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The effect of magnetic fields on γ-ray bursts inferred from multi-wavelength observations of the burst of 23 January 1999
Gamma-ray bursts (GRBs) are thought to arise when an extremely relativistic outflow of particles from a massive explosion (the nature of which is still unclear) interacts with material surroundingExpand
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The stellar rotation-activity relationship in fully convective M dwarfs
The coronal activity-rotation relationship is considered to be a proxy for the underlying stellar dynamo responsible for magnetic activity in solar and late-type stars. While this has been studied inExpand
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Explaining the coexistence of large-scale and small-scale magnetic fields in fully convective stars
Despite the lack of a shear-rich tachocline region low-mass fully convective stars are capable of generating strong magnetic fields, indicating that a dynamo mechanism fundamentally different fromExpand
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Scaling laws in spherical shell dynamos with free-slip boundaries
Abstract Numerical simulations of convection driven rotating spherical shell dynamos have often been performed with rigid boundary conditions, as is appropriate for the metallic cores of terrestrialExpand
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CONSISTENT SCALING LAWS IN ANELASTIC SPHERICAL SHELL DYNAMOS
Numerical dynamo models always employ parameter values that differ by orders of magnitude from the values expected in natural objects. However, such models have been successful in qualitativelyExpand
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Formation of starspots in self-consistent global dynamo models: Polar spots on cool stars
Observations of cool stars reveal dark spot-like features on their surfaces. Compared to sunspots, starspots can be bigger or cover a larger fraction of the stellar surface. While sunspots appearExpand
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Approaching a realistic force balance in geodynamo simulations
Significance Flow in Earth’s liquid core is expected to be primarily governed by the Coriolis force due to Earth’s rotation, the buoyancy force driving the convection, and the Lorentz force due toExpand
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Estimating the magnetic field strength in hot Jupiters
A large fraction of known Jupiter like exoplanets are inflated as compared to Jupiter. These "hot" Jupiters orbit close to their parent star and are bombarded with intense starlight. Many theoriesExpand
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Effect of shear and magnetic field on the heat-transfer efficiency of convection in rotating spherical shells
We study rotating thermal convection in spherical shells. We base our analysis on a set of about 450 direct numerical simulations of the (magneto)hydrodynamic equations under the BoussinesqExpand
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Magnetic cycles in a dynamo simulation of fully convective M-star Proxima Centauri
The recent discovery of an Earth-like exoplanet around Proxima Centauri has shined a spot light on slowly rotating fully convective M-stars. When such stars rotate rapidly (period $\lesssim 20$Expand
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