153 citations · 1.2k across the 40 of their papers we have counts for
41 papers
Oscillatory reconnection and resonant response to wave excitation in 2D coronal null points
Konstantinos Karampelas, Tom Van Doorsselaere
Null points are magnetic field singularities, where the magnetic field strength rapidly drops to zero. In the solar atmosphere, null points are known sites of magnetic reconnection…
Expanding stellar horizons with polarized light
J. Vandersnickt, R. Ochoa Armenta, V. Vanlaer +16
The polarization of light is a critically under-utilized, rich source of information in astronomy. For stars in particular, surface magnetism polarization that can be detected 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…
Accessing the fine temporal scale of EUV brightenings and their quasi-periodic pulsations: 1 second cadence observations by Solar Orbiter/EUI
Daye Lim, Tom Van Doorsselaere, Nancy Narang +7
Small scale extreme ultraviolet (EUV) transient brightenings are observationally abundant and critically important to investigate. Determining whether they share the same physical…
Spectra of standing kink waves in loops and the effects of the lower solar atmosphere
Konstantinos Karampelas, Daye Lim, Tom Van Doorsselaere +1
Understanding the effects of the lower solar atmosphere on the spectrum of standing kink oscillations of coronal loops, in both the decaying and decayless regime, is essential for…
Coronal heating
Iñigo Arregui, Tom Van Doorsselaere
Coronal heating refers to the physical processes that shape and structure the corona of the Sun and are responsible for its multi-million Kelvin temperatures. These processes are r…
Quasi-periodic pulsations in solar flares: a key diagnostic of energy release on the Sun
Andrew Inglis, Laura Hayes, Silvina Guidoni +18
Solar flares are among the most powerful and disruptive events in our solar system, however the physical mechanisms driving and transporting this energetic release are not fully un…
Impulsively Generated Kink Wave Trains in Solar Coronal Slabs
Mingzhe Guo, Bo Li, Tom Van Doorsselaere +1
We numerically follow the response of density-enhanced slabs to impulsive, localized, transverse velocity perturbations by working in the framework of ideal magnetohydrodynamics (M…
Quasimodes in the cusp continuum in nonuniform magnetic flux tubes
Michaël Geeraerts, Pieter Vanmechelen, Tom Van Doorsselaere +1
The study of MHD waves is important both for understanding heating in the solar atmosphere and for solar atmospheric seismology. The analytical investigation of wave mode propertie…
Damping of slow surface kink modes in solar photospheric waveguides modeled by one-dimensional inhomogeneities
Shao-Xia Chen, Bo Li, Tom Van Doorsselaere +3
Given the recent interest in magnetohydrodynamic (MHD) waves in pores and sunspot umbrae, we examine the damping of slow surface kink modes (SSKMs) by modeling solar photospheric w…
Coronal Density and Temperature Profiles Calculated by Forward Modeling EUV Emission Observed by SDO/AIA
D. J. Pascoe, A. Smyrli, T. Van Doorsselaere
We present a model for the intensity of optically thin EUV emission for a plasma atmosphere. We apply our model to the solar corona as observed using the six optically thin EUV cha…
Excitation of decay-less transverse oscillations of coronal loops by random motions
A. N. Afanasyev, T. Van Doorsselaere, V. M. Nakariakov
The relatively large-amplitude decaying regime of transverse oscillations of coronal loops has been known for two decades and interpreted in terms of MHD kink modes of cylindrical…
A blueprint of state-of-the-art techniques for detecting quasi-periodic pulsations in solar and stellar flares
Anne-Marie Broomhall, James R. A. Davenport, Laura A. Hayes +9
Quasi-periodic pulsations (QPPs) appear to be a common feature observed in the light curves of both solar and stellar flares. However, their quasi-periodic nature, along with the f…
Resonant absorption in expanding coronal magnetic flux tubes with uniform density
Thomas Howson, Ineke De Moortel, Patrick Antolin +2
Aims. We investigate the transfer of energy between a standing kink mode and azimuthal Alfven waves within an expanding flux tube. We consider the process of resonant absorption in…
The Temperature-dependent Damping of Propagating Slow Magnetoacoustic Waves
S. Krishna Prasad, D. B. Jess, T. Van Doorsselaere
The rapid damping of slow magnetoacoustic waves in the solar corona has been extensively studied in previous years. Most studies suggest that thermal conduction is a dominant contr…
Universal scaling behavior of resonant absorption
Dae Jung Yu, Tom Van Doorsselaere
Mode conversion and resonant absorption are crucial mechanisms for wave transport and absorption. Scaling behavior of mode conversion or resonant absorption is well-known for elect…
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.…
Wave heating in simulated multi-stranded coronal loops
Mingzhe Guo, Tom Van Doorsselaere, Konstantinos Karampelas +1
It has been found that the Kelvin-Helmholtz instability (KHI) induced by both transverse and torsional oscillations in coronal loops can reinforce the effects of wave heating. In t…
Coronal loop transverse oscillations excited by different driver frequencies
Andrey Afanasyev, Konstantinos Karampelas, Tom Van Doorsselaere
We analyse transverse oscillations of a coronal loop excited by continuous monoperiodic motions of the loop footpoint at different frequencies in the presence of gravity. Using the…
Wave modes excited by photospheric p-modes and mode conversion in a multi-loop system
Julia M. Riedl, Tom Van Doorsselaere, Irantzu Calvo Santamaria
Context. Waves are ubiquitous in the solar corona and there are indications that they are excited by photospheric p-modes. However, it is unclear how p-modes in coronal loops are c…
Forward Modeling of SDO/AIA and X-Ray Emission from a Simulated Flux Rope Ejection
Xiaozhou Zhao, Chun Xia, Tom Van Doorsselaere +2
We conduct forward-modeling analysis based on our 2.5 dimensional magnetohydrodynamics (MHD) simulation of magnetic flux rope (MFR) formation and eruption driven by photospheric co…
An Analytical Model of the Kelvin-Helmholtz Instability of Transverse Coronal Loop Oscillations
Mihai Barbulescu, Michael S. Ruderman, Tom Van Doorsselaere +1
Recent numerical simulations have demonstrated that transverse coronal loop oscillations are susceptible to the Kelvin-Helmholtz (KH) instability due to the counter-streaming motio…
Wave heating in gravitationally stratified coronal loops in the presence of resistivity and viscosity
K. Karampelas, T. Van Doorsselaere, M. Guo
In recent years, coronal loops have been the focus of studies related to the damping of different magnetohydrodynamic (MHD) surface waves and their connection with coronal seismolo…
Non-equilibrium Ionization Effects on Extreme-Ultraviolet Emissions Modulated by Standing Sausage Modes in Coronal Loops
Mijie Shi, Bo Li, Tom Van Doorsselaere +2
Forward-modeling the emission properties in various passbands is important for confidently identifying magnetohydrodynamic waves in the structured solar corona. We examine how Non-…