157 citations · 1.3k across the 36 of their papers we have counts for
36 papers
Hybrid data-driven magnetofrictional and magnetohydrodynamic simulations of an eruptive solar active region
A. Afanasyev, Y. Fan, M. Kazachenko +1
We present first results of the hybrid data-driven magnetofrictional (MF) and data-constrained magnetohydrodynamic (MHD) simulations of solar active region NOAA 11158, which produc…
The Puzzling Structure of Solar Convection: Window into the Dynamo
Nicholas A. Featherstone, Kyle C. Augustson, Jonathan M. Aurnou +25
The operation of the solar dynamo, with all of its remarkable spatio-temporal ordering, remains an outstanding problem of modern solar physics. A number of mechanisms that might pl…
Eruption of a Magnetic Flux Rope in a Comprehensive Radiative Magnetohydrodynamic Simulation of flare-productive active regions
Feng Chen, Matthias Rempel, Yuhong Fan
Radiative magnetohydrodynamic simulation includes sufficiently realistic physics to allow for the synthesis of remote sensing observables that can be quantitatively compared with o…
Comprehensive radiative MHD simulations of eruptive flares above collisional polarity inversion lines
Matthias Rempel, Georgios Chintzoglou, Mark C. M. Cheung +2
We present a new simulation setup using the MURaM radiative Magnetohydrodynamic (MHD) code that allows to study the formation of collisional polarity inversion lines (cPILs) in the…
Radio Imaging Spectropolarimetry of CMEs and CME Progenitors
Bin Chen, Timothy S. Bastian, Sarah Gibson +8
Coronal mass ejections (CMEs) are the most important drivers of space weather. Central to most CMEs is thought to be the eruption of a bundle of highly twisted magnetic field lines…
Data-constrained MHD simulation for the eruption of a filament-sigmoid system in solar active region 11520
Tie Liu, Yuhong Fan, Yingna Su +3
The separation of a filament and sigmoid is observed during an X1.4 flare on July 12, 2012 in solar active region 11520, but the corresponding magnetic field change is not clear. W…
An improved MHD simulation of the 2006 December 13 coronal mass ejection of active region NOAA 10930
Yuhong Fan
We present a magnetohydrodynamic (MHD) simulation of the coronal mass ejection (CME) on 13 December 2006 in the emerging delta-sunspot active region 10930, improving upon a previou…
Validation of the PDFI_SS method for electric field inversions using a magnetic flux emergence simulation
Andrey N. Afanasyev, Maria D. Kazachenko, Yuhong Fan +2
Knowledge of electric fields in the photosphere is required to calculate the electromagnetic energy flux through the photosphere and set up boundary conditions for data-driven magn…
Measuring the magnetic origins of solar flares, CMEs and Space Weather
Philip Judge, Matthias Rempel, Rana Ezzeddine +11
We take a broad look at the problem of identifying the magnetic solar causes of space weather. With the lackluster performance of extrapolations based upon magnetic field measureme…
A Comprehensive Radiative Magnetohydrodynamics Simulation of Active Region Scale Flux Emergence from the Convection Zone to the Corona
Feng Chen, Matthias Rempel, Yuhong Fan
We present a comprehensive radiative magnetohydrodynamic simulation of the quiet Sun and large solar active regions. The 197 Mm wide simulation domain spans from 18 (10) Mm beneath…
SunCET: A compact EUV instrument to fill a critical observational gap
James Paul Mason, Phillip C. Chamberlin, Daniel Seaton +16
The Sun Coronal Ejection Tracker (SunCET) is an extreme ultraviolet imager and spectrograph instrument concept for tracking coronal mass ejections through the region where they exp…
Simulations of prominence eruption preceded with large amplitude longitudinal oscillations and draining
Yuhong Fan
We present magnetohydrodynamic (MHD) simulations of the evolution from quasi-equilibrium to eruption of a prominence-forming twisted coronal flux rope under a coronal streamer. We…
MHD simulation of prominence-cavity system
Yuhong Fan, Tie Liu
We present magnetohydrodynamic simulation of the evolution from quasi-equilibrium to onset of eruption of a twisted, prominence-forming coronal magnetic flux rope underlying a coro…
What the sudden death of solar cycles can tell us about the nature of the solar interior
Scott W. McIntosh, Robert J. Leamon, Ricky Egeland +3
We observe the abrupt end of solar activity cycles at the Sun's equator by combining almost 140 years of observations from ground and space. These "terminator" events appear to be…
The eruption of a prominence carrying coronal flux rope: forward synthesis of the magnetic field strength measurement by the COronal Solar Magnetism Observatory Large Coronagraph
Yuhong Fan, Sarah Gibson, Steve Tomczyk
From a magnetohydrodynamic (MHD) simulation of the eruption of a prominence hosting coronal flux rope, we carry out forward synthesis of the circular polarization signal (Stokes V…
MHD simulation of prominence eruption
Yuhong Fan
We carry out magnetohydrodynamic (MHD) simulations of the quasi-static evolution and eruption of a twisted coronal flux rope under a coronal streamer built up by an imposed flux em…
MHD simulations of the eruption of coronal flux ropes under coronal streamers
Yuhong Fan
Using three-dimensional magnetohydrodynamic (MHD) simulations, we investigate the eruption of coronal flux ropes underlying coronal streamers and the development of a prominence er…
Emergence of magnetic flux generated in a solar convective dynamo. I: Formation of Sunspots and Active regions, and Origin of Their Asymmetries
Feng Chen, Matthias Rempel, Yuhong Fan
We present a realistic numerical model of sunspot and active region formation based on the emergence of flux bundles generated in a solar convective dynamo. To this end we use the…
On the Observation and Simulation of Solar Coronal Twin Jets
Jiajia Liu, Fang Fang, Yuming Wang +3
We present the first observation, analysis and modeling of solar coronal twin jets, which occurred after a preceding jet. Detailed analysis on the kinetics of the preceding jet rev…
ROAM: a Radial-basis-function Optimization Approximation Method for diagnosing the three-dimensional coronal magnetic field
K. Dalmasse, D. W. Nychka, S. E. Gibson +2
The Coronal Multichannel Polarimeter (CoMP) routinely performs coronal polarimetric measurements using the Fe XIII 10747 and 10798 lines, which are sensitive to the coronal…
Modeling the initiation of the 2006 December 13 coronal mass ejection in AR 10930: the structure and dynamics of the erupting flux rope
Yuhong Fan
We carry out a three-dimensional magneto-hydrodynamic (MHD) simulation to model the initiation of the coronal mass ejection (CME) on 13 December 2006 in the emerging δ-sunspot acti…
MHD Equilibria and Triggers for Prominence Eruption
Yuhong Fan
Magneto-hydrodynamic (MHD) simulations of the emergence of twisted magnetic flux tubes from the solar interior into the corona are discussed to illustrate how twisted and sheared c…
Differential Rotation in Solar Convective Dynamo Simulations
Yuhong Fan, Fang Fang
We carry out a magneto-hydrodynamic (MHD) simulation of convective dynamo in the rotating solar convective envelope driven by the solar radiative diffusive heat flux. The simulatio…
Numerical Study on Emergence of Kinked Flux Tube for Understanding of Possible Origin of Delta-spot Regions
Shinsuke Takasao, Yuhong Fan, Mark. C. M. Cheung +1
We carried out a magnetohydrodynamics simulation where a subsurface twisted kink-unstable flux tube emerges from the solar interior to the corona. Unlike the previous expectations…