Search Results - "Pariat, E."

Magnetic Helicity Budget of Solar Active Regions Prolific of Eruptive and Confined Flares by Thalmann, Julia K., Moraitis, K., Linan, L., Pariat, E., Valori, G., Dalmasse, K.

“…We compare the coronal magnetic energy and helicity of two solar active regions (ARs), prolific in major eruptive (AR 11158) and confined (AR 12192) flaring,…”
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ELECTRIC CURRENTS IN FLARE RIBBONS: OBSERVATIONS AND THREE-DIMENSIONAL STANDARD MODEL by Janvier, M, Aulanier, G, Bommier, V, Schmieder, B, Demoulin, P, PARIAT, E

“…We present for the first time the evolution of the photospheric electric currents during an eruptive X-class flare, accurately predicted by the standard…”
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Solar Coronal Jets: Observations, Theory, and Modeling by Raouafi, N. E., Patsourakos, S., Pariat, E., Young, P. R., Sterling, A. C., Savcheva, A., Shimojo, M., Moreno-Insertis, F., DeVore, C. R., Archontis, V., Toeroek, T., Mason, H., Curdt, W., Meyer, K., Dalmasse, K., Matsui, Y.

“…Coronal jets represent important manifestations of ubiquitous solar transients, which may be the source of significant mass and energy input to the upper solar…”
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TWIST ACCUMULATION AND TOPOLOGY STRUCTURE OF A SOLAR MAGNETIC FLUX ROPE by Guo, Y., Ding, M. D., Cheng, X., Zhao, J., Pariat, E.

“…To study the buildup of a magnetic flux rope before a major flare and coronal mass ejection (CME), we compute the magnetic helicity injection, twist…”
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Magnetic Flux Emergence Along the Solar Cycle by Schmieder, B., Archontis, V., Pariat, E.

“…Flux emergence plays an important role along the solar cycle. Magnetic flux emergence builds sunspot groups and solar activity. The sunspot groups contribute…”
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Threshold of Non-potential Magnetic Helicity Ratios at the Onset of Solar Eruptions by Zuccarello, F. P., Pariat, E., Valori, G., Linan, L.

“…The relative magnetic helicity is a quantity that is often used to describe the level of entanglement of non-isolated magnetic fields, such as the magnetic…”
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RECONNECTION-DRIVEN CORONAL-HOLE JETS WITH GRAVITY AND SOLAR WIND by Karpen, J. T., DeVore, C. R., Antiochos, S. K., Pariat, E.

“…ABSTRACT Coronal-hole jets occur ubiquitously in the Sun's coronal holes, at EUV and X-ray bright points associated with intrusions of minority magnetic…”
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The Nature of Flare Ribbons in Coronal Null-Point Topology by Masson, S, Pariat, E, Aulanier, G, Schrijver, C. J

“…Flare ribbons are commonly attributed to the low-altitude impact, along the footprints of separatrices or quasi-separatrix layers (QSLs), of particle beams…”
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THE ORIGIN OF NET ELECTRIC CURRENTS IN SOLAR ACTIVE REGIONS by Dalmasse, K., Aulanier, G., Démoulin, P., Kliem, B., Török, T., Pariat, E.

“…ABSTRACT There is a recurring question in solar physics regarding whether or not electric currents are neutralized in active regions (ARs). This question was…”
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Comparing Values of the Relative Magnetic Helicity in Finite Volumes by Valori, G., Démoulin, P., Pariat, E.

“…Relative magnetic helicity, as a conserved quantity of ideal magnetohydrodynamics, has been highlighted as an important quantity to study in plasma physics…”
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A Model for Solar Polar Jets by Pariat, E, Antiochos, S. K, DeVore, C. R

“…We propose a model for the jetting activity that is commonly observed in the Sun's corona, especially in the open-field regions of polar coronal holes…”
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THE RELATION BETWEEN SOLAR ERUPTION TOPOLOGIES AND OBSERVED FLARE FEATURES. II. DYNAMICAL EVOLUTION by Savcheva, A., Pariat, E., McKillop, S., McCauley, P., Hanson, E., Su, Y., DeLuca, E. E.

“…ABSTRACT A long-established goal of solar physics is to build understanding of solar eruptions and develop flare and coronal mass ejection (CME) forecasting…”
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Three-dimensional Modeling of Quasi-homologous Solar Jets by Pariat, E, Antiochos, S. K, DeVore, C. R

“…Recent solar observations (e.g., obtained with Hinode and STEREO) have revealed that coronal jets are a more frequent phenomenon than previously believed. This…”
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Magnetic Helicity Evolution and Eruptive Activity in NOAA Active Region 11158 by Green, L. M., Thalmann, J. K., Valori, G., Pariat, E., Linan, L., Moraitis, K.

“…Abstract Coronal mass ejections are among the Sun’s most energetic activity events yet the physical mechanisms that lead to their occurrence are not yet fully…”
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Magnetic Helicity Estimations in Models and Observations of the Solar Magnetic Field. IV. Application to Solar Observations by Thalmann, J. K., Georgoulis, M. K., Liu, Y., Pariat, E., Valori, G., Anfinogentov, S., Chen, F., Guo, Y., Moraitis, K., Yang, S., Mastrano, Alpha

“…Abstract In this ISSI-supported series of studies on magnetic helicity in the Sun, we systematically implement different magnetic helicity calculation methods…”
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CORONAL MAGNETIC RECONNECTION DRIVEN BY CME EXPANSION—THE 2011 JUNE 7 EVENT by VAN DRIEL-GESZTELYI, L, Baker, D, Torok, T, PARIAT, E, Green, L M, Williams, D R, Carlyle, J, Valori, G, Demoulin, P, Kliem, B, Long, D M, Matthews, S A, Malherbe, J-M

“…Coronal mass ejections (CMEs) erupt and expand in a magnetically structured solar corona. Various indirect observational pieces of evidence have shown that the…”
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Magnetic Helicity Estimations in Models and Observations of the Solar Magnetic Field. III. Twist Number Method by Guo, Y., Pariat, E., Valori, G., Anfinogentov, S., Chen, F., Georgoulis, M. K., Liu, Y., Moraitis, K., Thalmann, J. K., Yang, S.

“…We study the writhe, twist, and magnetic helicity of different magnetic flux ropes, based on models of the solar coronal magnetic field structure. These…”
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Photospheric Injection of Magnetic Helicity: Connectivity-Based Flux Density Method by Dalmasse, K., Pariat, E., Démoulin, P., Aulanier, G.

“…Magnetic helicity quantifies the degree to which the magnetic field in a volume is globally sheared and/or twisted. This quantity is believed to play a key…”
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Current Buildup in Emerging Serpentine Flux Tubes by Pariat, E, Masson, S, Aulanier, G

“…The increase of magnetic flux in the solar atmosphere during active-region formation involves the transport of the magnetic field from the solar convection…”
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Homologous Flares and Magnetic Field Topology in Active Region NOAA 10501 on 20 November 2003 by Chandra, R., Schmieder, B., Mandrini, C. H., Démoulin, P., Pariat, E., Török, T., Uddin, W.

“…We present and interpret observations of two morphologically homologous flares that occurred in active region (AR) NOAA 10501 on 20 November 2003. Both flares…”
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