Author

N. Šarčević

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Preprint Oct 2026

Non-Gaussian Parameter Bias: Formalism and Validation

We present a framework for propagating systematic data mismatches into parameter biases and posterior deformations beyond the Gaussian Fisher approximation. Using the Derivative Approximation for Likelihoods (DALI), we derive analytic expressions for the maximum a posteriori (MAP) point and posterior mean, including a...

N. Šarčević, Matthijs van der Wild, E. Sellentin · 0 citations

Review Sep 2026

Probabilistic characterization of blending with LSST and application to cluster lensing cosmology

Next-generation galaxy surveys, like the Vera C. Rubin Observatory's Legacy Survey of Space and Time (LSST), will deliver unprecedented depth and sky coverage, enabling precise measurements of cosmic probes such as weak lensing and galaxy clustering. However, increased imaging depth leads to significant blending of gal...

Manon Ramel, Cyrille Doux, M. Kuna et al. · 0 citations