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High-Redshift Cosmology in the JWST Era: ΛCDM Tension, Early Massive Galaxies, and the 21 cm Frontier
Abstract: Tracing the Universe’s Origins High-redshift cosmology (z≳6), spanning the Cosmic Dawn and the Epoch of Reionization (EoR), currently stands as the central frontier of astrophysics. This review synthesizes recent findings, particularly those enabled by the James Webb Space Telescope (JWST), against the backdrop of the standard ΛCDM cosmological model. JWST has fundamentally altered the…
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The 9:1 Battle for Time: The Operational Framework and the Dual-Anonymous System that Selects the Universe’s Next Great Discoveries
Summary, Step-by-Step Guide to JWST Proposal Success, and Comprehensive Proposal Checklist The James Webb Space Telescope (JWST) was designed with multiple, complementary access policies—primarily the General Observer (GO) program (open competition), the Guaranteed Time Observations (GTO) (rewarding instrument developers with about 16% of the first three cycles), and Director’s Discretionary Time (DDT) (reserved for time-critical…
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Circular Astronomy 