24 citations · 58 across the 3 of their papers we have counts for
3 papers
Chromospheric sunspots in the millimeter range as observed by the Nobeyama Radioheliograph
Kazumasa Iwai, Hideki Koshiishi, Kiyoto Shibasaki +3
We investigate the upper chromosphere and the transition region of the sunspot umbra using the radio brightness temperature at 34 GHz (corresponding to 8.8-mm observations) as obse…
Coronal Magnetic Fields Derived from Simultaneous Microwave and EUV Observations and Comparison with the Potential Field Model
Shun Miyawaki, Kazumasa Iwai, Kiyoto Shibasaki +2
We estimated the accuracy of coronal magnetic fields derived from radio observations by comparing them to potential field calculations and the DEM measurements using EUV observatio…
Coronal magnetic field and the plasma beta determined from radio and multiple satellite observations
Kazumasa Iwai, Kiyoto Shibasaki, Satoshi Nozawa +5
We derived the coronal magnetic field, plasma density, and temperature from the observation of polarization and intensity of radio thermal free-free emission using the Nobeyama Rad…