Search Results - "Démoulin, P"

From Coronal Observations to MHD Simulations, the Building Blocks for 3D Models of Solar Flares (Invited Review) by Janvier, M., Aulanier, G., Démoulin, P.

“…Solar flares are energetic events taking place in the Sun’s atmosphere, and their effects can greatly impact the environment of the surrounding planets. In…”
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Solar filament eruptions and their physical role in triggering coronal mass ejections by Schmieder, B., Démoulin, P., Aulanier, G.

“…Solar filament eruptions play a crucial role in triggering coronal mass ejections (CMEs). More than 80% of eruptions lead to a CME. This correlation has been…”
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A comparison of Forbush Decreases driven by ICMEs and SIRs by Gutierrez, C., Dasso, S., Démoulin, P., Janvier, M.

“…Solar wind structures passing Earth can shield Earth from Galactic Cosmic Rays (GCRs), producing variations in the GCR flux that can be observed by…”
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Coexisting Flux Rope and Dipped Arcade Sections Along One Solar Filament by Guo, Y, Schmieder, B, Démoulin, P, Wiegelmann, T, Aulanier, G, Török, T, Bommier, V

“…We compute the three-dimensional magnetic field of an active region in order to study the magnetic configuration of active region filaments. The nonlinear…”
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Multispacecraft observation of magnetic cloud erosion by magnetic reconnection during propagation by Ruffenach, A., Lavraud, B., Owens, M. J., Sauvaud, J.-A., Savani, N. P., Rouillard, A. P., Démoulin, P., Foullon, C., Opitz, A., Fedorov, A., Jacquey, C. J., Génot, V., Louarn, P., Luhmann, J. G., Russell, C. T., Farrugia, C. J., Galvin, A. B.

“…During propagation, Magnetic Clouds (MC) interact with their environment and, in particular, may reconnect with the solar wind around it, eroding away part of…”
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20 Years of ACE Data: How Superposed Epoch Analyses Reveal Generic Features in Interplanetary CME Profiles by Regnault, F., Janvier, M., Démoulin, P., Auchère, F., Strugarek, A., Dasso, S., Noûs, C.

“…Interplanetary coronal mass ejections (ICMEs) are magnetic structures propagating from the Sun's corona to the interplanetary medium. With over 20 years of…”
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Criteria for Flux Rope Eruption: Non-equilibrium Versus Torus Instability by Démoulin, P, Aulanier, G

“…The coronal magnetic configuration of an active region typically evolves quietly for a few days before becoming suddenly eruptive and launching a coronal mass…”
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Nonlinear Force-free Field Modeling of a Solar Active Region around the Time of a Major Flare and Coronal Mass Ejection by Schrijver, C. J, DeRosa, M. L, Metcalf, T, Barnes, G, Lites, B, Tarbell, T, McTiernan, J, Valori, G, Wiegelmann, T, Wheatland, M. S, Amari, T, Aulanier, G, Démoulin, P, Fuhrmann, M, Kusano, K, Régnier, S, Thalmann, J. K

“…Solar flares and coronal mass ejections are associated with rapid changes in field connectivity and are powered by the partial dissipation of electrical…”
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Eruption of the EUV Hot Channel from the Solar Limb and Associated Moving Type IV Radio Burst by Vemareddy, P., Démoulin, P., Raja, K. Sasikumar, Zhang, J., Gopalswamy, N., Vasantharaju, N.

“…Abstract Using the observations from the Solar Dynamics Observatory, we study an eruption of a hot-channel flux rope (FR) near the solar limb on 2015 February…”
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Low Geo‐Effectiveness of Fast Halo CMEs Related to the 12 X‐Class Flares in 2002 by Schmieder, B., Kim, R.‐S., Grison, B., Bocchialini, K., Kwon, R.‐Y., Poedts, S., Démoulin, P.

