243 citations · 1.1k across the 33 of their papers we have counts for
33 papers
Magnetic switchback formation: a review of proposed mechanisms
Peter F. Wyper, Jonathan Squire, Etienne Pariat +19
Magnetic switchbacks are large amplitude deflections of the magnetic field within the solar wind. They are Alfvénic in character and so are associated with a spike in velocity and…
Uniturbulence and Alfvén Wave Solar Model in MPI-AMRVAC
M. McMurdo, T. Van Doorsselaere, N. Magyar +2
The coronal heating problem remains a fundamental challenge in solar physics. While AWSoM-type models (Alfvén Wave Solar Model) have proven highly successful in reproducing the lar…
Uniturbulence and Alfven wave solar model
Tom Van Doorsselaere, M. Valeria Sieyra, Norbert Magyar +2
AWSOM-type models (Van der Holst et al. 2014) have been very successful in describing the solar atmosphere by incorporating the Alfven wave driving as extra contributions in the gl…
Can Alfvénic Fluctuations Affect the Correlation and Complexity of Magnetic Fields in Magnetic Ejecta? A Case Study Based on Multi-Spacecraft Measurements at 1~au
Camilla Scolini, Bin Zhuang, Noé Lugaz +4
We investigate whether Alfvénic fluctuations (AFs) can affect the structure of magnetic ejecta (MEs) within interplanetary coronal mass ejections (ICMEs). We study an ICME observed…
Solar wind data analysis aided by synthetic modeling: a better understanding of plasma-frame variations from temporal data
Norbert Magyar, Jaye Verniero, Adam Szabo +2
In-situ measurements of the solar wind, a turbulent and anisotropic plasma flow originating at the Sun, are mostly carried out by single spacecraft, resulting in one-dimensional ti…
Validity of using Elsässer variables to study the interaction of compressible solar wind fluctuations with a coronal mass ejection
Chaitanya Prasad Sishtla, Jens Pomoell, Norbert Magyar +2
Alfvénic fluctuations, as modelled by the non-linear interactions of Alfvén waves of various scales, are seen to dominate solar wind turbulence. However, there is also a non-neglig…
The magnetohydrodynamic equations in terms of waveframe variables
Tom Van Doorsselaere, Norbert Magyar, M. Valeria Sieyra +1
Generalising the Elsasser variables, we introduce the Q-variables. These are more flexible than the Elsasser variables, because they also allow to track waves with phase speeds dif…
The Effect of the Parametric Decay Instability on the Morphology of Coronal Type III Radio Bursts
Chaitanya Prasad Sishtla, Immanuel Christopher Jebaraj, Jens Pomoell +4
The nonlinear evolution of Alfvén waves in the solar corona leads to the generation of Alfvénic turbulence. This description of the Alfvén waves involves parametric instabilities w…
On the Role of Alfvenic Fluctuations as Mediators of Coherence within Interplanetary Coronal Mass Ejections: Investigation of Multi-Spacecraft Measurements at 1 au
Camilla Scolini, Noe Lugaz, Reka M. Winslow +3
Interplanetary coronal mass ejections (ICMEs) are defined as ''coherent'' if they are capable of responding to external perturbations in a collective manner. This implies that info…
Phase mixing and the 1/f spectrum in the solar wind
Norbert Magyar, Tom Van Doorsselaere
The origin and evolution of the 1/f power law observed in the energy spectrum of solar coronal and solar wind fluctuations at scales of around an hour is not entirely understood. S…
High frequency decayless waves with significant energy in Solar Orbiter/EUI observations
Elena Petrova, Norbert Magyar, Tom Van Doorsselaere +1
High-frequency wave phenomena present a great deal of interest as one of the possible candidates to contribute to the energy input required to heat the corona as a part of the AC h…
The dynamics and observability of circularly polarized kink waves
N. Magyar, T. Duckenfield, T. Van Doorsselaere +1
Context. Kink waves are routinely observed in coronal loops. Resonant absorption is a well-accepted mechanism that extracts energy from kink waves. Nonlinear kink waves are know to…
Kink oscillations of coronal loops
V. M. Nakariakov, S. A. Anfinogentov, P. Antolin +13
Kink oscillations of coronal loops, i.e., standing kink waves, is one of the most studied dynamic phenomena in the solar corona. The oscillations are excited by impulsive energy re…
Non-linear damping of standing kink waves computed with Elsasser variables
Tom Van Doorsselaere, Marcel Goossens, Norbert Magyar +2
In a previous paper, we computed the energy density and the non-linear energy cascade rate for transverse kink waves using Elsasser variables. In this paper, we focus on the standi…
Could switchbacks originate in the lower solar atmosphere? II. Propagation of switchbacks in the solar corona
Norbert Magyar, Dominik Utz, Robertus Erdélyi +1
The magnetic switchbacks observed recently by the Parker Solar Probe have raised the question about their nature and origin. One of the competing theories of their origin is the in…
Could switchbacks originate in the lower solar atmosphere? I. Formation mechanisms of switchbacks
Norbert Magyar, Dominik Utz, Robertus Erdélyi +1
The recent rediscovery of magnetic field switchbacks or deflections embedded in the solar wind flow by the Parker Solar Probe mission lead to a huge interest in the modelling of th…
Coronal heating by MHD waves
Tom Van Doorsselaere, Abhishek K. Srivastava, Patrick Antolin +9
The heating of the solar chromosphere and corona to the observed high temperatures, imply the presence of ongoing heating that balances the strong radiative and thermal conduction…
MHD Waves in open coronal structures
D. Banerjee, S. Krishna Prasad, V. Pant +8
Modern observatories have revealed the ubiquitous presence of magnetohydrodynamic waves in the solar corona. The propagating waves (in contrast to the standing waves) are usually o…
Three-dimensional simulations of the inhomogeneous Low Solar Wind
N. Magyar, V. M. Nakariakov
In the near future, Parker Solar Probe will put theories about the dynamics and nature of the transition between the solar corona and the solar wind to stringent tests. The most po…
Wave pressure and energy cascade rate of kink waves computed with Elsasser variables
Tom Van Doorsselaere, Bo Li, Marcel Goossens +2
Numerical simulations have revealed a new type of turbulence of unidirectional waves in a plasma that is perpendicularly structured (Magyar et al. 2017), named uniturbulence. For t…
Standing kink waves in sigmoid solar coronal loops: implications for coronal seismology
N. Magyar, V. M. Nakariakov
Using full three-dimensional magnetohydrodynamic numerical simulations, we study the effects of magnetic field sigmoidity or helicity on the properties of the fundamental kink osci…
Understanding uniturbulence: self-cascade of MHD waves in the presence of inhomogeneities
N. Magyar, T. Van Doorsselaere, M. Goossens
It is widely accepted in the MHD turbulence community that the nonlinear cascade of wave energy requires counter-propagating Alfvénic wave-packets, along some mean magnetic field.…
Investigating `dark' energy in the solar corona using forward modeling of MHD waves
Vaibhav Pant, Norbert Magyar, Tom Van Doorsselaere +1
It is now well established that the Alfvénic waves are ubiquitous in the solar corona. However, the Alfvénic wave energy estimated from the Doppler velocity measurements in the cor…
The nature of Elsässer variables in compressible MHD
N. Magyar, T. Van Doorsselaere, M. Goossens
The Elsässer variables are often used in studies of plasma turbulence, in helping differentiate between MHD waves propagating parallel or anti-parallel to the main magnetic field.…