3 papers
astro-ph.SR2026
Recurrent Coronal Jets and QPPs: Periodic Reconnection and Localized Heating Across Quiet-Sun to Active Regions
Sudheer K. Mishra, Kartika Sangal, Balveer Singh +3
We analyze quasi-periodic pulsations (QPPs) in recurrent coronal jets driven by periodic magnetic reconnection associated with successive flux emergence in the fan-spine magnetic t…
astro-ph.SR2026
Chromospheric resonator model for sunspot revealed by multi-height observation of umbral wave
Kartika Sangal, A. K. Srivastava, Libo Fu +3
Sunspots are transient, magnetically intense features that host oscillations linked to magnetohydrodynamic (MHD) waves. These waves may contribute to plasma heating and drive mass…
astro-ph.SR2024
Statistical investigation of wave propagation in the quiet-Sun using IRIS spectroscopic observations
Kartika Sangal, A. K. Srivastava, P. Kayshap +2
In the current analysis, we use spectroscopic observations of the quiet-Sun made by IRIS instrument, and investigate wave propagation. We analyze various spectral lines formed in d…