“…It is generally accepted that extreme space weather events tend to be related to strong flares and fast halo coronal mass ejections (CMEs). In the present…”
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Searching for Evidence of Subchromospheric Magnetic Reconnection on the Sun by Baker, D., van Driel-Gesztelyi, L., James, A. W., Démoulin, P., To, A. S. H., Murabito, M., Long, D. M., Brooks, D. H., McKevitt, J., Laming, J. M., Green, L. M., Yardley, S. L., Valori, G., Mihailescu, T., Matthews, S. A., Kuniyoshi, H.

“…Abstract Within the coronae of stars, abundances of those elements with low first ionization potential (FIP) often differ from their photospheric values. The…”
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Expanding and Contracting Coronal Loops as Evidence of Vortex Flows Induced by Solar Eruptions by Dudík, J., Zuccarello, F. P., Aulanier, G., Schmieder, B., Démoulin, P.

“…Eruptive solar flares were predicted to generate large-scale vortex flows at both sides of the erupting magnetic flux rope. This process is analogous to a…”
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Observational Evidence of S-web Source of the Slow Solar Wind by Baker, D., Démoulin, P., Yardley, S. L., Mihailescu, T., van Driel-Gesztelyi, L., D’Amicis, R., Long, D. M., To, A. S. H., Owen, C. J., Horbury, T. S., Brooks, D. H., Perrone, D., French, R. J., James, A. W., Janvier, M., Matthews, S., Stangalini, M., Valori, G., Smith, P., Cuadrado, R. Aznar, Peter, H., Schuehle, U., Harra, L., Barczynski, K., Berghmans, D., Zhukov, A. N., Rodriguez, L., Verbeeck, C.

“…Abstract From 2022 March 18 to 21, NOAA Active Region (AR) 12967 was tracked simultaneously by Solar Orbiter at 0.35 au and Hinode/EIS at Earth. During this…”
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Studying the Transfer of Magnetic Helicity in Solar Active Regions with the Connectivity-based Helicity Flux Density Method by Dalmasse, K., Pariat, É., Valori, G., Jing, J., Démoulin, P.

“…In the solar corona, magnetic helicity slowly and continuously accumulates in response to plasma flows tangential to the photosphere and magnetic flux…”
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Magnetic Reconnection along Quasi-separatrix Layers as a Driver of Ubiquitous Active Region Outflows by Baker, D, van Driel-Gesztelyi, L, Mandrini, C. H, Démoulin, P, Murray, M. J

“…Hinode's EUV Imaging Spectrometer (EIS) has discovered ubiquitous outflows of a few to 50 km s-1 from active regions (ARs). These outflows are most prominent…”
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Sequential Eruptions Triggered by Flux Emergence: Observations and Modeling by Dacie, S., Török, T., Démoulin, P., Linton, M. G., Downs, C., Driel-Gesztelyi, L. van, Long, D. M., Leake, J. E.

“…We describe and analyze observations by the Solar Dynamics Observatory of the emergence of a small, bipolar active region within an area of unipolar magnetic…”
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Vortex and Sink Flows in Eruptive Flares as a Model for Coronal Implosions by Zuccarello, F. P., Aulanier, G., Dudík, J., Démoulin, P., Schmieder, B., Gilchrist, S. A.

“…Eruptive flares are sudden releases of magnetic energy that involve many phenomena, several of which can be explained by the standard 2D flare model and its…”
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Modelling and observations of photospheric magnetic helicity by Démoulin, P., Pariat, E.

“…Mounting observational evidence of the emergence of twisted magnetic flux tubes through the photosphere have now been published. Such flux tubes, formed by the…”
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A review of the quantitative links between CMEs and magnetic clouds by DEMOULIN, P

“…Magnetic clouds (MCs), and more generally, interplanetary coronal mass ejections (ICMEs), are believed to be the interplanetary counterparts of CMEs. The link…”
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Formation of Torus-Unstable Flux Ropes and Electric Currents in Erupting Sigmoids by Aulanier, G, Török, T, Démoulin, P, DeLuca, E. E

“…We analyze the physical mechanisms that form a three-dimensional coronal flux rope and later cause its eruption. This is achieved by a zero- Delta *b…”
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