Search Results - "Brun, A. S."

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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SOLAR MAGNETIC FIELD REVERSALS AND THE ROLE OF DYNAMO FAMILIES by DEROSA, M. L, BRUN, A. S, HOEKSEMA, J. T

“…The variable magnetic field of the solar photosphere exhibits periodic reversals as a result of dynamo activity occurring within the solar interior. We…”
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Anelastic convection-driven dynamo benchmarks by Jones, C.A., Boronski, P., Brun, A.S., Glatzmaier, G.A., Gastine, T., Miesch, M.S., Wicht, J.

“…► Anelastic dynamo benchmark solutions have been proposed. ► Valid for convection driven compressible dynamos in spherical geometry. ► Four different codes…”
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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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Numerical Simulations of a Rotating Red Giant Star. I. Three-dimensional Models of Turbulent Convection and Associated Mean Flows by Brun, A. S, Palacios, A

“…With the development of one-dimensional stellar evolution codes including rotation and the increasing number of observational data for stars of various…”
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Rossby and Magnetic Prandtl Number Scaling of Stellar Dynamos by Augustson, K. C., Brun, A. S., Toomre, J.

“…Rotational scaling relationships are examined for the degree of equipartition between magnetic and kinetic energies in stellar convection zones. These scaling…”
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Looking for Gravity-Mode Multiplets with the GOLF Experiment aboard SOHO by Turck-Chièze, S, García, R. A, Couvidat, S, Ulrich, R. K, Bertello, L, Varadi, F, Kosovichev, A. G, Gabriel, A. H, Berthomieu, G, Brun, A. S, Lopes, I, Pallé, P, Provost, J, Robillot, J. M, Roca Cortés, T

“…This paper is focused on the search for low-amplitude solar gravity modes between 150 and 400 mu Hz, corresponding to low-degree, low-order modes. It presents…”
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Interactions of Twisted Ω-loops in a Model Solar Convection Zone by Jouve, L., Brun, A. S., Aulanier, G.

“…Abstract This study aims at investigating the ability of strong interactions between magnetic field concentrations during their rise through the convection…”
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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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Effects of turbulent pumping on stellar activity cycles by Do Cao, O., Brun, A.S.

“…Stellar magnetic activity of solar like stars is thought tobe due to an internal dynamo. While the Sun has been the subject of intense research for refining…”
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Standard Solar Models in the Light of New Helioseismic Constraints. II. Mixing below the Convective Zone by Brun, A. S, Turck-Chièze, S, Zahn, J. P

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The Solar-Stellar Connection by Brun, A. S., García, R. A., Houdek, G., Nandy, D., Pinsonneault, M.

“…We discuss how recent advances in observations, theory and numerical simulations have allowed the stellar community to progress in its understanding of stellar…”
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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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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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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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FLUX EMERGENCE IN A MAGNETIZED CONVECTION ZONE by Pinto, R F, Brun, A S

“…We study the influence of a dynamo magnetic field on the buoyant rise and emergence of twisted magnetic flux ropes and their influence on the global external…”
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Towards a 3D dynamo model of the PMS star BP Tau by Bessolaz, N., Brun, A.S.

“…Studying how convective and magnetic properties of pre‐main sequence stars change during their evolution towards the zero‐age main sequence is a growing area…”
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Solar Neutrino Emission Deduced from a Seismic Model by Turck-Chièze, S, Couvidat, S, Kosovichev, A. G, Gabriel, A. H, Berthomieu, G, Brun, A. S, Christensen-Dalsgaard, J, García, R. A, Gough, D. O, Provost, J, Roca-Cortes, T, Roxburgh, I. W, Ulrich, R. K

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