Japan’s Possible Contributions For Coronagraph Of The Habitable Worlds Observatory (HWO)
Example of the optical design for the NIR coronagraph. (Top) Overall layout of the optical system, where the…
The Mass of TOI-1883 b: A Low Density Super-Neptune In The Ridge Regime Transiting An Early-M dwarf
Planets orbiting M-type stars (Teff < 4000K) are plotted in black on the orbital period–planet radius diagram. TOI-1883…
Supermassive black hole grows 13 times faster than cosmic speed limits
Japanese astronomers have discovered an extraordinary supermassive black hole in the early universe that is growing at a…