Galaxy morphologies at cosmic noon with JWST: A foundation for exploring gas transport with bars and spiral arms

Juan M. Espejo Salcedo; Stavros Pastras; Josef Vácha; Claudia Pulsoni; Reinhard Genzel; N. M. Förster Schreiber; Jean-Baptiste Jolly; Capucine Barfety; Jianhang Chen; Giulia Tozzi; Daizhong Liu; Lilian L. Lee; Stijn Wuyts; Linda J. Tacconi; Ric Davies; Hannah Übler; Dieter Lutz; Emily Wisnioski; Jinyi Shangguan; Minju Lee; Sedona H. Price; Frank Eisenhauer; Alvio Renzini; Amit Nestor Shachar; Rodrigo Herrera-Camus

doi:10.1051/0004-6361/202554725

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arXiv · 2503.21738

Galaxy morphologies at cosmic noon with JWST: A foundation for exploring gas transport with bars and spiral arms

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Abstract

The way in which radial flows shape galaxy structure and evolution remains an open question. Internal drivers of such flows, such as bars and spiral arms, known to mediate gas flows in the local Universe, are now observable at high redshift thanks to JWST's unobscured view. We investigated the morphology of massive star-forming galaxies at 0.8 3$ and median values of $v/\sigma > 7$ for spirals and $v/\sigma > 5$ for barred galaxies. This study establishes a population-wide framework for linking galaxy morphology and dynamics at cosmic noon, providing a key reference for future studies on the role of detailed structural features in galaxy evolution.

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Juan M. Espejo Salcedo, Stavros Pastras, Josef Vácha, Claudia Pulsoni, Reinhard Genzel, N. M. Förster Schreiber, Jean-Baptiste Jolly, Capucine Barfety, Jianhang Chen, Giulia Tozzi, Daizhong Liu, Lilian L. Lee, Stijn Wuyts, Linda J. Tacconi, Ric Davies, Hannah Übler, Dieter Lutz, Emily Wisnioski, Jinyi Shangguan, Minju Lee, Sedona H. Price, Frank Eisenhauer, Alvio Renzini, Amit Nestor Shachar, Rodrigo Herrera-Camus. 2025-03-27. Galaxy morphologies at cosmic noon with JWST: A foundation for exploring gas transport with bars and spiral arms. https://doi.org/10.1051/0004-6361%2F202554725

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