14.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Goddard Space Flight CenterUS361 papers
- Marshall Space Flight CenterUS357 papers
- Centre National de la Recherche ScientifiqueFR280 papers
- Max Planck Institute for Extraterrestrial PhysicsDE240 papers
- University of Maryland, College ParkUS239 papers
- Universities Space Research AssociationUS214 papers
- Stanford UniversityUS212 papers
- National Institute for AstrophysicsIT196 papers
- University of Rome Tor VergataIT184 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR179 papers
- University of PaduaIT178 papers
- Istituto Nazionale di Fisica Nucleare, Roma Tor VergataIT175 papers
24 papers · 2 filters
The Missing Cool Corona in the Flat Magnetic Field around Solar Active Regions
Talwinder Singh, Alphonse C. Sterling, Ronald L. Moore
SDO/AIA images the full solar disk in several EUV bands that are each sensitive to coronal plasma emissions of one or more specific temperatures. We observe that when isolated acti…
Magnetic reconnections in the presence of three-dimensional magnetic nulls and quasi-separatrix layers
Sanjay Kumar, Sushree S. Nayak, Avijeet Prasad +1
Three-dimensional (3D) magnetohydrodynamic simulations are carried out to explore magnetic reconnections in the presence of 3D magnetic nulls and quasi-separatrix layers (QSLs). Th…
Possible Evolution of Minifilament-Eruption-Produced Solar Coronal Jets, Jetlets, and Spicules, into Magnetic-Twist-Wave "Switchbacks" Observed by the Parker Solar Probe (PSP)
Alphonse C. Sterling, Ronald L. Moore, Navdeep K. Panesar +1
Many solar coronal jets result from erupting miniature-filament ("minifilament") magnetic flux ropes that reconnect with encountered surrounding far-reaching field. Many of those m…
Hot Plasma Flows and Oscillations in the Loop-top Region During the September 10 2017 X8.2 Solar Flare
Katharine K. Reeves, Vanessa Polito, Bin Chen +4
In this study, we investigate motions in the hot plasma above the flare loops during the 2017 September 10 X8.2 flare event. We examine the region to the south of the main flare ar…
Detection of small magnetic flux ropes from the third and fourth Parker Solar Probe encounters
L. -L. Zhao, G. P. Zank, Q. Hu +22
We systematically search for magnetic flux rope structures in the solar wind to within the closest distance to the Sun of 0.13 AU, using data from the third and fourth orbits of th…
On the quasi-three dimensional configuration of magnetic clouds
Qiang Hu, Wen He, Jiong Qiu +2
We develop an optimization approach to model the magnetic field configuration of magnetic clouds, based on a linear-force free formulation in three dimensions. Such a solution, dub…
On Making Magnetic-Flux-Rope Loops for Solar Bipolar Magnetic Regions of All Sizes by Convection Cells
Ronald L. Moore, Sanjiv K. Tiwari, Navdeep K. Panesar +1
We propose that the flux-rope loop that emerges to become any bipolar magnetic region (BMR) is made by a convection cell of the -loop's size from initially-horizontal magnet…
Magnetohydrodynamic Simulation of Magnetic Null-point Reconnections and Coronal dimmings during the X2.1 flare in NOAA AR 11283
Avijeet Prasad, Karin Dissauer, Qiang Hu +4
The magnetohydrodynamics of active region NOAA 11283 is simulated using an initial non-force-free magnetic field extrapolated from its photospheric vector magnetogram. We focus on…
Do All Interplanetary Coronal Mass Ejections Have A Magnetic Flux Rope Structure Near 1 AU?
