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Astrophysics Lab
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The lab unravels a wide range of cosmic phenomena through theory and simulation.
AboutAbout the lab
Recreating the behavior of the universe inside computers
The lab studies topics ranging from the large-scale structure of the universe and mergers of black holes and neutron stars to cosmic-ray acceleration and astrophysical magnetospheres.
The lab clarifies cosmic phenomena at many different scales using theory and simulation.
Using gravitational lensing and gravitational waves based on general relativity, together with nuclear physics and plasma physics, the lab takes on the challenge of explaining these phenomena.
The lab also collaborates with projects at the National Astronomical Observatory of Japan, JAXA, and research institutions in Europe and the United States, carrying out theoretical simulation research closely tied to observation.
Key terms
- gravitational lensing
- A phenomenon in which the gravity of a foreground object bends the path of light, so that a more distant object appears distorted or as multiple images
- gravitational waves
- Waves produced when massive objects move violently, which propagate as ripples in space
- large-scale structure of the universe
- The largest-scale structure in the universe, in which galaxies are connected like a web and spread out
NewsLab news
First detection of a neutral-oxygen emission line from a galaxy in the early universe, published in The Astrophysical Journal
Project Assistant Professor Fudamoto receives the Young Scientists' Prize in the Commendation for Science and Technology by the Minister of Education, Culture, Sports, Science and Technology
A master's student receives the Chiba University President's Award and the Graduate School of Science and Engineering Dean's Award
A master's student receives the Chiba University President's Award for Academic Research Activities
Project Assistant Professor Fudamoto receives the Chiba University Advanced Academic Prize
ResearchResearch themes
Through theory and simulation, the lab investigates cosmic phenomena at different scales, from the large-scale structure of the universe to mergers of celestial objects and the acceleration of cosmic rays. It also puts effort into software development, such as massively parallel numerical computation for supercomputers.
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MembersFaculty
The lab's members are faculty, project faculty members, researchers, doctoral and master's students, undergraduate students, and secretaries.As of 2026
- ProfessorMasamune Oguri
- ProfessorKotaro Kyutoku
- Associate ProfessorYosuke Matsumoto
- Assistant ProfessorKen Osato
- Project ProfessorRyoji Matsumoto
- Project ProfessorTomoyuki Hanawa
- Project Assistant ProfessorYoshinobu Fudamoto
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Artist’s impression of merging neutron stars (ann17040a)” ESO/L. Calçada/M. Kornmesser / CC BY 4.0 (cropped)
- Exploring the Universe Through Theory and Simulation: “Gravitational Lens G2237 + 0305” NASA Hubble / CC BY 2.0 (cropped)
- Related lab (Condensed Matter Theory Lab (Hoshino)): “Stickstoff gekühlter Supraleiter schwebt über Dauermagneten” Henry Mühlpfordt / CC BY-SA 3.0 (cropped)
- Related lab (Cosmic Observation Experiment Lab): “IceCube Neutrino Observatory in 2023 02” Christopher Michel / CC BY-SA 4.0 (cropped)
- Related lab (Optical Properties and Quantum Transport Physics Lab): “Cold atoms experiment 01” Tomasz Kawalec / CC BY-SA 4.0 (cropped)
- Related lab (Condensed Matter Theory Lab (Sato)): “HELEN target area” Colin N. Danson et al. / CC BY 4.0 (cropped)
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