3 papers
astro-ph.CO2026
EFT-Ramses: a code to simulate the effective field theory of dark energy
Nathaniel Ota Woodcock, Sownak Bose, Yunhao Gao +1
While the standard CDM paradigm is in excellent agreement with most current cosmological observations, theoretical challenges surrounding the cosmological constant () have st…
astro-ph.IM2025
fiDrizzle-MU: A Fast Iterative Drizzle with Multiplicative Updates
Shen Zhang, Lei Wang, Huanyuan Shan +3
We propose fiDrizzleMU, an algorithm for co-adding exposures via iterative multiplicative updates, replacing the additive correction framework. This method achieves superior anti-a…
astro-ph.CO2025
Nonlinear reconstruction of general dark energy theories
Yunhao Gao, Baojiu Li, Jie Wang
The large variety and number of dark energy (DE) theories make it impractical to perform detailed analyses on a case-by-case basis, which has motivated proposals to ``parameterize"…