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Toma Lab
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A theoretical astrophysics lab that studies black holes and gamma-ray bursts.
AboutAbout the lab
Studying relativistic astrophysics through theory.
The Toma Lab conducts theoretical research in physics, mainly dealing with relativistic astrophysics.
The lab takes up black hole jets and gamma-ray bursts, and also studies changes in spacetime caused by energy release from black holes.
The lab also conducts research that combines physics with life sciences and sociology, as well as research on the social significance of physics.
Prof. Toma is a professor at the Frontier Research Institute for Interdisciplinary Sciences and also holds a concurrent appointment in the Department of Astronomy, Graduate School of Science, but does not accept new graduate students through that concurrent appointment.
Key terms
- Relativistic astrophysics
- A field that studies astrophysical phenomena involving motion at speeds close to the speed of light and strong gravity, based on the theory of relativity.
- Black hole jet
- A narrowly collimated, high-speed outflow of gas and energy ejected from the vicinity of a black hole.
- Gamma-ray burst
- A phenomenon in which gamma rays are emitted intensely for a short time from a certain direction in the universe.
NewsLab news
Project Assistant Professor Shuta Tanaka joins the lab
Prof. Toma and colleagues publish a physics review paper on the origin and evolution of life
Results of the Event Horizon Telescope Collaboration are released
ResearchResearch themes
The lab conducts theoretical research in physics, mainly dealing with relativistic astrophysics. It also studies the boundary areas between physics and the life sciences or sociology, as well as the social significance of physics.
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MembersFaculty
The Toma Lab consists of a professor, a project assistant professor, and doctoral and master's students.As of 2026
- ProfessorKenji Toma
- Project Assistant ProfessorShuta Tanaka
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.
- Top image: “Artist’s illustration of galaxy with jets from a supermassive black hole” ESA/Hubble, L. Calçada (ESO) / CC BY 4.0 (cropped)
- Physics of the Origin and Evolution of Life: “Evolution of life (Plate (1)) BHL34391814” Chapman, Henry C. / Public domain (cropped)
- Related lab (Kimura Lab): “Anatomy of an Active Galactic Nucleus (SVS14922 - Jet illustrated Loop v01 00001 print)” NASA's Scientific Visualization Studio - NASA’s Goddard Space Flight Center’s Conceptual Image Lab / Public domain (cropped)
- Related lab (Yoshida Lab): “The Star with a Secret Identity” X-ray: NASA/CXC/Huntingdon Inst. for X-ray Astronomy/G.Garmire, Optical: ESO/VLT / Public domain (cropped)
- Related lab (Fujibayashi Lab): “Vela Supernova Remnant - Noirlab2406a” CTIO/NOIRLab/DOE/NSF/AURA Image Processing: T.A. Rector (University of Alaska Anchorage/NSF’s NOIRLab), M. Zamani & D. de Martin (NSF’s NOIRLab) / CC BY 4.0 (cropped)
- Related lab (Noda Lab): “Chandra X-Ray Observatory (noirlab2427c)” NASA/CXC & J.Vaughan / CC BY 4.0 (cropped)
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