (comparison between the two- and three-dimensional models)
1998/05/01 by Toshihiro Kawaguchi, T. Kawaguchi, Toshitsugu Tanaka +3 · 2 citations
Engineering · Mathematics · #CFD-DEM #Classical mechanics #Computer simulation #Cyclone Separators and Fluid Dynamics #Discrete element method #Equations of motion #Eulerian path #Extended discrete element method #Extended finite element method #Finite element method #Fluidization #Fluidized bed #Geology #Granular flow and fluidized beds #Lagrangian #Magnetosphere particle motion #Mathematical analysis #Mathematics #Mechanics #Mineral Processing and Grinding #Motion (physics) #Numerical analysis #Particle (ecology) #Physics #Thermodynamics
- Hyper-luminous Dust Obscured Galaxies discovered by the Hyper Suprime-Cam on Subaru and WISE
2015/06/01 by Yoshiki Toba, Tohru Nagao, Michael A. Strauss +31 · 2 citations
Physics and Astronomy · #astro-ph.GA
- Black hole mass and Eddington ratio distributions of less-luminous quasars at z∼4 in the Subaru Hyper Suprime-Cam Wide field
2023/11/15 by Wanqiu He, Masayuki Akiyama, He, Wanqiu +25 · 5 citations
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysical Phenomena and Observations #Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences #Galaxies: Formation, Evolution, Phenomena
- J1406+0102: Dust Obscured Galaxy Hiding Super Eddington Accretion System with Bright Radio Emission
2023/03/09 by Hikaru Fukuchi, Kohei Ichikawa, Fukuchi, Hikaru +17 · 3 citations
Physics and Astronomy · #Astrophysical Phenomena and Observations #Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences #Galaxies: Formation, Evolution, Phenomena #High Energy Astrophysical Phenomena (astro-ph.HE) #Pulsars and Gravitational Waves Research
- Discovery of the First Low-Luminosity Quasar at z > 7
2019/01/29 by Yoshiki Matsuoka, Masafusa Onoue, Nobunari Kashikawa +45 · 1 citation
Physics and Astronomy · #astro-ph.GA
- X-Ray Spectral Model from Clumpy Torus and Its Application to Circinus Galaxy
2019/04/18 by Atsushi Tanimoto, Yoshihiro Ueda, Hirokazu Odaka +3 · 1 citation
Physics and Astronomy · #astro-ph.HE #astro-ph.GA
- A Stellar-Mass Black Hole in the Ultraluminous X-Ray Source M82 X-1?
2006/10/13 by Takashi Okajima, Ken Ebisawa, Toshihiro Kawaguchi · 1 citation
Engineering · Physics and Astronomy · #Accretion (finance) #Astronomy #Astrophysical Phenomena and Observations #Astrophysics #Black hole (networking) #Eddington luminosity #Galaxy #Luminosity #Mechanics and Biomechanics Studies #Physics #Thin disk #astro-ph
- Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs) XII. Extended [C II] Structure (Merger or Outflow) in a z = 6.72 Red Quasar
2021/01/04 by Takuma Izumi, Masafusa Onoue, Yoshiki Matsuoka +31 · 1 citation
Physics and Astronomy · #astro-ph.GA
- Optical properties of infrared-bright dust-obscured galaxies viewed with Subaru Hyper Suprime-Cam
2018/03/31 by Akatoki Noboriguchi, Tohru Nagao, Yoshiki Toba +11 · 1 citation
Physics and Astronomy · #astro-ph.GA
- Near-infrared Variability Detected in the Young Star-Forming Dwarf Galaxy SBS 0335-052E
2023/04/07 by Shun Hatano, Hatano, Shun, Mitsuru Kokubo +35 · 1 citation
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysical Phenomena and Observations #Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences #Galaxies: Formation, Evolution, Phenomena
- Subaru High-z Exploration of Low-luminosity Quasars (SHELLQs). XVII. Black Hole Mass Distribution at z ∼ 6 Estimated via Spectral Comparison with Low-z Quasars
2023/10/18 by Ayumi Takahashi, Takahashi, Ayumi, Yoshiki Matsuoka +21 · 3 citations
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysical Phenomena and Observations #Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences #Galaxies: Formation, Evolution, Phenomena
- SHELLQs. Bridging the Gap: JWST Unveils Obscured Quasars in the Most Luminous Galaxies at z > 6
2025/05/07 by Yoshiki Matsuoka, Masafusa Onoue, Matsuoka, Yoshiki +37 · 5 citations
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysical Phenomena and Observations #Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences #Galaxies: Formation, Evolution, Phenomena
- SHELLQs-JWST Unveils the Host Galaxies of 12 Quasars at z>6
2025/05/06 by Xuheng Ding, Ding, Xuheng, Masafusa Onoue +71 · 6 citations
Physics and Astronomy · Engineering · #Galaxies: Formation, Evolution, Phenomena #Astronomy and Astrophysical Research #Space Technology and Applications
- Merging gas-rich galaxies that harbor low-luminosity twin quasars at z = 6.05: a promising progenitor of the most luminous quasars
2024/05/03 by Takuma Izumi, Yoshiki Matsuoka, Izumi, Takuma +33 · 1 citation
Engineering · Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences #Galaxies: Formation, Evolution, Phenomena #Photocathodes and Microchannel Plates
- The Largest Blueshifts of the [Oiii] Emission Line in Two Narrow‐Line Quasars
2004/09/22 by Kentaro Aoki, Toshihiro Kawaguchi, Kouji Ohta · 1 citation
Physics and Astronomy · #Accretion (finance) #Active galactic nucleus #Astronomy #Astrophysical Phenomena and Observations #Astrophysics #Blueshift #Doubly ionized oxygen #Emission spectrum #Galaxies: Formation, Evolution, Phenomena #Galaxy #Gamma-ray bursts and supernovae #Line (geometry) #Luminosity #Optics #Photoluminescence #Physics #Quasar #Redshift #Spectral line #astro-ph