Results 11 to 20 of about 3,389 (211)

Magnetic Fields of F-Type Stars [PDF]

, 2022
Magnetic fields are an observable feature of many stars, with warm, F-type stars of interest in searching for the transition from the fossil fields in hot stars to dynamos in cool stars driven by convection zones.
Seach, John M.
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The magnetic fields and stellar winds of the mature late F-stars: β Virginis and θ Draconis [PDF]

, 2022
International audienceMapping the large-scale magnetic field in late F-type stars is important for understanding the nature of the stellar dynamo and the dynamics of thin outer convection zones.
Folsom, C. P., Mengel, M. W., Neiner, C., Seach, J. M., Evensberget, D., Marsden, S. C., Carter, B. D.   +6 more
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Rotational modulation in A and F stars: Magnetic stellar spots or convective core rotation? [PDF]

, 2023
The Kepler mission revealed a plethora of stellar variability in the light curves of many stars, some associated with magnetic activity or stellar oscillations.
Kurtz, Donald Wayne, Antoci, Victoria, García, Rafael A, Henriksen, Andreea I., Cantiello, Matteo, Santos, Ângela R. G., Kjeldsen, Hans, Murphy, Simon J, Kurtz, Donald W., Santos, Ângela R G, Murphy, Simon J., Henriksen, Andreea I, Saio, Hideyuki, García, Rafael A., Mathur, Savita   +14 more
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Cosmology with inhomogeneous magnetic fields [PDF]

, 2007
We review spacetime dynamics in the presence of large-scale electromagnetic fields and then consider the effects of the magnetic component on perturbations to a spatially homogeneous and isotropic universe.
Roy Maartens, Christos G. Tsagas, Maartens, Roy, John D. Barrow, Tsagas, Christos G., Barrow, John D.   +5 more
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The Sun's global photospheric and coronal magnetic fields : observations and models [PDF]

, 2012
2012LRSP....9....6M Funding: STFC, the Leverhulme Trust and European Commission’s Seventh Framework Programme (FP7/2007-2013) under the grant agreement SWIFF (project no.
Anthony Yeates, Yeates, A.R., Duncan Mackay, Mackay, D.H., Yeates, Anthony Robinson, Mackay, Duncan Hendry   +5 more
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Influence of surface stressing on stellar coronae and winds [PDF]

, 2013
STFC funding has supported this research.The large-scale field of the Sun is well represented by its lowest energy (or potential) state. Recent observations, by comparison, reveal that many solar-type stars show large-scale surface magnetic fields that ...
Morin, J., Fares, R., Jardine, Moira, Donati, J. -F., Jardine, M., Morin, Julien, Fares, Rim, Donati, J.-F., Vidotto, A. A., Donati, Jean-François, Gombosi, T. I., van Ballegooijen, A., Gombosi, Tamas I.   +12 more
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M-dwarf stellar winds : the effects of realistic magnetic geometry on rotational evolution and planets [PDF]

, 2014
AAV acknowledges support from a Royal Astronomical Society Fellowship. JM acknowledges support from a fellowship of the Alexander von Humboldt foundation.We perform three-dimensional numerical simulations of stellar winds of early-M-dwarf stars.
Morin, J., Gombosi, T.I., Donati, J.F., Opher, M., Gombosi, Tamás, Jardine, M., Morin, Julien, Gombosi, T. I., Vidotto, A. A., Vidotto, A.A., Donati, J. F., Gombosi, Tamas I.   +11 more
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The magnetic fields of intermediate-mass T Tauri stars. I. Magnetic detections and fundamental stellar parameters [PDF]

, 2019
International audienceContext : .The origin of the fossil magnetic fields detected in 5 to 10% of intermediate-mass main sequence stars is still highly debated.
Johns-Krull, C., F. Gallet, Lebreton, Y.,, Johns-Krull, C.,, Bouvier, J.,, Petit, P., Haemmerlé, L., Böhm, T., T. Böhm, Charbonnel, C.,, J. Morin, Haemmerle, L.,, Marsden, S. C., Charbonnel, Corinne, Marsden, C., Morin, J., L. Haemmerlé, Kochukhov, Oleg,, Lebreton, Y., Petit, P.,, C. Charbonnel, Charbonnel, C., Alecian, E.,, Amard, L.,, Hussain, G.,, Alecian, E., Morin, J.,, Folsom, C. P.,, G. Hussain, S. C. Marsden, Folsom, C. P., P. Petit, Hussain, G., Amard, L., E. Alecian, C. Johns-Krull, Marsden, S. C.,, L. Amard, J. Bouvier, C. P. Folsom, Villebrun, F.,, Y. Lebreton, Bouvier, J., O. Kochukhov, Gallet, F.,, Folsom, C., Bohm, T.,, Villebrun, F., Gallet, F., Kochukhov, O., F. Villebrun   +50 more
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Stellar magnetism : empirical trends with age and rotation [PDF]

, 2014
AAV acknowledges support from a Royal Astronomical Society Fellowship and from the Swiss National Science Foundation via an Ambizione Fellowship. SGG acknowledges support from the Science and Technology Facilities Council (STFC) via an Ernest Rutherford ...
G. Hussain, Jeffers, S., Do Nascimento Jr., J.D., Waite, I.A., R. Fares, Folsom, C. P., Gregory, S. G.; id_orcid, P. Petit, Gregory, S. G., Hussain, G., do Nascimento, J. D., Donati, J. -F., Jardine, M., M. Jardine, Vidotto, A. A., Petit, P., I. A. Waite, Marsden, S., S. Marsden, Vidotto, A. A, Nascimento Júnior, José Dias do, Donati, J.F., J. Bouvier, J. Morin, J. D. Do Nascimento, Nascimento, J. D. Do, C. P. Folsom, Donati, J. F., Morin, J., Bouvier, J., J. F. Donati, Waite, I. A., Gregory, S.G., Jeffers, Sandra V., Fares, R., Hussain, G. A. J., Cameron, A. C., A. A. Vidotto, Morin, Julien, do Nascimento Jr., J.-D., A. C. Cameron, S. Jeffers, Cameron, A.C., S. G. Gregory, Vidotto, A.A., Folsom, C.P.   +45 more
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Consequences of spontaneous reconnection at a two-dimensional non-force-free current layer [PDF]

, 2012
Magnetic neutral points, where the magnitude of the magnetic field vanishes locally, are potential locations for energy conversion in the solar corona.
E. R. Priest, Hood, Alan William, Parnell, Clare Elizabeth, Priest, Eric Ronald, Longcope, Dana, J. Fuentes-Fernández, C. E. Parnell, A. W. Hood, Fuentes Fernandez, Jorge, D. W. Longcope   +9 more
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