activity
20162026
most citedHigh-resolution observations of flare precursors in the low solar atmosphere

112 citations · 211 across the 11 of their papers we have counts for

collaborators

11 papers

astro-ph.SR2026

Statistical Analysis of Minifilament Eruptions Using Full-disk H Blue-wing Observations at Big Bear Solar Observatory

Artin Khaleghi, Qin Li, Nengyi Huang +2

This paper presents a comprehensive statistical analysis of minifilament eruptions (MFEs) using high-cadence full-disk H blue-wing observations from Big Bear Solar Observatory.…

astro-ph.SR2025

Fine Structures of Tiny Quiet Sun Jets Observed by Solar Orbiter and Big Bear Solar Observatory

Jeongwoo Lee, Dana Longcope, Junmu Youn +3

We present the first joint high-resolution observations of small-scale EUV jets using Solar Orbiter(SolO)'s Extreme Ultraviolet Imager and High Resolution Imager (HRI) and H ima…

astro-ph.SR2025★ 2 cited

High-resolution Observation of Mini-Filament Eruptions Near Coronal Hole Boundary and Their Response in Solar Corona

Nengyi Huang, Haimin Wang

We investigated mini-filament (MF) eruptions near coronal hole (CH) boundaries to explore their role in coronal dynamics and their potential contributions to the solar wind. Using…

astro-ph.SR2023

Extreme Red-wing Enhancements of UV Lines During the 2022 March 30 X1.3 Solar Flare

Yan Xu, Graham S. Kerr, Vanessa Polito +3

Here we present the study of a compact emission source during an X1.3 flare on 2022-March-30. Within a ~s period (17:34:48 UT to 17:35:29 UT), IRIS observations show spectr…

astro-ph.SR2021★ 34 cited

He I 10830 Å Dimming During Solar Flares, I. The Crucial Role of Non-Thermal Collisional Ionisations

Graham S. Kerr, Yan Xu, Joel C. Allred +4

While solar flares are predominantly characterised by an intense broadband enhancement to the solar radiative output, certain spectral lines and continua will, in theory, exhibit f…

astro-ph.SR2020★ 9 cited

Comparison of Enhanced Absorption in He I 10830 Å in Observations and Modeling During the Early Phase of a Solar Flare

Nengyi Huang, Viacheslav M. Sadykov, Yan Xu +2

The He I 10830 Å triplet is a very informative indicator of chromospheric activities as the helium is the second most abundant element in the solar atmosphere. Taking advantage of…

astro-ph.SR2018★ 17 cited

Collective Study of Polar Crown Filaments in the Past Four Solar Cycles

Yan Xu, Werner Potzi, Hewei Zhang +3

Polar Crown Filaments (PCFs) form above the magnetic polarity inversion line, which separates the unipolar polar fields and the nearest dispersed fields from trailing part of activ…

astro-ph.SR2018★ 4 cited

Relationship between Intensity of White-Light Flares and Proton Flux of Solar Energetic Particles

Nengyi Huang, Yan Xu, Haimin Wang

Solar energetic particles (SEPs), including protons and heavy ions, are believed to be accelerated either by CME shock or by magnetic reconnection. The latter also produces solar f…

astro-ph.SR2018★ 18 cited

Transient rotation of photospheric vector magnetic fields associated with a solar flare

Yan Xu, Wenda Cao, Kwangsu Ahn +7

As one of the most violent eruptions on the Sun, flares are believed to be powered by magnetic reconnection. The fundamental physics involving the release, transfer and deposition…

astro-ph.SR2017★ 112 cited

High-resolution observations of flare precursors in the low solar atmosphere

Haimin Wang, Chang Liu, Kwangsu Ahn +9

Solar flares are generally believed to be powered by free magnetic energy stored in the corona, but the build up of coronal energy alone may be insufficient for the imminent flare…

astro-ph.SR2016★ 15 cited

The Energetics of White-light Flares Observed by SDO/HMI and RHESSI

Nengyi Huang, Yan Xu, Haimin Wang

White-light (WL) flares have been observed and studied more than a century since the first discovery. However, some fundamental physics behind the brilliant emission remains highly…