28 citations · 82 across the 9 of their papers we have counts for
10 papers
Helioseismic Evidence That the Solar Dynamo Originates near the Tachocline
Krishnendu Mandal, Alexander G. Kosovichev
The exact location of the solar dynamo remains uncertain--whether it operates primarily in the near-surface shear layer, throughout the entire convection zone, or near the tachocli…
Investigating Variations in Solar Differential Rotation by Helioseismology
Krishnendu Mandal, Alexander G. Kosovichev, Valery V. Pipin +1
Helioseismic signatures of dynamo waves have recently been discovered in variations of the solar differential rotation, offering valuable insights into the type of dynamo mechanism…
Structure and Dynamics of the Sun's Interior Revealed by Helioseismic and Magnetic Imager
Alexander Kosovichev, Sarbani Basu, Yuto Bekki +43
High-resolution helioseismology observations with the Helioseismic and Magnetic Imager (HMI) onboard Solar Dynamics Observatory (SDO) provide a unique three-dimensional view of the…
Probing Depth Variations of Solar Inertial Modes through Normal Mode Coupling
Krishnendu Mandal, Shravan M. Hanasoge
Recently discovered inertial waves, observed on the solar surface, likely extend to the deeper layers of the Sun. Utilizing helioseismic techniques, we explore these motions, allow…
Helioseismic Properties of Dynamo Waves in the Variation of Solar Differential Rotation
Krishnendu Mandal, Alexander G. Kosovichev, Valery V. Pipin
Solar differential rotation exhibits a prominent feature: its cyclic variations over the solar cycle, referred to as zonal flows or torsional oscillations, are observed throughout…
Detection of Rossby modes with even azimuthal orders using helioseismic normal-mode coupling
K. Mandal, S. M. Hanasoge, L. Gizon
Retrograde Rossby waves, measured to have significant amplitudes in the Sun, likely have notable implications for various solar phenomena. Rossby waves create small-amplitude, very…
Properties of solar Rossby waves from normal mode coupling and characterizing its systematics
Krishnendu Mandal, Shravan Hanasoge
Rossby waves play an important role in mediating the angular momentum of rotating spherical fluids, creating weather on Earth and tuning exoplanet orbits in distant stellar systems…
Detection of Rossby waves in the Sun using normal-mode coupling
Shravan Hanasoge, Krishnendu Mandal
Rossby waves play a fundamental role in angular momentum processes in rotating fluids. In addition to the potential to shed light on physical mechanisms operating in the solar conv…
Helioseismic inversion to infer depth profile of solar meridional flow using spherical Born kernels
K. Mandal, S. M. Hanasoge, S. P. Rajaguru +1
Accurate inference of solar meridional flow is of crucial importance for the understanding of solar dynamo process. Wave travel times, as measured on the surface, will change if th…
Finite-frequency sensitivity kernels in spherical geometry for time-distance helioseismology
Krishnendu Mandal, Jishnu Bhattacharya, Samrat Halder +1
The inference of internal properties of the Sun from surface measurements of wave travel times is the goal of time-distance helioseismology. A critical step toward the accurate int…