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A Stellar Bar Hidden in an Extreme Gas-rich Disk Galaxy at z = 4.055

  • Authors: Leindert A. Boogaard, Luca Costantin, Thor Tepper-García, Joss Bland-Hawthorn, Jacqueline A. Hodge, Cheng-Lin Liao, Mahmoud Hamed, Luis Colina, Fabian Walter, Oscar Agertz, Arjan Bik, Alejandro Crespo Gómez, Emanuele Daddi, Georgios E. Magdis, Pablo G. Pérez-González, Hannah Übler, Axel Weiss

Leindert A. Boogaard et al 2026 The Astrophysical Journal Letters 1006 .

  • Provider: AAS Journals

Caption: Figure 8.

Stellar bar length evolution in cosmological simulations. Bar radius as a function of simulation time, as derived via the Dehnen–Fourier method (see Section 3.1). The GN20 bar radius (﹩{R}_{{\rm{bar}}/{\phi }_{2}}﹩, derived consistently) matches most closely with the simulations with high gas fractions (fgas = 60% and 40%).

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