Morphological Classification of High-Redshift Galaxies: The Role of Nano-Scale Cosmic Dust in the Evolution of Spiral Structures in JWST Early Release Data

The emergence of ordered galactic morphologies in the early universe constitutes a
longstanding problem in observational cosmology. Conventional hierarchical models
posit that spiral structures arise predominantly at late cosmic times following extended
phases of merger-driven evolution. Recent high-resolution infrared observations from the
James Webb Space Telescope (JWST), however, necessitate a reassessment of this
paradigm. This study conducts a systematic morphological analysis of high-redshift
galaxies (z > 2) using imaging data from the Cosmic Evolution Early Release Science
(CEERS) survey. Emphasis is placed on the influence of interstellar nano-scale dust constituents,
including silicates and polycyclic aromatic hydrocarbons, on observed galactic structure.
Near-Infrared Camera (NIRCam) observations are employed to mitigate dust-induced
extinction and to probe obscured star-forming regions. Through a combination of visual
classification and quantitative structural diagnostics, the analysis identifies well-ordered
spiral disk morphologies during the Cosmic Noon epoch. The results indicate a strong
correlation between dust-regulated star formation and early disk stabilization, implying
that spiral structure formation occurred significantly earlier than predicted by standard
ΛCDM-based models, with important implications for the evolution of the Hubble
Sequence at high redshift.