95 citations · 557 across the 21 of their papers we have counts for
21 papers
The F-CHROMA grid of 1D RADYN flare models
Mats Carlsson, Lyndsay Fletcher, Joel Allred +6
Context: Solar flares are the result of the sudden release of magnetic energy in the corona. Much of this energy goes into accelerating charged particles to high velocity. These pa…
Constraining the magnetic vector in the quiet solar photosphere and the impact of instrumental degradation
R. J. Campbell, S. Shelyag, C. Quintero Noda +3
With the advent of next generation high resolution telescopes, our understanding of how the magnetic field is organized in the internetwork (IN) photosphere is likely to advance.We…
Flare Induced Sunquake Signatures in the Ultraviolet as Observed by the Atmospheric Imaging Assembly
Sean Quinn, Mihalis Mathioudakis, Christopher J. Nelson +3
Sunquakes (SQs) have been routinely observed in the solar photosphere, but it is only recently that signatures of these events have been detected in the chromosphere. We investigat…
Flare Induced Photospheric Velocity Diagnostics
Aaron J. Monson, Mihalis Mathioudakis, Aaron Reid +2
We present radiative hydrodynamic simulations of solar flares generated by the RADYN and RH codes to study the perturbations induced in photospheric Fe I lines by electron beam hea…
Temporal evolution of small-scale internetwork magnetic fields in the solar photosphere
Ryan J. Campbell, Mihalis Mathioudakis, Manuel Collados +5
While the longitudinal field that dominates photospheric network regions has been studied extensively, small scale transverse fields have recently been found to be ubiquitous in th…
Non-LTE inversions of a confined X2.2 flare: I. Vector magnetic field in the photosphere and chromosphere
G. J. M. Vissers, S. Danilovic, J. de la Cruz Rodriguez +7
Obtaining the magnetic field vector accurately in the solar atmosphere is essential for studying changes in field topology during flares and to reliably model space weather. We tac…
Chromospheric Bubbles in Solar Flares
Aaron Reid, Bogdan Zhigulin, Mats Carlsson +1
We analyze a grid of radiative hydrodynamic simulations of solar flares to study the energy balance and response of the atmosphere to nonthermal electron beam heating. The appearan…
High-resolution spectropolarimetric observations of the temporal evolution of magnetic fields in photospheric bright points
Peter H. Keys, Aaron Reid, Mihalis Mathioudakis +7
Context. Magnetic bright points (MBPs) are dynamic, small-scale magnetic elements often found with field strengths of the order of a kilogauss within intergranular lanes in the pho…
Hydrogen Emission in Type II White-light Solar Flares
Ondřej Procházka, Aaron Reid, Mihalis Mathioudakis
Type II WLFs have weak Balmer line emission and no Balmer jump. We carried out a set of radiative hydrodynamic simulations to understand how the hydrogen radiative losses vary with…
The Chromospheric Response to the Sunquake generated by the X9.3 Flare of NOAA 12673
Sean Quinn, Aaron Reid, Mihalis Mathioudakis +3
Active region NOAA 12673 was extremely volatile in 2017 September, producing many solar flares, including the largest of solar cycle 24, an X9.3 flare of 06 September 2017. It has…
The magnetic properties of photospheric magnetic bright points with high resolution spectropolarimetry
Peter H. Keys, Aaron Reid, Mihalis Mathioudakis +7
Magnetic bright points are small-scale magnetic elements ubiquitous across the solar disk, with the prevailing theory suggesting that they form due to the process of convective col…
Mapping the magnetic field of flare coronal loops
D. Kuridze, M. Mathioudakis, H. Morgan +9
Here we report on the unique observation of flaring coronal loops at the solar limb using high resolution imaging spectropolarimetry from the Swedish 1-meter Solar Telescope. The v…
Reproducing Type II White-Light Solar Flare Observations with Electron and Proton Beam Simulations
Ondřej Procházka, Aaron Reid, Ryan O. Milligan +3
We investigate the cause of the suppressed Balmer series and the origin of the white-light continuum emission in the X1.0 class solar flare on 2014 June 11. We use radiative hydrod…
Penumbral Waves driving Solar chromospheric fan-shaped jets
A. Reid, V. M. J. Henriques, M. Mathioudakis +1
We use H imaging spectroscopy taken via the Swedish 1-m Solar Telescope (SST) to investigate the occurrence of fan-shaped jets at the solar limb. We show evidence for near-simul…
IRIS Burst Spectra Co-Spatial To A Quiet-Sun Ellerman-Like Brightening
C. J. Nelson, N. Freij, A. Reid +3
Ellerman bombs (EBs) have been widely studied over the past two decades; however, only recently have counterparts of these events been observed in the quiet-Sun. The aim of this ar…
Chromospheric Inversions of a Micro-flaring Region
A. Reid, V. Henriques, M. Mathioudakis +2
We use spectropolarimetric observations of the Ca II 8542~Å line, taken from the Swedish 1-m Solar Telescope (SST), in an attempt to recover dynamic activity in a micro-flaring reg…
Signatures of quiet Sun reconnection events in Ca~{\sc ii}, H and Fe~{\sc i}
J. Shetye, S. Shelyag, A. L. Reid +3
We use observations of quiet Sun (QS) regions in the H 6563 Å, Ca~{\sc ii} 8542 Å\, and Fe~{\sc i} 6302 Å lines. We observe brightenings in the wings of the H and Ca~{\sc ii}…
Solar Ellerman Bombs in 1-D Radiative Hydrodynamics
A. Reid, M. Mathioudakis, A. Kowalski +2
Recent observations from the Interface Region Imaging Spectrograph (IRIS) appear to show impulsive brightenings in high temperature lines, which when combined with simultaneous gro…
Magnetic Flux Cancellation in Ellerman Bombs
A. Reid, M. Mathioudakis, J. G. Doyle +4
Ellerman Bombs (EBs) are often found co-spatial with bipolar photospheric magnetic fields. We use H imaging spectroscopy along with Fe I 6302.5 Å spectro-polarimetry from the Sw…
Ellerman Bombs with Jets: Cause and Effect
A. Reid, M. Mathioudakis, E. Scullion +3
Ellerman Bombs (EBs) are thought to arise as a result of photospheric magnetic reconnection. We use data from the Swedish 1-m Solar Telescope (SST), to study EB events on the solar…
Alfvén waves in simulations of solar photospheric vortices
S. Shelyag, P. S. Cally, A. Reid +1
Using advanced numerical magneto-hydrodynamic simulations of the magnetised solar photosphere, including non-grey radiative transport and a non-ideal equation of state, we analyse…