Hongqiang Song, Jie Zhang, Xin Cheng +6
Interplanetary coronal mass ejections (ICMEs) often consist of a shock wave, sheath region, and ejecta region. The ejecta regions are divided into two broad classes: magnetic cloud…
Sequential Lid Removal in a Triple-Decker Chain of CME-Producing Solar Eruptions
Navin Chandra Joshi, Alphonse C. Sterling, Ronald L. Moore +1
We investigate the onsets of three consecutive coronal mass ejection (CME) eruptions in 12 hours from a large bipolar active region (AR) observed by SDO, STEREO, RHESSI, and GOES.…
An Eruptive Circular-ribbon Flare with Extended Remote Brightenings
Chang Liu, Avijeet Prasad, Jeongwoo Lee +1
We study an eruptive X1.1 circular-ribbon flare on 2013 November 10, combining multiwavelength observations with a coronal field reconstruction using a non-force-free field method.…
A data-driven MHD model of the weakly-ionized chromosphere
Mehmet Sarp Yalim, Avijeet Prasad, Nikolai Pogorelov +2
The physics of the solar chromosphere is complex from both theoretical and modeling perspectives. The plasma temperature from the photosphere to corona increases from ~5,000 K to ~…
Effects of Cowling Resistivity in the Weakly-Ionized Chromosphere
Mehmet Sarp Yalim, Avijeet Prasad, Nikolai Pogorelov +2
The physics of the solar chromosphere is complex from both theoretical and modeling perspectives. The plasma temperature from the photosphere to corona increases from ~5,000 K to ~…
Onset of Magnetic Explosion in Solar Coronal Jets in Quiet Regions on the Central Disk
Navdeep K. Panesar, Ronald L. Moore, Alphonse C. Sterling
We examine the initiation of 10 coronal jet eruptions in quiet regions on the central disk, thereby avoiding near-limb spicule-forest obscuration of the slow-rise onset of the mini…
Coronal-Jet-Producing Minifilament Eruptions as a Possible Source of Parker Solar Probe (PSP) Switchbacks
Alphonse C. Sterling, Ronald L. Moore
The Parker Solar Probe (PSP) has observed copious rapid magnetic field direction changes in the near-Sun solar wind. These features have been called "switchbacks," and their origin…
Network Jets as the Driver of Counter-Streaming Flows in a Solar Filament/Filament Channel
Navdeep K. Panesar, Sanjiv K. Tiwari, Ronald L. Moore +1
Counter-streaming flows in a small (100" -long) solar filament/filament channel are directly observed in high-resolution SDO/AIA EUV images of a region of enhanced magnetic network…
Forecasting Solar Cycle 25 using Deep Neural Networks
B. Benson, W. D. Pan, A. Prasad +2
With recent advances in the field of machine learning, the use of deep neural networks for time series forecasting has become more prevalent. The quasi-periodic nature of the solar…
A Solar Magnetic-fan Flaring Arch Heated by Non-thermal Particles and Hot Plasma from an X-ray Jet Eruption
Kyoung-Sun Lee, Hirohisa Hara, Kyoko Watanabe +10
We have investigated an M1.3 limb flare, which develops as a magnetic loop/arch that fans out from an X-ray jet. Using Hinode/EIS, we found that the temperature increases with heig…
Possible Production of Solar Spicules by Microfilament Eruptions
Alphonse C. Sterling, Ronald L. Moore, Tanmoy Samanta +1
We examine Big Bear Solar Observatory (BBSO) Goode Solar Telescope (GST) high-spatial resolution (0''.06), high-cadence (3.45 s), H-alpha-0.8 Angstrom images of central-disk solar…
How Does Magnetic Reconnection Drive the Early Stage Evolution of Coronal Mass Ejections?
Chunming Zhu, Jiong Qiu, Paulett Liewer +3
Theoretically, CME kinematics are related to magnetic reconnection processes in the solar corona. However, the current quantitative understanding of this relationship is based on t…
Locating Hot Plasma in Small Flares using Spectroscopic Overlappogram Data from the Hinode {\it EUV} Imaging Spectrometer
Louise Harra, Sarah Matthews, David Long +6
One of the key processes associated with the "standard" flare model is chromospheric evaporation, a process where plasma heated to high temperatures by energy deposition at the fla…
A Modified Spheromak Model Suitable for Coronal Mass Ejection Simulations
Talwinder Singh, Mehmet S. Yalim, Nikolai V. Pogorelov +1
Coronal Mass Ejections (CMEs) are one of the primary drivers of extreme space weather. They are large eruptions of mass and magnetic field from the solar corona and can travel the…
Identification of Pre-flare Processes and Their Possible Role in Driving a Large-scale Flux Rope Eruption with Complex M-class Flare in the Active Region NOAA 12371
Prabir K. Mitra, Bhuwan Joshi, Avijeet Prasad
In this article, we study the origin of precursor flare activity and investigate its role towards triggering the eruption of a flux rope which resulted into a dual-peak M-class fla…
Data-driven MHD Simulation of the Formation and Initiation of a Large-scale Pre-flare Magnetic Flux Rope in Solar Active Region 12371
Wen He, Chaowei Jiang, Peng Zou +4
Solar eruptions are the most powerful drivers of space weather. To understand their cause and nature, it is crucial to know how the coronal magnetic field evolves before eruption.…