32 citations · 120 across the 11 of their papers we have counts for
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astro-ph.IM2022★ 3 cited
Analytic auto-differentiable CDM cosmography
Konstantin Karchev
I present general analytic expressions for distance calculations (comoving distance, time coordinate, and absorption distance) in the standard CDM cosmology, allowing for the pr…
astro-ph.IM2022★ 6 cited
Strong-Lensing Source Reconstruction with Denoising Diffusion Restoration Models
Konstantin Karchev, Noemi Anau Montel, Adam Coogan +1
Analysis of galaxy--galaxy strong lensing systems is strongly dependent on any prior assumptions made about the appearance of the source. Here we present a method of imposing a dat…
astro-ph.IM2021★ 14 cited
Strong-lensing source reconstruction with variationally optimised Gaussian processes
Konstantin Karchev, Adam Coogan, Christoph Weniger
Strong-lensing images provide a wealth of information both about the magnified source and about the dark matter distribution in the lens. Precision analyses of these images can be…