Publications (85)
Discovery of Spatial Periodicities in a Coronal Loop using Automated Edge-Tracking Algorithms
D. B. Jess, M. Mathioudakis, R. Erdelyi +3
A new method for automated coronal loop tracking, in both spatial and temporal domains, is presented. Applying this technique to TRACE data, obtained using the 171 Angstrom filter…
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…
Stable Umbral Chromospheric Structures
V. M. J. Henriques, E. Scullion, M. Mathioudakis +3
Aims. To understand the morphology of the chromosphere in sunspot umbra. We investigate if the horizontal structures observed in the spectral core of the Ca II H line are ephemeral…
Stellar Surface Magneto-Convection as a Source of Astrophysical Noise. I. Multi-component Parameterisation of Absorption Line Profiles
H. M. Cegla, S. Shelyag, C. A. Watson +1
We outline our techniques to characterise photospheric granulation as an astrophysical noise source. A four component parameterisation of granulation is developed that can be used…
6^Li in the atmosphere of GJ 117
D. J. Christian, M. Mathioudakis, D. Jevremovic +2
We present high resolution VLT UVES observations of the active K dwarf GJ 117. 6^Li enhancement has been shown for energetic solar events, one chromospherically active binary, and…
Solar coronal observations at high frequencies
A. C. Katsiyannis, M. Mathioudakis, K. J. H. Phillips +2
The Solar Eclipse Coronal Imaging System (SECIS) is a simple and extremely fast, high-resolution imaging instrument designed for studies of the solar corona. Light from the corona…
Evolution Of Super-Sonic Downflows In A Sunspot
C. J. Nelson, S. Krishna Prasad, M. Mathioudakis
Super-sonic downflows have been observed in transition region spectra above numerous sunspots; however, little research has been conducted to date into how persistent these signatu…
Observations of ubiquitous compressive waves in the Sun's chromosphere
R. J. Morton, G. Verth, D. B. Jess +4
The details of the mechanism(s) responsible for the observed heating and dynamics of the solar atmosphere still remain a mystery. Magnetohydrodynamic (MHD) waves are thought to pla…
The formation of small-scale umbral brightenings in sunspot atmospheres
C. J. Nelson, V. M. J. Henriques, M. Mathioudakis +1
Sunspot atmospheres are highly inhomogeneous hosting both quasi-stable and transient features, such as `umbral micro-jets' and dark fibril-like events. We seek to understand the mo…
Nanoflare Activity in the Solar Chromosphere
D. B. Jess, M. Mathioudakis, P. H. Keys
We use ground-based images of high spatial and temporal resolution to search for evidence of nanoflare activity in the solar chromosphere. Through close examination of more than 10…
Vortices in the solar photosphere
S. Shelyag, V. Fedun, R. Erdélyi +2
Using numerical simulations of the magnetised solar photosphere and radiative diagnostics of the simulated photospheric models, we further analyse the physical nature of magnetic p…
The Effect Of Cooling On Driven Kink Oscillations Of Coronal Loops
C. J. Nelson, A. A. Shukhobodskiy, R. Erdélyi +1
Ever since their detection two decades ago, standing kink oscillations in coronal loops have been extensively studied both observationally and theoretically. Almost all driven coro…
A failed filament eruption inside a coronal mass ejection in active region 11121
D. Kuridze, M. Mathioudakis, A. F Kowalski +4
We study the formation and evolution of a failed filament eruption observed in NOAA active region 11121 near the southeast limb on November 6, 2010. We use a time series of SDO/AIA…
Implications of spicule activity on coronal loop heating and catastrophic cooling
V. N. Nived, E. Scullion, J. G. Doyle +6
We report on the properties of coronal loop foot-point heating with observations at the highest resolution, from the CRisp Imaging Spectro-Polarimeter (CRISP) located at the Swedis…
Statistical Signatures of Nanoflare Activity. III. Evidence of Enhanced Nanoflaring Rates in Fully Convective stars as Observed by the NGTS
