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Totani Lab
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A theory lab that stays close to observation, covering everything from cosmology to explosive objects.
AboutAbout the lab
Answering the puzzles of the latest observations with theory
The Totani Lab studies the origin of the universe and the astronomical phenomena that take place within it from a theoretical perspective.
Its subjects are broad: cosmology, the formation and evolution of galaxies, and explosive objects such as supernovae and gamma-ray bursts.
Rather than pursuing pure theory, the lab interprets the puzzles posed by the latest observational data through theory and models.
The lab works on the belief that science advances only when theory and observation mesh like the two wheels of a cart.
Key terms
- Cosmology
- The field of astronomy that studies the history and structure of the entire universe and what it is made of
- Dark matter
- Matter of unknown nature that contributes mass to galaxies and other structures but cannot be seen with light
- Gamma-ray burst
- A transient phenomenon in which intense gamma rays suddenly arrive from a single point in the sky. It is thought to be related to stellar explosions
ResearchResearch themes
Centered on cosmology, the formation and evolution of galaxies, and explosive objects, the lab tackles fundamental mysteries of astronomy. Its research style is to interpret the questions raised by the latest observational data through theory and models.
*Illustrative imageCosmology
The lab determines key parameters of cosmological models from observations and approaches the mysteries of dark matter and dark energy. It has also carried out a spectroscopic survey of distant galaxies with the Subaru Telescope.
*Illustrative imageGalaxy Formation and Evolution
By comparing theory with observation, the lab investigates how galaxies and stars were born and became what they are today, starting from the universe just after the Big Bang, when there were neither structures nor celestial objects. The evolution of active galactic nuclei is also a subject of study.
*Illustrative imageExplosive Objects and High-Energy Phenomena
The lab studies the mechanisms behind the neutron stars and black holes left by supernova explosions, and behind transient phenomena such as gamma-ray bursts and fast radio bursts. It also uses these phenomena as tools to probe the universe of the distant past.
*Illustrative imageLife in the Universe
Recently, the lab has broadened its interests to the origin of life and the conditions required for life and humans to arise. It has begun to approach these questions from the perspective of cosmology.
MembersFaculty
- ProfessorTomonori TotaniPublications ↗
VoicesStudent voices
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RelatedLabs similar to Totani Lab
Kohno LabFaculty of Science, Department of AstronomyRadio astronomy (millimeter and submillimeter waves / galaxy…
Kori LabFaculty of Science, Department of AstronomyCosmology
Kashikawa LabFaculty of Science, Department of AstronomyEarly universe and galaxy astronomy
Shimasaku LabFaculty of Science, Department of AstronomyGalactic astronomy and optical-infrared astronomyThe information on this page is compiled by the LabLog team from the lab's public information and interviews. For corrections or removal requests, please contact LabLog, not the lab.
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: “Cosmic web” Volker Springel / Max Planck Institute For Astrophysics / CC BY-SA 4.0 (cropped)
- Cosmology: “Cosmic Microwave Background (CMB)” ESA and the Planck Collaboration / CC BY 4.0 (cropped)
- Galaxy Formation and Evolution: “Hubble ultra deep field” NASA and the European Space Agency / Public domain (cropped)
- Explosive Objects and High-Energy Phenomena: “Vela Supernova Remnant - Noirlab2406a” CTIO/NOIRLab/DOE/NSF/AURA, 画像処理 T.A. Rector ほか
/ CC BY 4.0 (cropped) - Life in the Universe: “This artist's concept depicts Kepler-62e, a super-Earth-size planet in the habitable zone” NASA Ames/JPL-Caltech / Public domain (cropped)
- Related lab (Kohno Lab): “ALMA antennas on Chajnantor (malin-dsc0027)” ESO/C. Malin / CC BY 4.0 (cropped)
- Related lab (Kori Lab): “Computer simulation of a Lyman-alpha Blob” J.Geach/D.Narayanan/R.Crain / CC BY 4.0 (cropped)
- Related lab (Kashikawa Lab): “Subaru Telescope. Mauna Kea Summit ( )” Robert Linsdell / CC BY 2.0 (cropped)
- Related lab (Shimasaku Lab): “Webb's First Deep Field” NASA, ESA, CSA, and STScI / Public domain (cropped)
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