Search Results - "Strugarek, A"

ASSESSING MAGNETIC TORQUES AND ENERGY FLUXES IN CLOSE-IN STAR-PLANET SYSTEMS by Strugarek, A.

“…ABSTRACT Planets in close-in orbit interact with the magnetized wind of their hosting star. This magnetic interaction was proposed to be a source for enhanced…”
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On the Sensitivity of Magnetic Cycles in Global Simulations of Solar-like Stars by Strugarek, A., Beaudoin, P., Charbonneau, P., Brun, A. S.

“…The periods of magnetic activity cycles in the Sun and solar-type stars do not exhibit a simple or even single trend with respect to rotation rate or…”
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ON THE DIVERSITY OF MAGNETIC INTERACTIONS IN CLOSE-IN STAR-PLANET SYSTEMS by STRUGAREK, A, Brun, A S, Matt, S P, Reville, V

“…Magnetic interactions between close-in planets and their host star can play an important role in the secular orbital evolution of the planets, as well as the…”
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Reconciling solar and stellar magnetic cycles with nonlinear dynamo simulations by Strugarek, A., Beaudoin, P., Charbonneau, P., Brun, A. S., do Nascimento, J.-D.

“…The magnetic fields of solar-type stars are observed to cycle over decadal periods—11 years in the case of the Sun. The fields originate in the turbulent…”
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Implicit Large-eddy Simulations of Global Solar Convection: Effects of Numerical Resolution in Nonrotating and Rotating Cases by Guerrero, G., Stejko, A. M., Kosovichev, A. G., Smolarkiewicz, P. K., Strugarek, A.

“…Abstract Simulating deep solar convection and its coupled mean-field motions is a formidable challenge where few observational results constrain models that…”
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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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Exploring the Impact of the Aging Effect on Inferred Properties of Solar Coronal Mass Ejections by Regnault, F., Al-Haddad, N., Lugaz, N., Farrugia, C. J., Zhuang, B., Yu, W., Strugarek, A.

“…Abstract In situ measurements of coronal mass ejections (CMEs) when they pass over an interplanetary probe are one of the main ways we directly measure their…”
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Chasing Star-Planet Magnetic Interactions: The Case of Kepler-78 by Strugarek, A., Brun, A. S., Donati, J.-F., Moutou, C., Réville, V.

“…Observational evidence of star-planet magnetic interactions (SPMIs) in compact exosystems have been looked for in the past decades. Indeed, planets in close-in…”
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Characterizing the feedback of magnetic field on the differential rotation of solar-like stars by Varela, J., Strugarek, A., Brun, A.S.

“…The aim of this article is to study how the differential rotation of solar-like stars is influenced by rotation rate and mass in presence of magnetic fields…”
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Recent Advances on Solar Global Magnetism and Variability by Brun, A. S., Browning, M. K., Dikpati, M., Hotta, H., Strugarek, A.

“…We discuss recent observational, theoretical and numerical progress made in understanding the solar global magnetism and its short and long term variability…”
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On Earth’s habitability over the Sun’s main-sequence history: joint influence of space weather and Earth’s magnetic field evolution by Varela, J, Brun, A S, Strugarek, A, Réville, V, Zarka, P, Pantellini, F

“…ABSTRACT The aim of this study is to analyse the Earth habitability with respect to the direct exposition of the Earth atmosphere to the solar wind (SW) along…”
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Predictive Capabilities of Avalanche Models for Solar Flares by Strugarek, A., Charbonneau, P.

“…We assess the predictive capabilities of various classes of avalanche models for solar flares. We demonstrate that avalanche models cannot generally be used to…”
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A Hale-like Cycle in the Solar Twin 18 Scorpii by do Nascimento, J.-D., Barnes, S. A., Saar, S. H., de Mello, G. F. Porto, Hall, J. C., Anthony, F., de Almeida, L., Velloso, E. N., da Costa, J. S., Petit, P., Strugarek, A., Wargelin, B. J., Castro, M., Strassmeier, K. G., Brun, A. S.

“…Abstract Characterizing the cyclic magnetic activity of stars that are close approximations of our Sun offers our best hope for understanding our Sun’s current…”
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MOVES – V. Modelling star–planet magnetic interactions of HD 189733 by Strugarek, A, Fares, R, Bourrier, V, Brun, A S, Réville, V, Amari, T, Helling, Ch, Jardine, M, Llama, J, Moutou, C, Vidotto, A A, Wheatley, P J, Zarka, P

“…ABSTRACT Magnetic interactions between stars and close-in planets may lead to a detectable signal on the stellar disc. HD 189733 is one of the key exosystems…”
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Impact of energetic-particle-driven geodesic acoustic modes on turbulence by Zarzoso, D, Sarazin, Y, Garbet, X, Dumont, R, Strugarek, A, Abiteboul, J, Cartier-Michaud, T, Dif-Pradalier, G, Ghendrih, Ph, Grandgirard, V, Latu, G, Passeron, C, Thomine, O

“…The impact on turbulent transport of geodesic acoustic modes excited by energetic particles is evidenced for the first time in flux-driven 5D gyrokinetic…”
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Modeling turbulent stellar convection zones: Sub-grid scales effects by Strugarek, A., Beaudoin, P., Brun, A.S., Charbonneau, P., Mathis, S., Smolarkiewicz, P.K.

“…The impressive development of global numerical simulations of turbulent stellar interiors unveiled a variety of possible differential rotation (solar or…”
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MAGNETIC ENERGY CASCADE IN SPHERICAL GEOMETRY. I. THE STELLAR CONVECTIVE DYNAMO CASE by STRUGAREK, A, Brun, A S, Mathis, S, Sarazin, Y

“…We present a method to characterize the spectral transfers of magnetic energy between scales in simulations of stellar convective dynamos. The full triadic…”
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Unraveling quasiperiodic relaxations of transport barriers with gyrokinetic simulations of tokamak plasmas by Strugarek, A, Sarazin, Y, Zarzoso, D, Abiteboul, J, Brun, A S, Cartier-Michaud, T, Dif-Pradalier, G, Garbet, X, Ghendrih, Ph, Grandgirard, V, Latu, G, Passeron, C, Thomine, O

“…The generation and dynamics of transport barriers governed by sheared poloidal flows are analyzed in flux-driven 5D gyrokinetic simulations of ion temperature…”
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On the validity of the local diffusive paradigm in turbulent plasma transport by Dif-Pradalier, G, Diamond, P H, Grandgirard, V, Sarazin, Y, Abiteboul, J, Garbet, X, Ghendrih, Ph, Strugarek, A, Ku, S, Chang, C S

“…A systematic, constructive and self-consistent procedure to quantify nonlocal, nondiffusive action at a distance in plasma turbulence is exposed and applied to…”
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Magnetic confinement of the solar tachocline: The oblique dipole by Strugarek, A., Brun, A. S., Zahn, J.-P.

“…3D MHD global solar simulations coupling the turbulent convective zone and the radiative zone have been carried out. Essential features of the Sun such as…”
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