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2024

The Ages of the Oldest Astrophysical Objects in an Ellipsoidal Universe

Binici, Selinay Sude, Deliduman, Cemsinan, Dilsiz, Furkan Şakir

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James Webb Space Telescope's (JWST) observations since its launch have shown us that there could be very massive and very large galaxies, as well as massive quasars very early in the history of the universe, conflicting expectations of the $\Lambda$CDM model.

This so-called ''impossibly early galaxy problem'' requires too rapid star formation in the earliest galaxies than appears to be permitted by the $\Lambda$CDM model.
In fact, this might not be a high masses problem, but a ''time-compression problem'': time too short for the observed large and massive structures to form from the initial seeds.
A cosmological model that could allocate more time for the earliest large structures to form would be more conforming to the data than the $\Lambda$CDM model.

The Ages of the Oldest Astrophysical Objects in an Ellipsoidal Universe · Around

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