145 citations · 776 across the 21 of their papers we have counts for
22 papers
Data-inspired simulation of AR 11158
Matthias Rempel, Georgios Chintzoglou
We present a data-inspired simulation of NOAA active region AR 11158. We simulate the formation of a collisional polarity inversion line (cPIL) by moving sunspots in a quadrupolar…
Magnetic Decay Index Profile and Coronal Mass Ejection Speed
Bernhard Kliem, Georgios Chintzoglou, Tibor Török +1
We study the relationship between the speed of coronal mass ejections (CMEs) and the height profile of the ambient magnetic field, quantified by its decay index, n(h). Our sample i…
Comprehensive radiative MHD simulations of eruptive flares above collisional polarity inversion lines
Matthias Rempel, Georgios Chintzoglou, Mark C. M. Cheung +2
We present a new simulation setup using the MURaM radiative Magnetohydrodynamic (MHD) code that allows to study the formation of collisional polarity inversion lines (cPILs) in the…
Data-Driven Radiative Magnetohydrodynamics Simulations with the MURaM code
Feng Chen, Mark C. M. Cheung, Matthias Rempel +1
We present a method of conducting data-driven simulations of solar active regions and flux emergence with the MURaM radiative magnetohydrodynamics (MHD) code. The horizontal electr…
Towards data-driven modeling and real-time prediction of solar flares and coronal mass ejections
M. Rempel, Y. Fan, M. Dikpati +7
Modeling of transient events in the solar atmosphere requires the confluence of 3 critical elements: (1) model sophistication, (2) data availability, and (3) data assimilation. Thi…
Probing the Physics of the Solar Atmosphere with the Multi-slit Solar Explorer (MUSE): II. Flares and Eruptions
Mark C. M. Cheung, Juan Martínez-Sykora, Paola Testa +25
Current state-of-the-art spectrographs cannot resolve the fundamental spatial (sub-arcseconds) and temporal scales (less than a few tens of seconds) of the coronal dynamics of sola…
Probing the physics of the solar atmosphere with the Multi-slit Solar Explorer (MUSE): I. Coronal Heating
Bart De Pontieu, Paola Testa, Juan Martinez-Sykora +24
The Multi-slit Solar Explorer (MUSE) is a proposed NASA MIDEX mission, currently in Phase A, composed of a multi-slit EUV spectrograph (in three narrow spectral bands centered arou…
ALMA and IRIS Observations of the Solar Chromosphere II: Structure and Dynamics of Chromospheric Plage
Georgios Chintzoglou, Bart De Pontieu, Juan Martínez-Sykora +7
We propose and employ a novel empirical method for determining chromospheric plage regions, which seems to better isolate plage from its surrounding regions compared to other metho…
Decoding the Pre-Eruptive Magnetic Field Configurations of Coronal Mass Ejections
S. Patsourakos, A. Vourlidas, T. Török +15
A clear understanding of the nature of the pre-eruptive magnetic field configurations of Coronal Mass Ejections (CMEs) is required for understanding and eventually predicting solar…
High-resolution observations of the solar photosphere, chromosphere and transition region. A database of coordinated IRIS and SST observations
L. H. M. Rouppe van der Voort, B. De Pontieu, M. Carlsson +30
NASA's Interface Region Imaging Spectrograph (IRIS) provides high resolution observations of the solar atmosphere through UV spectroscopy and imaging. Since the launch of IRIS in J…
ALMA and IRIS Observations of the Solar Chromosphere I: an On-Disk Type II Spicule
Georgios Chintzoglou, Bart De Pontieu, Juan Martínez-Sykora +7
We present observations of the solar chromosphere obtained simultaneously with the Atacama Large Millimeter/submillimeter Array (ALMA) and the Interface Region Imaging Spectrograph…
The Formation Height of Millimeter-wavelength Emission in the Solar Chromosphere
Juan Martinez-Sykora, Bart De Pontieu, Jaime de la Cruz Rodriguez +1
In the past few years, the ALMA radio telescope has become available for solar observations. ALMA diagnostics of the solar atmosphere are of high interest because of the theoretica…
The multi-thermal chromosphere: inversions of ALMA and IRIS data
J. M. da Silva Santos, J. de la Cruz Rodríguez, J. Leenaarts +4
Numerical simulations of the solar chromosphere predict a diverse thermal structure with both hot and cool regions. Observations of plage regions in particular feature broader and…
The Origin of Major Solar Activity - Collisional Shearing Between Nonconjugated Polarities of Multiple Bipoles Emerging Within Active Regions
Georgios Chintzoglou, Jie Zhang, Mark C. M. Cheung +1
Active Regions (ARs) that exhibit compact Polarity Inversion Lines (PILs) are known to be very flare-productive. However, the physical mechanisms behind this statistical inference…
A Study of a Compound Solar Eruption with Two Consecutive Erupting Magnetic Structures
Suman K. Dhakal, Georgios Chintzoglou, Jie Zhang
We report a study of a compound solar eruption that was associated with two consecutively erupting magnetic structures and correspondingly two distinct peaks, during impulsive phas…
Bridging the Gap: Capturing the Ly Counterpart of a Type-II Spicule and its Heating Evolution with VAULT2.0 and IRIS Observations
Georgios Chintzoglou, Bart De Pontieu, Juan Martínez-Sykora +3
We present results from an observing campaign in support of the VAULT2.0 sounding rocket launch on September 30, 2014. VAULT2.0 is a Ly (1216 Å) spectroheliograph capable of pro…
What causes the high apparent speeds in chromospheric and transition region spicules on the Sun?
Bart De Pontieu, Juan Martinez-Sykora, Georgios Chintzoglou
Spicules are the most ubuiquitous type of jets in the solar atmosphere. The advent of high-resolution imaging and spectroscopy from the Interface Region Imaging Spectrograph (IRIS)…
Magnetic Flux Rope Shredding by a Hyperbolic Flux Tube: The Detrimental Effects of Magnetic Topology on Solar Eruptions
Georgios Chintzoglou, Angelos Vourlidas, Antonia Savcheva +3
We present the analysis of an unusual failed eruption captured in high cadence and in many wavelengths during the observing campaign in support of the VAULT2.0 sounding rocket laun…
A First Comparison of Millimeter Continuum and Mg II Ultraviolet Line Emission from the Solar Chromosphere
T. S. Bastian, G. Chintzoglou, B. De Pontieu +4
We present joint observations of the Sun by the Atacama Large Millimeter/submillimeter Array (ALMA) and the Interface Region Imaging Spectrograph (IRIS). The observations were made…
An observationally-driven kinetic approach to coronal heating
K. Moraitis, A. Toutountzi, H. Isliker +3
Coronal heating through the explosive release of magnetic energy remains an open problem in solar physics. Recent hydrodynamical models attempt an investigation by placing swarms o…
Formation of Magnetic Flux Ropes during Confined Flaring Well Before the Onset of a Pair of Major Coronal Mass Ejections
Georgios Chintzoglou, Spiros Patsourakos, Angelos Vourlidas
NOAA Active Region (AR) 11429 was the source of twin super-fast Coronal Mass Ejections (CMEs). The CMEs took place within a hour from each other, with the onset of the first taking…
Triggering an eruptive flare by emerging flux in a solar active-region complex
Rohan E. Louis, Bernhard Kliem, B. Ravindra +1
A flare and fast coronal mass ejection originated between solar active regions NOAA 11514 and 11515 on July 1, 2012 in response to flux emergence in front of the leading sunspot of…