43 citations · 72 across the 9 of their papers we have counts for
9 papers
Inpainting CMB maps using Partial Convolutional Neural Networks
Gabriele Montefalcone, Maximilian H. Abitbol, Darsh Kodwani +1
We present a novel application of partial convolutional neural networks (PCNN) that can inpaint masked images of the cosmic microwave background. The network can reconstruct both t…
Origin & evolution of the Universe
Darsh Kodwani
The aim of this thesis is to question some of the basic assumptions that go into building the CDM model of our universe. The assumptions we focus on are the initial conditions o…
Initial conditions of the universe: Decaying tensor modes
Darsh Kodwani, P. Daniel Meerburg, Ue-Li Pen +1
Many models of the early universe predict that there should be primordial tensor perturbations. These leave an imprint into the temperature and polarisation anisotropies of the cos…
Screened fifth forces in parity-breaking correlation functions
Darsh Kodwani, Harry Desmond
Cross-correlating two different types of galaxy gives rise to parity breaking in the correlation function that derives from differences in the galaxies' properties and environments…
Initial conditions of the universe: A sign of the sine mode
Darsh Kodwani, P. Daniel Meerburg, Ue-Li Pen +1
In the standard big bang model the universe starts in a radiation dominated era, where the gravitational perturbations are described by second order differential equations, which w…
The effect on cosmological parameter estimation of a parameter dependent covariance matrix
Darsh Kodwani, David Alonso, Pedro Ferreira
Cosmological large-scale structure analyses based on two-point correlation functions often assume a Gaussian likelihood function with a fixed covariance matrix. We study the impact…