S. D. T. Grant, D. B. Jess, C. J. Dillon +11
Previous examinations of fully-convective M-dwarf stars have highlighted enhanced rates of nanoflare activity on these distant stellar sources. However, the specific role the conve…
Velocity Response of the Observed Explosive Events in the Lower Solar Atmosphere: I. Formation of the Flowing Cool Loop System
A. K. Srivastava, Yamini K. Rao, P. Konkol +6
We observe plasma flows in cool loops using the Slit-Jaw Imager (SJI) onboard the Interface Region Imaging Spectrometer (IRIS). Huang et al. (2015) observed unusually broadened Si…
RHESSI and SOHO/CDS Observations of Explosive Chromospheric Evaporation
R. O. Milligan, P. T. Gallagher, M. Mathioudakis +3
Simultaneous observations of explosive chromospheric evaporation are presented using data from the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) and the Coronal Dia…
Pre-emergence Signatures Of Horizontal Divergent Flows In Solar Active Regions
T. Rees-Crockford, C. J. Nelson, M. Mathioudakis
Solar active regions (ARs) play a fundamental role in driving many of the geo-effective eruptions which propagate into the Solar System. However, we are still unable to consistentl…
Continuum emission enhancements and penumbral changes observed during flares by IRIS, ROSA, and Hinode
F. Zuccarello, S. L. Guglielmino, V. Capparelli +6
In this paper we describe observations acquired by satellite instruments (Hinode/SOT and IRIS) and ground-based telescopes (ROSA@DST) during two consecutive C7.0 and X1.6 flares oc…
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…
Spectroscopic inversions of the Ca ii 8542 Ã line in a C-class solar flare
D. Kuridze, V. Henriques, M. Mathioudakis +5
We study the C8.4 class solar flare SOL2016-05-14T11:34 UT using high-resolution spectral imaging in the Ca ii 8542 Ã line obtained with the CRISP imaging spectropolarimeter on the…
An assessment of Fe XX - Fe XXII emission lines in SDO/EVE data as diagnostics for high density solar flare plasmas using EUVE stellar observations
F. P. Keenan, R. O. Milligan, M. Mathioudakis +1
The Extreme Ultraviolet Variability Experiment (EVE) on the Solar Dynamics Observatory obtains extreme-ultraviolet (EUV) spectra of the full-disk Sun at a spectral resolution of ~1…
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…
Tracking Magnetic Bright Point Motions Through the Solar Atmosphere
P. H. Keys, M. Mathioudakis, D. B. Jess +3
High cadence, multi-wavelength observations and simulations are employed for the analysis of solar photospheric magnetic bright points (MBPs) in the quiet Sun. The observations wer…
A photospheric bright point model
S. Shelyag, M. Mathioudakis, F. P. Keenan +1
A magneto-hydrostatic model is constructed with spectropolarimetric properties close to those of solar photospheric magnetic bright points. Results of solar radiative magneto-conve…
Flare X-ray observations of AB Dor: evidence for Stellar Coronal Opacity
M. Matranga, M. Mathioudakis, H. R. M. Kay +1
X-ray spectra of the late-type star AB Dor, obtained with the XMM-Newton satellite are analysed. AB Dor was particularly active during the observations. An emission measure reconst…
Ellerman Bombs - Evidence for Magnetic Reconnection in the Lower Solar Atmosphere
C. J. Nelson, S. Shelyag, M. Mathioudakis +4
The presence of photospheric magnetic reconnection has long been thought to give rise to short and impulsive events, such as Ellerman bombs (EBs) and Type II spicules. In this arti…
A search for line intensity enhancements in the far-UV spectra of active late-type stars arising from opacity
F. P. Keenan, D. J. Christian, S. J. Rose +1
Radiative transfer calculations have predicted intensity enhancements for optically thick emission lines, as opposed to the normal intensity reductions, for astrophysical plasmas u…
Plasma Diagnostics of Active Region Evolution and Implications for Coronal Heating
