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Semi-empirical Models of Galaxy Formation and Evolution

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arxiv 2502.12764 v1 pith:CYPZFN4K submitted 2025-02-18 astro-ph.GA

Semi-empirical Models of Galaxy Formation and Evolution

classification astro-ph.GA
keywords modelsevolutiongalaxysemi-empiricalsemsformationhybridreview
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We provide a review on semi-empirical models of galaxy formation and evolution. We present a brief census of the three main modeling approaches to galaxy evolution, namely hydrodynamical simulations, semi-analytic models, and semi-empirical models (SEMs). We focus on SEMs in their different flavors, i.e. interpretative, descriptive and hybrid, discussing the peculiarities and highlighting virtues and shortcomings for each of these variants. We dissect a simple and recent hybrid SEM from our team to highlight some technical aspects. We offer some outlook on the prospective developments of SEMs. Finally, we provide a short summary of this review.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Semi-empirical Predictions for Ultra-deep Radio Counts of Star-forming Galaxies with the SKAO

    astro-ph.GA 2026-06 unverdicted novelty 4.0

    SEMPER predicts SKA-Mid Band 2 observations in under 20 hours will recover at least 20% of the total SFRD from radio-emitting SFGs up to z≈6, including NIR-dark galaxies.

  2. Machine Learning Techniques for Astrophysics and Cosmology: Photometric Redshifts

    astro-ph.IM 2026-05 unverdicted novelty 3.0

    AI techniques for photometric redshift estimation have converged and are now limited by the size, systematics, and selection effects in spectroscopic training samples rather than by methodology.