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Browsing by Author "Cally, P. S"

Browsing by Author "Cally, P. S"

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  • 3D Simulations of realistic power halos in magnetohydrostatic sunspot atmospheres: linking theory and observation 
    Rijs, C; Rajaguru, S. P; Przybylski, D; Moradi, H; Cally, P. S; Shelyag, S (IOP Publishing, 2016-01)
    The well-observed acoustic halo is an enhancement in time-averaged Doppler velocity and intensity power with respect to quiet-Sun values that is prominent for the weak and highly inclined field around the penumbra ...
  • p-mode interaction with sunspots 
    Cally, P. S; Moradi, H; Rajaguru, S. P (John-Wiley and Sons, 2016)
    This chapter brings together two of the prominent features of our star the Sun: its well‐developed p‐mode spectrum of global oscillations excited by near‐surface convection, and its magnetic activity famously represented ...
  • A study of acoustic halos in active region NOAA 11330 using multi-height SDO observations 
    Tripathy, S. C; Jain, K; Kholikov, S; Hill, F; Rajaguru, S. P; Cally, P. S (Elsevier B.V, 2018-01)
    We analyze data from the Helioseismic Magnetic Imager (HMI) and the Atmospheric Imaging Assembly (AIA) instruments on board the Solar Dynamics Observatory (SDO) to characterize the spatio-temporal acoustic power distribution ...

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