R. O. Milligan, P. T. Gallagher, M. Mathioudakis +2
A detailed study is presented of the decaying solar active region NOAA 10103 observed with the Coronal Diagnostic Spectrometer (CDS), the Michelson Doppler Imager (MDI) and the Ext…
Characteristics of transverse waves in chromospheric mottles
D. Kuridze, G. Verth, M. Mathioudakis +5
Using data obtained by the high temporal and spatial resolution Rapid Oscillations in the Solar Atmosphere (ROSA) instrument on the Dunn Solar Telescope, we investigate at an unpre…
Propagation of Waves above a Plage as Observed by IRIS and SDO
P. Kayshap, A. K. Srivastava, S. K. Tiwari +2
Context. MHD waves are proposed to transport sufficient energy from the photosphere to heat the transition-region (TR) and corona. However, various aspects of these waves such as t…
Mechanisms for MHD Poynting flux generation in simulations of solar photospheric magneto-convection
S. Shelyag, M. Mathioudakis, F. P. Keenan
We investigate the generation mechanisms of MHD Poynting flux in the magnetised solar photosphere. Using radiative MHD modelling of the solar photosphere with initial magnetic conf…
X-ray line coincidence photopumping in a solar flare
F. P. Keenan, K. Poppenhaeger, M. Mathioudakis +6
Line coincidence photopumping is a process where the electrons of an atomic or molecular species are radiatively excited through the absorption of line emission from another specie…
The Source of Three-minute Magneto-acoustic Oscillations in Coronal Fans
D. B. Jess, I. De Moortel, M. Mathioudakis +4
We use images of high spatial, spectral and temporal resolution, obtained using both ground- and space-based instrumentation, to investigate the coupling between wave phenomena obs…
Automated Detection and Tracking of Solar Magnetic Bright Points
P. J. Crockett, D. B. Jess, M. Mathioudakis +1
Magnetic Bright Points (MBPs) in the internetwork are among the smallest objects in the solar photosphere and appear bright against the ambient environment. An algorithm is present…
Line intensity enhancements in stellar coronal X-ray spectra due to opacity effects
S. J. Rose, M. Matranga, M. Mathioudakis +2
Context. The I(15.01 A)/I(16.78 A) emission line intensity ratio in Fe XVII has been reported to deviate from its theoretical value in solar and stellar X-ray spectra. This is attr…
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…
Do all Flares have White Light Emission?
D. B. Jess, M. Mathioudakis, P. J. Crockett +1
High-cadence, multiwavelength optical observations of a solar active region (NOAA 10969), obtained with the Swedish Solar Telescope, are presented. Difference imaging of white ligh…
Microflare Activity driven by Forced Magnetic Reconnection
D. B. Jess, M. Mathioudakis, P. K. Browning +2
High cadence, multiwavelength, optical observations of a solar active region are presented, obtained with the Swedish Solar Telescope. Two magnetic bright points are seen to separa…
Propagating Wave Phenomena Detected in Observations and Simulations of the Lower Solar Atmosphere
D. B. Jess, S. Shelyag, M. Mathioudakis +3
We present high-cadence observations and simulations of the solar photosphere, obtained using the Rapid Oscillations in the Solar Atmosphere imaging system and the MuRAM magneto-hy…
Transition-Region Velocity Oscillations Observed by EUNIS-06
D. B. Jess, D. M. Rabin, R. J. Thomas +3
Spectroscopic measurements of AR NOAA 10871, obtained with the Extreme Ultraviolet Normal Incidence Spectrograph (EUNIS) sounding rocket instrument on 2006 April 12, reveal velocit…
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…
Stellar jitter from variable gravitational redshift: implications for RV confirmation of habitable exoplanets
H. M. Cegla, C. A. Watson, T. R. Marsh +6
A variation of gravitational redshift, arising from stellar radius fluctuations, will introduce astrophysical noise into radial velocity measurements by shifting the centroid of th…
Twisting Flux Tubes as a cause of Micro-Flaring Activity
