228 citations · 3.6k across the 86 of their papers we have counts for
70 papers · 1 filter
The science behind SURROUND: a constellation of CubeSats around the Sun
D. M. Weigt, L. A. Cañizares, S. A. Maloney +6
One of the greatest challenge facing current space weather monitoring operations is forecasting the arrival of coronal mass ejections (CMEs) and Solar Energetic Particles (SEPs) wi…
Improved Type III solar radio burst detection using congruent deep learning models
Jeremiah Scully, Ronan Flynn, Peter Gallagher +2
Solar flares are energetic events in the solar atmosphere that are often linked with solar radio bursts (SRBs). SRBs are observed at metric to decametric wavelengths and are classi…
Imaging-spectroscopy of a band-split type II solar radio burst with the Murchison Widefield Array
Shilpi Bhunia, Eoin P. Carley, Divya Oberoi +1
Type II solar radio bursts are caused by magnetohydrodynamics (MHD) shocks driven by solar eruptive events such as Coronal Mass Ejections (CMEs). Often both fundamental and harmoni…
Searching for stellar flares from low mass stars using ASKAP and TESS
Jeremy Rigney, Gavin Ramsay, Eoin P. Carley +7
Solar radio emission at low frequencies (<1 GHz) can provide valuable information on processes driving flares and coronal mass ejections (CMEs). Radio emission has been detected fr…
Tracking a beam of electrons from the low solar corona into interplanetary space with the Low Frequency Array, Parker Solar Probe and 1 au spacecraft
Samuel T. Badman, Eoin P. Carley, Luis Alberto Cañizares +7
Type III radio bursts are the result of plasma emission from mildly relativistic electron beams propagating from the low solar corona into the heliosphere where they can eventually…
Solar Flare Effects on the Earth's Lower Ionosphere
Laura A. Hayes, Oscar S. D. O'Hara, Sophie A. Murray +1
Solar flares significantly impact the conditions of the Earth's ionosphere. In particular, the sudden increase in X-ray flux during a flare penetrates down to the lowest-lying D-re…
STIX X-ray microflare observations during the Solar Orbiter commissioning phase
Andrea Francesco Battaglia, Jonas Saqri, Paolo Massa +34
The Spectrometer/Telescope for Imaging X-rays (STIX) is the HXR instrument onboard Solar Orbiter designed to observe solar flares over a broad range of flare sizes, between 4-150 k…
Type III solar radio burst detection and classification: A deep learning approach
Jeremiah Scully, Ronan Flynn, Eoin Carley +2
Solar Radio Bursts (SRBs) are generally observed in dynamic spectra and have five major spectral classes, labelled Type I to Type V depending on their shape and extent in frequency…
The Flare Likelihood and Region Eruption Forecasting (FLARECAST) Project: Flare forecasting in the big data & machine learning era
M. K. Georgoulis, D. S. Bloomfield, M. Piana +25
The EU funded the FLARECAST project, that ran from Jan 2015 until Feb 2018. FLARECAST had a R2O focus, and introduced several innovations into the discipline of solar flare forecas…
Quasi-Periodic Particle Acceleration in a Solar Flare
Brendan P. Clarke, Laura A. Hayes, Peter T. Gallagher +2
A common feature of electromagnetic emission from solar flares is the presence of intensity pulsations that vary as a function of time. Known as quasi-periodic pulsations (QPPs), t…
LOFAR observations of a jet-driven piston shock in the low solar corona
Ciara A. Maguire, Eoin P. Carley, Pietro Zucca +2
The Sun produces highly dynamic and eruptive events that can drive shocks through the corona. These shocks can accelerate electrons, which result in plasma emission in the form of…
LOFAR observations of radio burst source sizes and scattering in the solar corona
Pearse C. Murphy, Eoin P. Carley, Aoife Maria Ryan +2
Low frequency radio wave scattering and refraction can have a dramatic effect on the observed size and position of radio sources in the solar corona. The scattering and refraction…
