9 citations · 15 across the 9 of their papers we have counts for
9 papers
Temporal variations of solar inertial mode parameters from GONG (2002-2024) and HMI (2010-2024): Rossby modes () and high-latitude mode
B Lekshmi, Zhi-Chao Liang, Laurent Gizon +2
We studied the temporal evolution of solar inertial modes over the solar cycle using observations from GONG and SDO/HMI. We focused on the high-latitude mode with azimuthal wavenum…
Dynamics of Subsurface Flows in Solar Active Regions During the May 2024 Storm
B Lekshmi, Sushanta Tripathy, Kiran Jain +1
In May 2024, the Sun exhibited intense magnetic activity, marked by numerous high-intensity flares resulting from the interaction and merging of NOAA ARs 13664 and 13668 in the sou…
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…
Seismic differences between solar magnetic cycles 23 and 24 for low-degree modes
Rafael A. Garcia, Sylvain N. Breton, David Salabert +4
Solar magnetic activity follows regular cycles of about 11 years with an inversion of polarity in the poles every 22 years. This changing surface magnetism impacts the properties o…
Temporal Variation of Solar Equatorial Rossby Modes with Azimuthal Orders
B. Lekshmi, Laurent Gizon, Kiran Jain +2
We use nearly two decades of helioseismic data obtained from the GONG (2002-2020) and HMI (2010-2020) ring-diagram pipelines to examine the temporal variations of the properties of…
Connection between Sub-surface Layers and Surface Magnetic Activity over Multiple Solar Cycles
Mackenzie A. Baird, Sushanta C. Tripathy, Kiran Jain
We investigate spatio-temporal evolution of high-degree acoustic mode frequencies of the Sun and the surface magnetic activity, over the course of multiple solar cycles, to improve…
Probing the Sun's Near Surface Shear Layer using HMI Spherical Harmonic Coefficients
Sushanta C. Tripathy, Kiran Jain, Shukurijon Kholikov +1
We have measured zonal and meridional components of subsurface flows up to a depth of 30 Mm below the solar surface by applying the technique of ring diagram on Dopplergrams which…
Helioseismic Investigation of Quasi-biennial Oscillation Source Regions
Kiran Jain, Partha Chowdhury, Sushanta C. Tripathy
We studied the temporal evolution of quasi-biennial oscillations (QBOs) using acoustic mode oscillation frequencies from the Global Oscillation Network Group. The data used here sp…
Subsurface Flows in Active Regions with Peculiar Magnetic Configurations
Kiran Jain, Sushanta C. Tripathy
We present analysis of the evolution of subsurface flows in and around active regions with peculiar magnetic configurations and compare their characteristics with the normal active…