The eruption of a small-scale emerging flux rope as the driver of an M-class flare and of a coronal mass ejection

@article{Yan2017TheEO,
  title={The eruption of a small-scale emerging flux rope as the driver of an M-class flare and of a coronal mass ejection},
  author={X. L. Yan and C. W. Jiang and Zhike Xue and J. C. Wang and E. R. Priest and L. H. Yang and Defang Kong and Wenda Cao and Haisheng Ji},
  journal={The Astrophysical Journal},
  year={2017},
  volume={845},
  pages={18}
}
Solar flares and coronal mass ejections are the most powerful explosions in the Sun. They are major sources of potentially destructive space weather conditions. However, the possible causes of their initiation remain controversial. Using high-resolution data observed by the New Solar Telescope of Big Bear Solar Observaotry, supplemented by Solar Dynamics Observatory observations, we present unusual observations of a small-scale emerging flux rope near a large sunspot, whose eruption produced an… 

Figures from this paper

The Role of a Tiny Brightening in a Huge Geoeffective Solar Eruption Leading to the St. Patrick’s Day Storm
The largest magnetic storm in solar cycle 24 was caused by a fast coronal mass ejection (CME) that was related to a small C9.1 flare that occurred on 15 March 2015 in solar active region (AR) NOAA
Observational Analysis on the Early Evolution of a CME Flux Rope: Preflare Reconnection and Flux Rope’s Footpoint Drift
We study the early evolution of a hot-channel-like magnetic flux rope (MFR) toward eruption. Combining with imaging observation and magnetic field extrapolation, we find that the hot channel possibly
Signatures of Magnetic Flux Ropes in the Low Solar Atmosphere Observed in High Resolution
Magnetic flux ropes (MFRs) are important physical features closely related to solar eruptive activities with potential space weather consequences. Studying MFRs in the low solar atmosphere can shed
Triggering Mechanism and Material Transfer of a Failed Solar Filament Eruption
Soar filament eruptions are often associated with solar flares and coronal mass ejections (CMEs), which are the major impacts on space weather. However, the fine structures and the trigger mechanisms
The Formation of a Small-Scale Filament After Flux Emergence on the Quiet Sun
We present observations of the formation process of a small-scale filament on the quiet Sun during 5 – 6 February 2016 and investigate its formation cause. Initially, a small dipole emerged, and its
A Small-scale Filament Eruption Inducing a Moreton Wave, an EUV Wave, and a Coronal Mass Ejection
With the launch of SDO, many EUV waves were observed during solar eruptions. However, the joint observations of Moreton and EUV waves are still relatively rare. We present an event that a small-scale
Eruption of a multi-flux-rope system in solar active region 12673 leading to the two largest flares in Solar Cycle 24
Context. Solar active region (AR) 12673 in 2017 September produced the two largest flares in Solar Cycle 24: the X9.3 flare on September 6 and the X8.2 flare on September 10. Aims. We attempt to
Formation of a Solar Filament by Magnetic Reconnection, Associated Chromospheric Evaporation, and Subsequent Coronal Condensation
We present the first observation of a solar filament formed by magnetic reconnection, associated chromospheric evaporation, and subsequent coronal condensation. Driven by shearing motion during flux
Successive X-class Flares and Coronal Mass Ejections Driven by Shearing Motion and Sunspot Rotation in Active Region NOAA 12673
We present a clear case study on the occurrence of two successive X-class flares, including a decade-class flare (X9.3) and two coronal mass ejections (CMEs) triggered by shearing motion and sunspot
...
1
2
3
4
...

References

SHOWING 1-10 OF 124 REFERENCES
Observational Evidence of a Magnetic Flux Rope Eruption Associated with the X3 Flare on 2002 July 15
We present the study of an eruption from the low solar atmosphere (photosphere/chromosphere) as seen in Transition Region and Coronal Explorer 1600 Angstrom images and with the Solar and Heliospheric
Solar Magnetic Flux Ropes
In the early 1990s, it was found that the strongest disturbances of the space–weather were associated with huge ejections of plasma from the solar corona, which took the form of magnetic clouds when
Flare-CME Models: An Observational Perspective (Invited Review)
Eruptions, flares, and coronal mass ejection (CMEs) are due to physical phenomena mainly driven by an initially force-free current-carrying magnetic field. We review some key observations relevant to
Observations of a Series of Flares and Associated Jet-like Eruptions Driven by the Emergence of Twisted Magnetic Fields
We studied temporal changes of morphological and magnetic properties of a succession of four confined flares followed by an eruptive flare using the high-resolution New Solar Telescope (NST)
Observation of an evolving magnetic flux rope before and during a solar eruption.
TLDR
The observations suggest that the instability of the magnetic flux rope triggers the eruption, thus making a major addition to the traditional magnetic-reconnection paradigm.
MULTIWAVELENGTH OBSERVATIONS OF SMALL-SCALE RECONNECTION EVENTS TRIGGERED BY MAGNETIC FLUX EMERGENCE IN THE SOLAR ATMOSPHERE
The interaction between emerging magnetic flux and the pre-existing ambient field has become a "hot" topic for both numerical simulations and high-resolution observations of the solar atmosphere. The
Plasma Jets and Eruptions in Solar Coronal Holes: A Three-dimensional Flux Emergence Experiment
A three-dimensional (3D) numerical experiment of the launching of a hot and fast coronal jet followed by several violent eruptions is analyzed in detail. These events are initiated through the
Witnessing magnetic twist with high-resolution observation from the 1.6-m New Solar Telescope
TLDR
Observations of a flaring using the highest resolution chromospheric images from the 1.6-m New Solar Telescope at Big Bear Solar Observatory, supplemented by a magnetic field extrapolation model provide a first opportunity to witness the detailed structure and evolution of flux ropes in the low solar atmosphere.
Onset of the Magnetic Explosion in Solar Flares and Coronal Mass Ejections
We present observations of the magnetic field configuration and its transformation in six solar eruptive events that show good agreement with the standard bipolar model for eruptive flares. The
On-Disc Observations of Flux Rope Formation Prior to Its Eruption
TLDR
Observations of the global magnetic flux distribution indicate that an interaction between newly emerged magnetic flux and pre-existing sunspot field in the days prior to the eruption may have enabled the coronal flux rope to form via tether-cutting-like reconnection in the corona.
...
1
2
3
4
5
...