187 citations · 351 across the 10 of their papers we have counts for
10 papers
Catalog of Gamma-ray Glows during Four Winter Seasons in Japan
Yuuki Wada, Takahiro Matsumoto, Teruaki Enoto +12
In 2015 the Gamma-Ray Observation of Winter Thunderstorms (GROWTH) collaboration launched a mapping observation campaign for high-energy atmospheric phenomena related to thundersto…
Thundercloud Project: Exploring high-energy phenomena in thundercloud and lightning
Takayuki Yuasa, Yuuki Wada, Teruaki Enoto +10
We designed, developed, and deployed a distributed sensor network aiming at observing high-energy ionizing radiation, primarily gamma rays, from winter thunderclouds and lightning…
Photoneutron Detection in Lightning by Gadolinium Orthosilicate Scintillators
Yuuki Wada, Kazuhiro Nakazawa, Teruaki Enoto +4
During a winter thunderstorm on November 24, 2017, a downward terrestrial gamma-ray flash took place and triggered photonuclear reactions with atmospheric nitrogen and oxygen nucle…
Downward Terrestrial Gamma-ray Flash observed in Winter Thunderstorm
Yuuki Wada, Teruaki Enoto, Kazuhiro Nakazawa +7
During a winter thunderstorm on 2017 November 24, a strong burst of gamma rays with energies up to 10~MeV was detected coincident with a lightning discharge, by scintillation…
Mapping Observation Project of High-Energy Phenomena during Winter Thunderstorms in Japan
Yuuki Wada, Teruaki Enoto, Yoshihiro Furuta +7
The Gamma-Ray Observation of Winter Thunderclouds (GROWTH) collaboration has been performing observation campaigns of high-energy radiation in coastal areas of Japan Sea. Winter th…
Termination of Electron Acceleration in Thundercloud by Intra/Inter-cloud Discharge
Yuuki Wada, Gregory S. Bowers, Teruaki Enoto +12
An on-ground observation program for high energy atmospheric phenomena in winter thunderstorms along Japan Sea has been performed via measurements of gamma-ray radiation, atmospher…
Discovery of recombining plasma from the faintest GeV SNR HB 21 and a possible scenario of the cosmic ray escaping from SNR shocks
Hiromasa Suzuki, Aya Bamba, Kazuhiro Nakazawa +4
We present an X-ray study of the GeV gamma-ray supernova remnant (SNR) HB 21 with Suzaku. HB 21 is interacting with molecular clouds and the faintest in the GeV band among known Ge…
Photonuclear Reactions in Lightning Discovered from Detection of Positrons and Neutrons
Teruaki Enoto, Yuuki Wada, Yoshihiro Furuta +9
Lightning and thundercloud are the most dramatic natural particle accelerators on the Earth. Relativistic electrons accelerated by electric fields therein emit bremsstrahlung gamma…
A Study of Active Shielding Optimized for 1-80 keV Wide-Band X-ray Detector in Space
Yoshihiro Furuta, Yuki Murota, Junko S. Hiraga +3
Active shielding is an effective technique to reduce background signals in hard X-ray detectors and to enable observing darker sources with high sensitivity in space. Usually the m…
Discovery of a 36 ks Phase Modulation in the Hard X-ray Pulses from the Magnetar 1E 1547.05408
Kazuo Makishima, Teruaki Enoto, Hiroaki Murakami +4
The Suzaku data of the highly variable magnetar 1E 1547.05408, obtained during the 2009 January activity, were reanalyzed. The 2.07 s pulsation of the 15--40 keV emission detect…