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Saito-Shinohara Lab (Space Plasma Division)
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A lab that explores invisible space plasma with satellites and computers.
AboutAbout the lab
Measuring space plasma in situ.
Saito-Shinohara Lab studies plasma and electromagnetic fields in space at the Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA).
In space, plasma and electromagnetic fields influence each other, producing explosive particle acceleration, giant vortices, shock waves, and more.
The lab's research takes three main approaches: developing observation instruments, analyzing satellite observation data, and theory and simulation.
Space around Earth is the only experimental site for space plasma where spacecraft can be sent to make observations in situ.
Key terms
- Plasma
- A state in which atoms are separated into electrons and ions, with electrically charged particles moving about freely. It occupies most of outer space
- Magnetic reconnection
- A phenomenon in which magnetic field lines pointing in different directions reconnect. The accumulated magnetic energy is released all at once
- Shock wave
- A boundary where a flow exceeding a wave speed, such as the speed of sound, collides with something and the density and speed change abruptly
ResearchResearch themes
The lab aims to clarify the mechanisms by which the interaction of plasma and electromagnetic fields, which are widespread in space, gives rise to various phenomena. It combines instrument development, observation data analysis, and theory and simulation.
*Illustrative imageInstruments for measuring particles in space
The lab develops instruments for sounding rockets and satellites that observe plasma and low-energy charged particles. As principal investigator, it developed the plasma and particle instruments aboard the Mercury Magnetospheric Orbiter of BepiColombo, the joint Japan-Europe mission to Mercury.
*Illustrative imageStudying the space environment with multi-point satellite observations
Satellites from many countries, including the geospace exploration satellite Arase, observe the space around Earth. By analyzing data from multiple satellites, the lab studies the space environment around Earth, which changes with solar activity.
*Illustrative imageRecreating space with supercomputers
Numerical simulations fill in the parts that satellite observations alone cannot reveal. The lab investigates fundamental plasma processes such as shock waves and magnetic reconnection through large-scale computations on supercomputers.
MembersFaculty
- ProfessorYoshifumi Saito
- ProfessorIku Shinohara
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: “Aurora borealis over Eielson Air Force Base, Alaska” United States Air Force photo by Senior Airman Joshua Strang / Public domain (cropped)
- Instruments for measuring particles in space: “BepiColombo MMO ESTEC” SkywalkerPL / CC BY 3.0 (cropped)
- Studying the space environment with multi-point satellite observations: “ERG 'Arase' OrbitCG” 宇宙航
空 研究開発機構・宇宙科学研究所(JAXA/ISAS)、 https://www.isas.jaxa.jp/en/researchers/data-policy/ 、 https://www.isas.jaxa.jp/researchers/data-policy/ / CC BY 4.0 (cropped) - Recreating space with supercomputers: “Discover Supercomputer )” NASA Goddard Space Flight Center / Public domain (cropped)
- Related lab (Seki Lab): “Aurora Australis From ISS” ISS Expedition 23 crew / Public domain (cropped)
- Related lab (Amano Lab): “Supernova Remnant SN 1006” X-ray: NASA/CXC/Rutgers/G.Cassam-Chenaï, J.Hughes et al.; Radio: NRAO/AUI/NSF/GBT/VLA/Dyer, Maddalena & Cornwell; Optical: Middlebury College/F.Winkler, NOAO/AURA/NSF/CTIO Schmidt & DSS / CC BY 4.0 (cropped)
- Related lab (Namiki Lab (RISE Lunar and Planetary Exploration Study Office)): “PIA16587 - GRAIL's Gravity Field of the Moon” NASA/ARC/MIT / Public domain (cropped)
- Related lab (Yamazaki Lab (Hisaki / SPRINT-A · Planetary Exploration)): “Global view uvi Venus (Akatsuki)” Meli thev / CC BY 4.0 (cropped)
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