199 citations · 714 across the 13 of their papers we have counts for
14 papers
A Unified Analysis of Four Cosmic Shear Surveys
Chihway Chang, Michael Wang, Scott Dodelson +13
In the past few years, several independent collaborations have presented cosmological constraints from tomographic cosmic shear analyses. These analyses differ in many aspects: the…
Baryonic effects in cosmic shear tomography: PCA parametrization and importance of extreme baryonic models
Irshad Mohammed, Nickolay Y. Gnedin
Baryonic effects are amongst the most severe systematics to the tomographic analysis of weak lensing data which is the principal probe in many future generations of cosmological su…
Perturbative approach to covariance matrix of the matter power spectrum
Irshad Mohammed, Uros Seljak, Zvonimir Vlah
We evaluate the covariance matrix of the matter power spectrum using perturbation theory up to dominant terms at 1-loop order and compare it to numerical simulations. We decompose…
Microlensing as a possible probe of event-horizon structure in quasars
Mihai Tomozeiu, Irshad Mohammed, Manuel Rabold +2
In quasars which are lensed by galaxies, the point-like images sometimes show sharp and uncorrelated brightness variations (microlensing). These brightness changes are associated w…
A supervised machine learning estimator for the non-linear matter power spectrum - SEMPS
Irshad Mohammed, Janu Verma
In this article, we argue that models based on machine learning (ML) can be very effective in estimating the non-linear matter power spectrum (). We employ the prediction abi…
Testing light-traces-mass in Hubble Frontier Fields Cluster MACS-J0416.1-2403
Kevin Sebesta, Liliya L. R. Williams, Irshad Mohammed +2
We reconstruct the projected mass distribution of a massive merging Hubble Frontier Fields cluster MACSJ0416 using the genetic algorithm based free-form technique called Grale. The…