Sun-as-a-star analyses of various solar active events using Hα spectral images taken by SMART/SDDI

T Otsu, A Asai, K Ichimoto, TT Ishii… - The Astrophysical …, 2022 - iopscience.iop.org
Sun-as-a-star analyses in which observational data is spatially integrated are useful for
interpreting stellar data. For future applications to stellar observations, we performed Sun-as …

Multiwavelength Sun-as-a-star Analysis of the M8. 7 Flare on 2022 October 2 Using Hα and EUV Spectra Taken by SMART/SDDI and SDO/EVE

T Otsu, A Asai - The Astrophysical Journal, 2024 - iopscience.iop.org
This paper presents a multiwavelength Sun-as-a-star analysis of the M8. 7 flare on 2022
October 2, which was associated with a filament eruption and the subsequent coronal mass …

Detection of Flare-induced Plasma Flows in the Corona of EV Lac with X-ray Spectroscopy

H Chen, H Tian, H Li, J Wang, H Lu, Y Xu… - The Astrophysical …, 2022 - iopscience.iop.org
Stellar flares are characterized by sudden enhancement of electromagnetic radiation from
the atmospheres of stars. Compared to their solar counterparts, our knowledge on the …

[HTML][HTML] Stellar Flares, Superflares, and Coronal Mass Ejections—Entering the Big Data Era

K Vida, Z Kővári, M Leitzinger, P Odert, K Oláh, B Seli… - Universe, 2024 - mdpi.com
Flares, sometimes accompanied by coronal mass ejections (CMEs), are the result of sudden
changes in the magnetic field of stars with high energy release through magnetic …

Possible detection of coronal mass ejections on late-type main-sequence stars in LAMOST medium-resolution spectra

H Lu, H Tian, L Zhang, C Karoff, H Chen, J Shi… - Astronomy & …, 2022 - aanda.org
Context. Stellar coronal mass ejections (CMEs) are the primary driver of exoplanetary space
weather and may affect the habitability of exoplanets. However, detections of possible stellar …

Three-dimensional relation between coronal dimming, filament eruption, and CME-A case study of the 28 October 2021 X1. 0 event

G Chikunova, T Podladchikova, K Dissauer… - Astronomy & …, 2023 - aanda.org
Context. Coronal dimmings are localized regions of reduced emission in the extreme-
ultraviolet (EUV) and soft X-rays formed as a result of the expansion and mass loss by …

Understanding the lateral drifting of an erupting filament with a data-constrained magnetohydrodynamic simulation

JH Guo, Y Qiu, YW Ni, Y Guo, C Li… - The Astrophysical …, 2023 - iopscience.iop.org
Solar filaments often exhibit rotation and deflection during eruptions, which would
significantly affect the geoeffectiveness of the corresponding coronal mass ejections …

A data-constrained magnetohydrodynamic simulation of the X1. 0 solar flare of 2021 October 28

D Yamasaki, S Inoue, Y Bamba, J Lee… - The Astrophysical …, 2022 - iopscience.iop.org
The solar active region NOAA 12887 produced a strong X1. 0 flare on 2021 October 28,
which exhibits X-shaped flare ribbons and a circle-shaped erupting filament. To understand …

Thermodynamic and magnetic topology evolution of the X1. 0 Flare on 2021 October 28 simulated by a data-driven radiative magnetohydrodynamic model

JH Guo, YW Ni, Z Zhong, Y Guo, C Xia… - The Astrophysical …, 2023 - iopscience.iop.org
Solar filament eruptions, flares, and coronal mass ejections (CMEs) are manifestations of
drastic releases of energy in the magnetic field, which are related to many eruptive …

Is it possible to detect coronal mass ejections on solar-type stars through extreme-ultraviolet spectral observations?

Z Yang, H Tian, Y Zhu, Y Xu, L Chen… - The Astrophysical …, 2024 - iopscience.iop.org
Stellar coronal mass ejections (CMEs) from host stars are an important factor that affects the
habitability of exoplanets. Although their solar counterparts have been well observed for …