activity
20082025
most citedChromospheric Anemone Jets as Evidence of Ubiquitous Reconnection

436 citations · 1.5k across the 13 of their papers we have counts for

collaborators
Showing astro-ph.SRShow all

9 papers · 1 filter

astro-ph.SR2025

STORMY : A Real-time Triggering Framework using Yamagawa Solar Spectrograph for Active Solar Emission Observations with the MWA

Deepan Patra, Devojyoti Kansabanik, Divya Oberoi +5

Some of the most interesting insights into solar physics and space weather come from studying radio emissions associated with solar activity, which remain inherently unpredictable.…

astro-ph.SR2021★ 47 cited

Operational solar flare prediction model using Deep Flare Net

Naoto Nishizuka, Yuki Kubo, Komei Sugiura +2

We developed an operational solar flare prediction model using deep neural networks, named Deep Flare Net (DeFN). DeFN can issue probabilistic forecasts of solar flares in two cate…

astro-ph.SR2020★ 30 cited

Reliable Probability Forecast of Solar Flares: Deep Flare Net-Reliable (DeFN-R)

Naoto Nishizuka, Yûki Kubo, Komei Sugiura +2

We developed a reliable probabilistic solar flare forecasting model using a deep neural network, named Deep Flare Net-Reliable (DeFN-R). The model can predict the maximum classes o…

astro-ph.SR2018★ 173 cited

Deep Flare Net (DeFN) model for solar flare prediction

Naoto Nishizuka, Komei Sugiura, Yuki Kubo +2

We developed a solar flare prediction model using a deep neural network (DNN), named Deep Flare Net (DeFN). The model can calculate the probability of flares occurring in the follo…

astro-ph.SR2018★ 36 cited

Flux Rope Breaking and Formation of a Rotating Blowout Jet

Navin Chandra Joshi, Naoto Nishizuka, Boris Filippov +2

We analyzed a small flux rope eruption converted into a helical blowout jet in a fan-spine configuration using multi-wavelength observations taken by SDO, which occurred near the l…

astro-ph.SR2016★ 195 cited

Solar Flare Prediction Model with Three Machine-Learning Algorithms Using Ultraviolet Brightening and Vector Magnetogram

N. Nishizuka, K. Sugiura, Y. Kubo +3

We developed a flare prediction model using machine learning, which is optimized to predict the maximum class of flares occurring in the following 24 h. Machine learning is used to…

astro-ph.SR2013★ 29 cited

The Role of a Flux Rope Ejection in Three-dimensional Magnetohydrodynamic Simulation of a Solar Flare

Keisuke Nishida, Naoto Nishizuka, Kazunari Shibata

We investigated the dynamic evolution of a 3-dimensional (3D) flux rope eruption and magnetic reconnection process in a solar flare, by simply extending 2-dimensional (2D) resistiv…

astro-ph.SR2013★ 48 cited

The Power-Law Distribution of Flare Kernels and Fractal Current Sheets in a Solar Flare

N. Nishizuka, A. Asai, H. Takasaki +2

We report a detailed examination of the fine structure inside flare ribbons and the temporal evolution of this fine structure during the X2.5 solar flare that occurred on 2004 Nove…

astro-ph.SR2013★ 60 cited

Multiple Plasmoid Ejections and Associated Hard X-ray Bursts in the 2000 November 24 Flare

N. Nishizuka, H. Takasaki, A. Asai +1

The Soft X-ray Telescope (SXT) on board Yohkoh revealed that the ejection of X-ray emitting plasmoid is sometimes observed in a solar flare. It was found that the ejected plasmoid…