Solar image analysis shows typical astrometric jitter of 0.342 μas pc from activity, below the ~3 μas Earth-planet signal at 1 pc, so stellar contamination does not prevent Earth-like exoplanet astrometry around Sun-like stars.
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2D RMHD simulations show recollimation distance decreases monotonically with magnetization σ, converging to z_MHD/z_HD ∝ (B₀²/P_ext)^{-1/3} in the high-σ regime, with toroidal fields producing localized emission knots and poloidal fields shifting the zone downstream.
citing papers explorer
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Astrometric exoplanet detection survives solar-like stellar contamination
Solar image analysis shows typical astrometric jitter of 0.342 μas pc from activity, below the ~3 μas Earth-planet signal at 1 pc, so stellar contamination does not prevent Earth-like exoplanet astrometry around Sun-like stars.
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2D magnetohydrodynamic jet simulations: properties of recollimation shocks
2D RMHD simulations show recollimation distance decreases monotonically with magnetization σ, converging to z_MHD/z_HD ∝ (B₀²/P_ext)^{-1/3} in the high-σ regime, with toroidal fields producing localized emission knots and poloidal fields shifting the zone downstream.