D. B. Jess, R. T. J. McAteer, M. Mathioudakis +3
High-cadence optical observations of an H-alpha blue-wing bright point near solar AR NOAA 10794 are presented. The data were obtained with the Dunn Solar Telescope at the National…
Intensity enhancement of O VI ultraviolet emission lines in solar spectra due to opacity
F. P. Keenan, J. G. Doyle, M. S. Madjarska +5
Opacity is a property of many plasmas, and it is normally expected that if an emission line in a plasma becomes optically thick, its intensity ratio to that of another transition t…
Observations of sausage modes in magnetic pores
R. J. Morton, R. Erdélyi, D. B. Jess +1
We present here evidence for the observation of the magneto-hydrodynamic (MHD) sausage modes in magnetic pores in the solar photosphere. Further evidence for the omnipresent nature…
ROSA: a high cadence, synchronized multi-camera solar imaging system
D. B. Jess, M. Mathioudakis, D. J. Christian +3
Rapid Oscillations in the Solar Atmosphere (ROSA) is a synchronized, six camera high cadence solar imaging instrument developed by Queen's University Belfast. The system is availab…
Plasma properties and Stokes profiles during the lifetime of a photospheric magnetic bright point
R. L. Hewitt, S. Shelyag, M. Mathioudakis +1
Aims: to investigate the evolution of plasma properties and Stokes parameters in photospheric magnetic bright points using 3D magneto-hydrodynamical simulations and radiative diagn…
Spatially resolved signatures of bi-directional flows observed in inverted-Y shaped jets
C. J. Nelson, N. Freij, S. Bennett +2
Numerous apparent signatures of magnetic reconnection have been reported in the solar photosphere, including inverted-Y shaped jets. The reconnection at these sites is expected to…
Observations and simulations of the Na I D1 line profiles in an M-class solar flare
D. Kuridze, M. Mathioudakis, D. J. Christian +7
We study the temporal evolution of the Na I D1 line profiles in the M3.9 flare SOL2014-06-11T21:03 UT, using high spectral resolution observations obtained with the IBIS instrument…
A study of Magnetic Bright Points in the Na I D1 line
D. B. Jess, M. Mathioudakis, D. J. Christian +2
High cadence, multiwavelength, optical observations of solar magnetic bright points, captured at disk center using the ROSA and IBIS imaging systems on the Dunn Solar Telescope, ar…
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…
Insight into the solar plage chromosphere with DKIST
D. Kuridze, H. Uitenbroek, F. Wöger +11
The strongly coupled hydrodynamic, magnetic, and radiation properties of the plasma in the solar chromosphere makes it a region of the Sun's atmosphere that is poorly understood. W…
Oscillations In The Line-of-Sight Magnetic Field Strength In A Pore Observed By The GREGOR Infrared Spectrograph (GRIS)
C. J. Nelson, R. J. Campbell, M. Mathioudakis
Numerous magnetohydrodynamic oscillations have been reported within solar pores over the past decades, including in line-of-sight (LOS) velocities, intensities, and magnetic field…
DKIST unveils the serpentine topology of quiet Sun magnetism in the photosphere
Ryan J. Campbell, P H. Keys, M. Mathioudakis +9
We present the first quiet Sun spectropolarimetric observations obtained with the Visible SpectroPolarimeter (ViSP) at the m Daniel K. Inouye Solar Telescope (DKIST). We record…
Alfven Waves in the Lower Solar Atmosphere
D. B. Jess, M. Mathioudakis, R. Erdelyi +3
We report the detection of oscillatory phenomena associated with a large bright-point group that is 430,000 square kilometers in area and located near the solar disk center. Wavele…
Emission lines of Fe XI in the 257--407 A wavelength region observed in solar spectra from EIS/Hinode and SERTS
F. P. Keenan, R. O. Milligan, D. B. Jess +5
Theoretical emission-line ratios involving Fe XI transitions in the 257-407 A wavelength range are derived using fully relativistic calculations of radiative rates and electron imp…
