Results 1 to 10 of about 435,520 (296)
SEISMIC CONSTRAINTS ON INTERIOR SOLAR CONVECTION [PDF]
The Astrophysical Journal, 2010 We constrain the velocity spectral distribution of global-scale solar convective cells at depth using techniques of local helioseismology. We calibrate the sensitivity of helioseismic waves to large-scale convective cells in the interior by analyzing simulations of waves propagating through a velocity snapshot of global solar convection via methods of ...
Hanasoge, S., Duvall, T., DeRosa, M.
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Seismic Probes of Solar Interior Magnetic Structure
Physical Review Letters, 2012 Sunspots are prominent manifestations of solar magnetoconvection and imaging their subsurface structure is an outstanding problem of wide physical importance. Travel times of seismic waves that propagate through these structures are typically used as inputs to inversions.
Hanasoge, S. +3 more
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Possible Indications of Variations in the Directionality of Beta-Decay Products
Frontiers in Physics, 2021 Some experiments seem to yield strong evidence of variability of beta-decay rates, but other experiments may show little or no such evidence. Some recent experiments help clarify the situation.
Peter A. Sturrock +3 more
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Radial gradient of the solar rotation rate in the near-surface shear layer of the Sun
Frontiers in Astronomy and Space Sciences, 2022 We study the radial gradient of the solar rotation rate in the near-surface shear layer (NSSL) from about .950 R⊙ to the solar surface and its variation during Solar Cycles 23 and 24 with ring-diagram analysis applied to Global Oscillation Network Group (
Rudolf Komm
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The Astrophysical Journal, 2023 Previous studies analyzing the evanescent nature of acoustic waves in the lower solar atmosphere, up to 300 km above the photosphere, have shown an unexpected phase shift of an order of 1 s between different heights.
M. Waidele +2 more
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Element diffusion in the solar interior [PDF]
The Astrophysical Journal, 1994 We study the diffusion of helium and other heavy elements in the solar interior by solving exactly the set of flow equations developed by Burgers for a multi-component fluid, including the residual heat-flow terms. No approximation is made concerning the relative concentrations and no restriction is placed on the number of elements considered.
Thoul, Anne, BAHCALL, J. N., LOEB, A.
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The Sun's Interior Metallicity Constrained by Neutrinos [PDF]
, 2006 Observed solar neutrino fluxes are employed to constrain the interior composition of the Sun. Including the effects of neutrino flavor mixing, the results from Homestake, Sudbury, and Gallium experiments constrain the Mg, Si, and Fe abundances in the ...
Gonzalez, Guillermo
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Solar Physics From Unconventional Viewpoints
Frontiers in Astronomy and Space Sciences, 2018 We explore new opportunities for solar physics that could be realized by future missions providing sustained observations from vantage points away from the Sun-Earth line.
Sarah E. Gibson +8 more
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TOMOGRAPHY OF THE SOLAR INTERIOR [PDF]
Modern Physics Letters A, 2006 Solar oscillations consist of a rich spectrum of internal acoustic waves and surface gravity waves, stochastically excited by turbulent convection. They have been monitored almost continuously over the last ten years with high-precision Doppler images of the solar surface.
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Magneto-Rossby Waves and Seismology of Solar Interior
Frontiers in Astronomy and Space Sciences, 2018 Eleven-year Schwabe cycle in solar activity is not yet fully understood despite of its almost two century discovery. It is generally interpreted as owing to some sort of magnetic dynamo operating below or inside the convection zone.
Teimuraz V. Zaqarashvili +3 more
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