Ashim Sen Gupta

collaborators

2 papers

astro-ph.CO2025

K-mouflage at high $k$ : extending the reach of $Hi-COLA$

Ashim Sen Gupta, Bartolomeo Fiorini, Tessa Baker

The $Hi-COLA$ code is an efficient dark matter simulation suite that flexibly handles the Horndeski family of modified gravity models. In this work we extend the scope of…

astro-ph.CO2024

Matter Power Spectra in Modified Gravity: A Comparative Study of Approximations and $N$ -Body Simulations

Benjamin Bose, Ashim Sen Gupta, Bartolomeo Fiorini +9

Testing gravity and the concordance model of cosmology, $I^$ CDM, at large scales is a key goal of this decade's largest galaxy surveys. Here we present a comparative study of dark…

K-mouflage at high k: extending the reach of Hi-COLA

Matter Power Spectra in Modified Gravity: A Comparative Study of Approximations and N-Body Simulations

K-mouflage at high $k$ : extending the reach of $Hi-COLA$

Matter Power Spectra in Modified Gravity: A Comparative Study of Approximations and $N$ -Body Simulations