33 citations · 425 across the 25 of their papers we have counts for
4 papers · 1 filter
Estimating the temperature and density of a spicule from 100 GHz data obtained with ALMA
Masumi Shimojo, Tomoko Kawate, Takenori J. Okamoto +6
We succeeded in observing two large spicules simultaneously with the Atacama Large Millimeter/submillimeter Array (ALMA), the Interface Region Imaging Spectrograph (IRIS), and the…
Spectral Structures of Type II Solar Radio Bursts and Solar Energetic Particles
Kazumasa Iwai, Seiji Yashiro, Nariaki V. Nitta +1
We investigated the relationship between the spectral structures of type II solar radio bursts in the hectometric and kilometric wavelength ranges and solar energetic particles (SE…
Development of a coronal mass ejection arrival time forecasting system using interplanetary scintillation observations
Kazumasa Iwai, Daikou Shiota, Munetoshi Tokumaru +3
Coronal mass ejections (CMEs) cause disturbances in the environment of the Earth when they arrive at the Earth. However, the prediction of the arrival of CMEs still remains a chall…
Comparative Study of Microwave Polar Brightening, Coronal Holes, and Solar Wind Over the Solar Poles
Ken'ichi Fujiki, Kiyoto Shibasaki, Seiji Yashiro +3
We comparatively studied the long-term variation (1992-2017) in polar brightening observed with the Nobeyama Radioheliograph, the polar solar wind velocity with interplanetary scin…