Galaxy clusters are the most powerful strong lenses; they greatly magnify the flux of distant and faint sources. Strong lensing also allows for the reconstruction of their mass distribution with sim1% accuracy and enables the investigation of cosmological parameters. The number of known systems of this type is bound to...
L. Leuzzi, M. Meneghetti, A. Adam et al.· Astronomy & Astrophysics· 0 citations
We present a novel approach to perform posterior sampling of the underlying stellar spectrum in high-resolution spectroscopic observations. Our method, postellar, coherently combines information from empirical observations and physics-based models, enabling more accurate spectral recovery while providing uncertainties...
D. Doshi, N. Cowan, Y. Hezaveh et al.· Astrophysical Journal· 1 citation
Tabular foundation models (TFMs) learn to fill in tables the way language models fill in text, and tables are arguably the format in which most physical measurement arrives. Did they learn any physics in the process? They are Bayesian by construction, so the question is what their prior contains. We probe it directly,...
Wassim Tenachi, Y. Hezaveh, L. P. Levasseur et al.· 0 citations
PQMass provides a statistically rigorous method for assessing the performance of a single generative model or the comparison of multiple competing models and scales well to moderately high-dimensional data and thus obviates the need for feature extraction in practical applications.
Pablo Lemos, S. Sharief, Esmeralda S. Whitammer et al.· International Conference on...· 10 citations
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