From fundamental astrophysics to applied radiation science.
Uncovering the physics of the high-energy universe — black holes and MeV gamma rays — through theory and multi-messenger observations.
Magnetic field measurements and origin of AGN coronae, jet launching, accretion physics, and extreme physics near the event horizon.
Pioneering MeV gamma-ray astronomy and multi-messenger studies.
Applying our expertise in high-energy astrophysics to real-world radiation challenges of the space age.
Understanding and forecasting the cosmic-ray and radiation environment on the lunar surface for the era of human lunar activity.
Quasi-simultaneous ALMA observations of nine radio-quiet AGN at 100, 145, and 233 GHz reveal day-scale millimeter variability and a clear mm–X-ray correlation, consistent with non-thermal emission from a compact region such as the corona or a compact jet.
Shibaura Institute of Technology issued a press release on our simultaneous XRISM and VLBI observations of the radio galaxy 3C 120, showing that the cold accretion disk truncates at about 20 times the black hole radius and turns into a hot plasma flow that launches the jet (Noda et al.).
XMM-Newton reveals, for the first time, X-ray jet structures extending over tens of parsecs from V4641 Sgr.
Yoshiya Hosono, Tokio Kondo, Daichi Moroka, Kazunori Murotani, and Umi Yanuma have joined the lab as third-year undergraduate students.
Coordinated XRISM and VLBI observations of the radio galaxy 3C 120 link jet launching to a hot inner flow inside a truncated accretion disk.