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Horiuchi Lab
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A theory lab that decodes supernovae and dark matter through signals from space.
AboutAbout the lab
At the boundary of high-energy astrophysics and particle physics.
The Horiuchi Lab studies, from a theoretical standpoint, the field where high-energy astrophysics and particle physics overlap.
The lab considers the physics of supernova explosions and of dark matter as particles, and explores how they can be probed with light, cosmic rays, and neutrinos arriving from space.
As multi-messenger astronomy, which combines multiple signals to study the universe, advances rapidly, the lab provides theoretical predictions for observations and experiments.
Prof. Horiuchi also holds appointments at Virginia Tech in the United States and at the Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU) at the University of Tokyo.
Key terms
- Multi-messenger astronomy
- Astronomy that studies the universe by combining multiple signals, not only light but also neutrinos, gravitational waves, and cosmic rays
- Neutrino
- An elementary particle with no electric charge that passes through other matter, barely interacting with it
- Supernova explosion
- A huge explosion that a massive star, for example, undergoes at the end of its life
ResearchResearch themes
The lab theoretically studies the physics of supernova explosions and dark matter at the boundary of high-energy astrophysics and particle physics. It focuses on predicting what observatories and neutrino experiments can reveal, and on showing what the results would mean.
*Illustrative imagePhysics of supernova explosions
The lab studies the physics of supernova explosions, exploring how the explosions can be probed using high-energy signals arriving from space, such as light, cosmic rays, and neutrinos.
*Illustrative imageDark matter as particles
The lab studies the physics of dark matter considered as an elementary particle, and explores how dark matter can be probed with high-energy light, cosmic rays, and neutrinos arriving from space.
*Illustrative imageTheoretical proposals for observations and experiments
From theory, the lab shows what observatories and neutrino experiments can reveal, and what the results would mean for particle physics and astrophysics. Supernova neutrinos are one example.
*Illustrative imageEarly warning of supernovae
The lab also examines whether theoretical predictions can be confirmed by observation. Prof. Horiuchi is a member of SNEWS, which alerts the astronomy community as quickly as possible when a supernova occurs in the Milky Way.
MembersFaculty
The Horiuchi Lab's members consist of faculty and students in doctoral (Virginia Tech), master's, and undergraduate programs.As of 2026
- Associate ProfessorShunsaku Horiuchi
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: “Details of Supernova Remnant Cassiopeia A (opo0215d)” NASA/ESA and the Hubble Heritage Team (STScI/AURA) / Public domain (cropped)
- Physics of supernova explosions: “Supernova Remnant Cassiopeia A” NASA/JPL-Caltech/J. Rho (Caltech-SSC) / Public domain (cropped)
- Dark matter as particles: “Bullet Cluster (NIRCam Image) (bullet-cluster)” NASA, ESA, CSA, STScI, J. Jee (Yonsei University, UC Davis), S. Cha (Yonsei University), K. Finner (Caltech/IPAC) / CC BY 4.0 (cropped)
- Theoretical proposals for observations and experiments: “The Daya Bay Antineutrino Detector ( )” Roy Kaltschmidt, Lawrence Berkeley National Laboratory / Public domain (cropped)
- Early warning of supernovae: “Northern leg of LIGO interferometer on Hanford Reservation” Umptanum / CC BY-SA 3.0 (cropped)
- Related lab (向山研究室): “Cold atoms experiment 03” Tomasz Kawalec / CC BY-SA 4.0 (cropped)
- Related lab (山口研究室): “WMAP 2012” NASA / WMAP Science Team / Public domain (cropped)
- Related lab (須山研究室): “Gravitational lensing in the galaxy cluster Abell 370 (captured by the Hubble Space Telescope)” NASA, ESA, the Hubble SM4 ERO Team and ST-ECF / CC BY 4.0 (cropped)
- Related lab (国分研究室): “GUSTO Scientific Balloon Mission Launch ( )” NASA Goddard Photo and Video / Public domain (cropped)
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