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Stellar Physics Lab
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The lab investigates the activity of black holes and stars through X-ray and optical observations.

AboutAbout the lab
Exploring the activity of black holes and stars through observation.
The Stellar Physics group studies stellar activity phenomena in a broad sense, mainly based on observations in X-rays, visible light, and infrared.
It also works on observations of accretion flows and jets around compact objects such as black holes, as well as supernovae and exoplanets.
Research topics also include the structure of active galactic nuclei and the co-evolution of galaxies and supermassive black holes.
Key terms
- Accretion flow
- A flow of gas pulled by gravity and falling onto an object such as a black hole.
- Active galactic nucleus
- The central region of a galaxy that shines intensely as gas falls onto the supermassive black hole at its center.
ResearchResearch themes
Based mainly on observations in X-rays, visible light, and infrared, the lab studies compact objects, exoplanets, active galactic nuclei, and more.
View More ↗MembersFaculty
- ProfessorYoshihiro Ueda
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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: “Black hole's accretion disk” NASA’s Goddard Space Flight Center/Jeremy Schnittman / CC BY-SA 4.0 (cropped)
- Compact Objects and Active Galactic Nuclei: “Artist’s illustration of galaxy with jets from a supermassive black hole” ESA/Hubble, L. Calçada (ESO) / CC BY 4.0 (cropped)
- Related lab (Galaxy Physics Lab): “Okayama observatory (Kyoto University)” GeeKay / Public domain (cropped)
- Related lab (Cosmic Ray Lab): “XRISM 003” NASA's Goddard Space Flight Center Conceptual Image Lab / Public domain (cropped)
- Related lab (Solar and Space Plasma Physics Lab): “Magnificent CME Erupts on the Sun - August 31” NASA Goddard Space Flight Center / CC BY 2.0 (cropped)
- Related lab (Universe Group (Yukawa Institute) Lab): “Subaru Telescope (840A5789-CC)” International Gemini Observatory/NOIRLab/NSF/AURA / CC BY 4.0 (cropped)
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