The Sun’s Dark Core: Helioseismic and Neutrino Flux Constraints on a Compact Solar Center
The Astrophysical JournalAs dark matter appears to comprise most of the Galactic mass, some of it may accumulate in the cores of stars, thereby making the Sun a laboratory for constraining various dark matter theories.
Earl P. Bellinger, Matt E. Caplan
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Solar Flare 1/f Fluctuations from Amplitude-Modulated Five-Minute Oscillation. [PDF]
Entropy (Basel), 2023 Morikawa M, Nakamichi A.
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The Shape of the Solar Tachocline
The Astrophysical JournalEarly helioseismic results have shown that the tachocline has a prolate shape. However, the models used in those studies constrained the tachocline to be either prolate or oblate.
Sarbani Basu, Sylvain G. Korzennik
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Latitude-dependent Time Variations of the Solar Tachocline
The Astrophysical JournalWe have examined how the characteristics of the tachocline—i.e., the change in rotation rate δ Ω, or the “jump,” the position of the midpoint of the tachocline, r _d , and the width of the tachocline, w _d —change as a function of time at different ...
Sarbani Basu +2 more
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Towards passive non-line-of-sight acoustic localization around corners using uncontrolled random noise sources. [PDF]
Sci Rep, 2023 Boger-Lombard J, Slobodkin Y, Katz O.
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Progress in sunspot helioseismology
Journal of Physics: Conference Series, 2011 Local helioseismology is a set of methods that are used to study wave propagation and infer physical conditions in the solar interior. Sunspots are a particularly challenging target for local helioseismology. In this review, I will show that some new methods (magnetoconvection simulations and numerical wave propagation simulations) lead to shallow ...
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Active-region Modulation of Subsurface Meridional Flows and Magnetic Flux Transport on the Sun
The Astrophysical Journal LettersUsing time–distance helioseismology applied to 14 yr of Solar Dynamics Observatory/Helioseismic and Magnetic Imager observations spanning solar cycle 24 and the rising phase of cycle 25, we present evidence that meridional flows in the lower half of the ...
Anisha Sen +4 more
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Large-Scale Dynamics of the Convection Zone and Tachocline
Living Reviews in Solar Physics, 2005 The past few decades have seen dramatic progress in our understanding of solar interior dynamics, prompted by the relatively new science of helioseismology and increasingly sophisticated numerical models.
Miesch Mark S.
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Helioseismic Properties of Dynamo Waves in the Variation of Solar Differential Rotation
The Astrophysical JournalSolar differential rotation exhibits a prominent feature: its cyclic variations over the solar cycle, referred to as zonal flows or torsional oscillations, are observed throughout the convection zone.
Krishnendu Mandal +2 more
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Turbulence in the Sun is suppressed on large scales and confined to equatorial regions. [PDF]
Sci Adv, 2020 Hanasoge SM, Hotta H, Sreenivasan KR.
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