Kelvin-Helmholtz instability in solar chromospheric jets: theory and observation
D. Kuridze, T. V. Zaqarashvili, V. Henriques +3
Using data obtained by the high resolution CRisp Imaging SpectroPolarimeter instrument on the Swedish 1-m Solar Telescope, we investigate the dynamics and stability of quiet-Sun ch…
Understanding Astrophysical Noise from Stellar Surface Magneto-Convection
H. M. Cegla, C. A. Watson, S. Shelyag +1
To obtain cm/s precision, stellar surface magneto-convection must be disentangled from observed radial velocities (RVs). In order to understand and remove the convective signature,…
High-Frequency Oscillations in a Solar Active Region observed with the Rapid Dual Imager
D. B. Jess, A. Andic, M. Mathioudakis +2
High-cadence, synchronized, multiwavelength optical observations of a solar active region (NOAA 10794) are presented. The data were obtained with the Dunn Solar Telescope at the Na…
Chromospheric Inversions of a Micro-flaring Region
A. Reid, V. Henriques, M. Mathioudakis +2
We use spectropolarimetric observations of the Ca II 8542~Ã line, taken from the Swedish 1-m Solar Telescope (SST), in an attempt to recover dynamic activity in a micro-flaring reg…
Small-scale Hα Jets in the Solar Chromosphere
D. Kuridze, M. Mathioudakis, D. B. Jess +4
High temporal and spatial resolution observations from the Rapid Oscillations in the Solar Atmosphere (ROSA) multiwavelength imager on the Dunn Solar Telescope are used to study th…
6^Li in the atmosphere of GJ 117 Revisited
D. J. Christian, M. Mathioudakis, D. Jevremovic
Detection of 6^Li has been shown for energetic solar events, one chromospherically active binary, and several dwarf halo stars. We had previously found a 6^Li/7^Li = 0.03+/-0.01 fo…
Quiet Sun Hα Transients and Corresponding Small-Scale Transition Region and Coronal Heating
V. M. J. Henriques, D. Kuridze, M. Mathioudakis +1
Rapid Blue- and Red-shifted Excursions (RBEs and RREs) are likely to be the on-disk counterparts of Type II spicules. Recently, heating signatures from RBEs/RREs have been detected…
Stellar Surface Magneto-Convection as a Source of Astrophysical Noise II. Center-to-Limb Parameterisation of Absorption Line Profiles and Comparison to Observations
H. M. Cegla, C. A. Watson, S. Shelyag +6
Manifestations of stellar activity (such as star-spots, plage/faculae, and convective flows) are well known to induce spectroscopic signals often referred to as astrophysical noise…
Solar coronal magnetic fields derived using seismology techniques applied to omnipresent sunspot waves
D. B. Jess, V. E. Reznikova, R. S. I. Ryans +9
Sunspots on the surface of the Sun are the observational signatures of intense manifestations of tightly packed magnetic field lines, with near-vertical field strengths exceeding 6…
Rapid Fluctuations in the Lower Solar Atmosphere
J. K. Lawrence, A. C. Cadavid, D. J. Christian +2
The Rapid Oscillations in the Solar Atmosphere (ROSA) instrument reveals solar atmospheric fluctuations at high frequencies. Spectra of variations of the G-band intensity (IG) and…
The periodic variations of a white-light flare observed with ULTRACAM
M. Mathioudakis, D. S. Bloomfield, D. B. Jess +2
High time resolution observations of a white--light flare on the active star EQ PegB show evidence of intensity variations with a period of approximately 10 s. The period drifts to…
Spectral Characteristics and Formation Height of Off-Limb Flare Ribbons
D. Kuridze, M. Mathioudakis, P. Heinzel +5
Flare ribbons are bright manifestations of flare energy dissipation in the lower solar atmosphere. For the first time, we report on high-resolution imaging spectroscopy observation…
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-simu…
Halpha line profile asymmetries and the chromospheric flare velocity field
D. Kuridze, M. Mathioudakis, P. J. A. Simões +9
The asymmetries observed in the line profiles of solar flares can provide important diagnostics of the properties and dynamics of the flaring atmosphere. In this paper the evolutio…
