Submillimeter waves are a unique diagnostic tool for the dense innermost region of the outflow, and at that exact place we detected the rotation,» explained Hirota. (alma-telescope.jp)
In particular, radioactive atomic nuclei are synthesized in the hot, innermost regions during the explosion and can thus serve as probes of the unobservable physical processes that initiate the blast. (sciencedaily.com)
The innermost region of the Earth's outer core periodically flows faster or slower, and this action «tugs» at the planet's magnetic field, says Gillet. (newscientist.com)