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Nicolas B. Cowan

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#diffusion models Open access Sep 2026

POSTELLAR: Posterior Stellar Spectrum Sampling—An Alternative to Approximate Stellar Spectra for Exoplanetary Analysis

Abstract 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 unce...

Dhvani Doshi, Nicolas B. Cowan, Yashar Hezaveh et al. · 0 citations

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