The effects of transients on photospheric and chromospheric power distributions
T. Samanta, V. M. J. Henriques, D. Banerjee +4
We have observed a quiet Sun region with the Swedish 1-meter Solar Telescope (SST) equipped with CRISP Imaging SpectroPolarimeter. High-resolution, high-cadence, H line scannin…
Stellar Surface Magneto-Convection as a Source of Astrophysical Noise III. Sun-as-a-star Simulations and Optimal Noise Diagnostics
H. M. Cegla, C. A. Watson, S. Shelyag +2
Stellar surface magnetoconvection (granulation) creates asymmetries in the observed stellar absorption lines that can subsequently manifest themselves as spurious radial velocities…
Spectropolarimetric inversions of the Ca ii 8542 Ã line in a M-class solar flare
D. Kuridze, V. Henriques, M. Mathioudakis +3
We study the M1.9 class solar flare SOL2015-09-27T10:40 UT using high-resolution full-Stokes imaging spectropolarimetry of the Ca ii 8542 Ã line obtained with the CRISP imaging spe…
Chromospheric Heating by MHD Waves and Instabilities
A. K. Srivastava, J. L. Ballester, P. S. Cally +7
The importance of the chromosphere in the mass and energy transport within the solar atmosphere is now widely recognised. This review discusses the physics of magnetohydrodynamic (…
Opacity in the upper atmospheres of active stars II. AD Leonis
D. J. Christian, M. Mathioudakis, D. S. Bloomfield +4
We present FUV and UV spectroscopic observations of AD Leonis, with the aim of investigating opacity effects in the transition regions of late-type stars. The C III lines in FUSE s…
The Dynamics of Rapid Redshifted and Blueshifted Excursions in the Solar Halpha line
D. Kuridze, V. Henriques, M. Mathioudakis +5
We analyse high temporal and spatial resolution time-series of spectral scans of the Halpha line obtained with the CRisp Imaging SpectroPolarimeter (CRISP) instrument mounted on th…
Statistical Analysis of Small Ellerman Bomb Events
C. J. Nelson, J. G. Doyle, R. Erdelyi +5
The properties of Ellerman bombs (EBs), small-scale brightenings in the H-alpha line wings, have proved difficult to establish due to their size being close to the spatial resoluti…
Evolution Of Downflows In The Transition Region Above A Sunspot Over Short Time-Scales
C. J. Nelson, S. Krishna Prasad, M. Mathioudakis
Downflows with high velocities occur in the transition region above many sunspots; however, how these signatures evolve over short time-scales in both spatial and spectral terms is…
First Evidence of the Frequency Filtering of Magnetoacoustic Waves in the Flaring Star EK Dra
A. K. Srivastava, J. C. Pandey, Subhajeet Karmakar +7
Using the data obtained from XMM-Newton, we show the gradual evolution of two periodicities of ~4500 s and ~2200 s in the decay phase of the flare observed in a solar analog EK Dra…
The Origin of Type I Spicule Oscillations
D. B. Jess, D. J. Pascoe, D. J. Christian +3
We use images of high spatial and temporal resolution, obtained with the Rapid Oscillations in the Solar Atmosphere instrument at the Dunn Solar Telescope, to reveal how the genera…
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 Ã spectro-polarimetry from the S…
Transverse oscillations in chromospheric mottles
D. Kuridze, R. J. Morton, R. Erdélyi +4
A number of recent investigations have revealed that transverse waves are ubiquitous in the solar chromosphere. The vast majority of these have been reported in limb spicules and a…
The Area Distribution of Solar Magnetic Bright Points
P. J. Crockett, M. Mathioudakis, D. B. Jess +3
Magnetic Bright Points (MBPs) are among the smallest observable objects on the solar photosphere. A combination of G-band observations and numerical simulations is used to determin…
Vorticity in the solar photosphere
S. Shelyag, P. Keys, M. Mathioudakis +1
Aims. We use magnetic and non-magnetic 3D numerical simulations of solar granulation and G-band radiative diagnostics from the resulting models to analyse the generation of small-s…