3 papers
astro-ph.CO2026
Turning dispersion into signal: density-split analyses of pairwise velocities
Aritra Kumar Gon, Yan-Chuan Cai
Pairwise velocities of the large-scale structure encode valuable information about the growth of structure. They can be observed indirectly through redshift-space distortions and t…
astro-ph.CO2025
Estimators for the cross-pairwise kSZ effect: forecasts for the dark energy and modified gravity parameters with Simons Observatory and CMB-S4
Aritra Kumar Gon, Rishi Khatri
We present and study a new cross-pairwise estimator to extract the kinetic Sunyaev Zeldovich (kSZ) signal from galaxy clusters. The existing pairwise kSZ method involves pairing cl…
astro-ph.CO2024
The pairwise and cross-pairwise y-type polarised kinetic Sunyaev Zeldovich effect from transverse velocity of galaxy clusters
Aritra Kumar Gon, Rishi Khatri
We develop a new theoretical framework for studying the pairwise and cross-pairwise polarised kinetic Sunyaev Zeldovich (pkSZ) effect arising from the transverse peculiar velocity…