Statistical Study of GOES X-ray Quasi-Periodic Pulsations in Solar Flares
Laura A. Hayes, Andrew R. Inglis, Steven Christe +2
Small amplitude quasi-periodic pulsations (QPPs) detected in soft X-ray emission are commonplace in many flares. To date, the underpinning processes resulting in the QPPs are unkno…
A Comparison of Flare Forecasting Methods. IV. Evaluating Consecutive-Day Forecasting Patterns
Sung-Hong Park, K. D. Leka, Kanya Kusano +21
A crucial challenge to successful flare prediction is forecasting periods that transition between "flare-quiet" and "flare-active". Building on earlier studies in this series (Barn…
Evolution of the Alfvén Mach number associated with a coronal mass ejection shock
Ciara A. Maguire, Eoin P. Carley, Joseph McCauley +1
The Sun regularly produces large-scale eruptive events, such as coronal mass ejections (CMEs) that can drive shock waves through the solar corona. Such shocks can result in electro…
Multiple Regions of Shock-accelerated Particles during a Solar Coronal Mass Ejection
Diana E. Morosan, Eoin P. Carley, Laura A. Hayes +8
The Sun is an active star that can launch large eruptions of magnetised plasma into the heliosphere, called coronal mass ejections (CMEs). These ejections can drive shocks that acc…
A Comparison of Flare Forecasting Methods. III. Systematic Behaviors of Operational Solar Flare Forecasting Systems
K. D. Leka, Sung-Hong Park, Kanya Kusano +21
A workshop was recently held at Nagoya University (31 October - 02 November 2017), sponsored by the Center for International Collaborative Research, at the Institute for Space-Eart…
A Comparison of Flare Forecasting Methods. II. Benchmarks, Metrics and Performance Results for Operational Solar Flare Forecasting Systems
K. D. Leka, Sung-Hong Park, Kanya Kusano +21
Solar flares are extremely energetic phenomena in our Solar System. Their impulsive, often drastic radiative increases, in particular at short wavelengths, bring immediate impacts…
Persistent Quasi-Periodic Pulsations During a Large X-Class Solar Flare
Laura A. Hayes, Peter T. Gallagher, Brian R. Dennis +3
Solar flares often display pulsating and oscillatory signatures in the emission, known as quasi-periodic pulsations (QPP). QPP are typically identified during the impulsive phase o…
Properties and magnetic origins of solar S-bursts
Brendan P. Clarke, Diana E. Morosan, Peter T. Gallagher +3
Context. Solar activity is often accompanied by solar radio emission, consisting of numerous types of solar radio bursts. At low frequencies (<100 MHz) radio bursts with short dura…
Expansion of High Speed Solar Wind Streams from Coronal Holes through the Inner Heliosphere
Tadhg M. Garton, Sophie A. Murray, Peter T. Gallagher
Coronal holes (CHs) are regions of open magnetic flux which are the source of high speed solar wind (HSSW) streams. To date, it is not clear which aspects of CHs are of most influe…
Photospheric Shear Flows in Solar Active Regions and Their Relation to Flare Occurrence
Sung-Hong Park, Jordan A. Guerra, Peter T. Gallagher +2
Solar active regions (ARs) that produce major flares typically exhibit strong plasma shear flows around photospheric magnetic polarity inversion lines (MPILs). It is therefore impo…
Three-dimensional magnetic reconnection in a collapsing coronal loop system
Aidan M. O'Flannagain, Shane A. Maloney, Peter T. Gallagher +2
Magnetic reconnection is believed to be the primary mechanism by which non-potential energy stored in coronal magnetic fields is rapidly released during solar eruptive events. Unfo…
CMEs in the Heliosphere: I. A Statistical Analysis of the Observational Properties of CMEs Detected in the Heliosphere from 2007 to 2017 by STEREO/HI-1
R. A. Harrison, J. A. Davies, D. Barnes +10
We present a statistical analysis of coronal mass ejections (CMEs) imaged by the Heliospheric Imager (HI) instruments aboard NASAs twin-spacecraft STEREO mission between April 2007…