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Yamada Lab
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A lab that explores the relationship between black holes and galaxies through multiwavelength observations, including X-rays.
AboutAbout the lab
Exploring how black holes work through X-ray and multiwavelength observations
The Yamada Lab studies why black holes exist in the universe through multiwavelength astronomical observations centered on X-rays.
The lab investigates how gas moves around the supermassive black holes at the centers of galaxies and what elements that gas is made of.
Its ultimate aim is to uncover the role black holes played in the formation of galaxies and galaxy clusters, and even in the origins of the solar system and humankind.
The lab belongs to the New Field Creation Research Division of the Frontier Research Institute for Interdisciplinary Sciences (FRIS) at Tohoku University.
Key terms
- Black hole winds
- A phenomenon in which the gravitational energy of gas is converted into heat and motion, blowing away the surrounding gas
- XRISM satellite
- An astronomical satellite that observes X-rays from space. It can split X-rays finely and measure them with higher spectral resolution than earlier instruments
- Elemental abundance ratios
- A measure of which elements are contained in gas and other matter, and in what proportions. It provides clues to the origin of the matter
ResearchResearch themes
The lab asks why black holes exist in the universe and studies how they relate to the structure of galaxies and galaxy clusters. Centered on high-resolution X-ray spectroscopy, it aims to reveal the full picture of the motion of matter orbiting black holes and its elemental composition.
*Illustrative imageEffects of Black Holes on Galaxies
Supermassive black holes are found universally at the centers of galaxies, and their masses are strongly tied to the structure of galaxies and galaxy clusters. A phenomenon called "black hole winds," which blows gas away, also occurs.
*Illustrative imageThe Full Picture of Matter Motion and Elemental Composition
The lab aims to uncover the full picture of the mass, velocity, and elemental abundance ratios of the matter circulated by black holes. In addition to high-resolution X-ray spectroscopy with the XRISM satellite, it examines the overall structure using state-of-the-art multiwavelength instruments around the world.
MembersFaculty
- Assistant ProfessorSatoshi Yamada
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: “Chandra X-ray Observatory after release from Space Shuttle Columbia” NASA/STS-93/Cady Coleman / Public domain (cropped)
- Effects of Black Holes on Galaxies: “Galactic gas makes a getaway (potw2550a)” ESA/Hubble & NASA, S. Veilleux, J. Wang, J. Greene / CC BY 4.0 (cropped)
- The Full Picture of Matter Motion and Elemental Composition: “M82 Chandra HST Spitzer” NASA/JPL-Caltech/STScI/CXC/UofA/ESA/AURA/JHU / Public domain (cropped)
- Related lab (Ichikawa Lab): “Montage of the Event Horizon Telescope observatories (night) (eso2208-eht-mwg)” ESO/M. Kornmesser. Images of individual telescopes: ALMA: ESO. APEX: ESO. LMT: INAOE Archives. GLT: N. Patel. JCMT: EAO-W. Montgomerie. SMT: D. Harvey. 30m: N. Billot. SPT: Wikipedia. SMA: S. R. Schimpf. NOEMA: IRAM. Kitt Peak: Wikipedia Milky Way: N. Risinger (skysurvey.org) / CC BY 4.0 (cropped)
- Related lab (Noda Lab): “Chandra X-Ray Observatory (noirlab2427c)” NASA/CXC & J.Vaughan / CC BY 4.0 (cropped)
- Related lab (Murayama Lab): “Messier83 - Heic1403a” Credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA) Acknowledgement: William Blair (Johns Hopkins University) / Public domain (cropped)
- Related lab (Kodama Lab): “Galaxy cluster Abell 1689 and distant galaxies ( )” Hubble ESA / CC BY 2.0 (cropped)
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