A New Mechanism of Celestial‑Body Evolution: A Unified Model of Iron‑Nickel Core Coalescence

English Abstract The conventional theory of celestial‑body evolution relies on gravitational collapse and random density fluctuations, yet it fails to resolve three critical observational contradictions: (1) the rapid assembly of massive galaxies in the early universe; (2) the overabundant iron‑nickel cores of terrestrial planets compared to average nebular heavy element abundance; (3) the difficulty for diffuse H/He nebulae to overcome thermal disorder and trigger coherent collapse. This paper puts forward the iron‑nickel core coalescence hypothesis and establishes a unified physical model linking microscopic magnetic coupling to macroscopic gravitational evolution. The evolutionary process is divided into three phases. In the nucleation phase, ferromagnetic iron and nickel atoms spontaneously aggregate under intrinsic magnetic moments and directional Field‑Energy Aggregation Force (FEAF), forming compact solid cores that act as the necessary prerequisite to suppress thermal turbulence. In the activation phase, when core density and mass exceed critical values, FEAF transforms from iron‑selective directional attraction to universal broad‑spectrum attraction, which corresponds to macroscopic gravity. In the growth phase after gravitational activation, a positive‑feedback accretion loop accelerates mass accumulation and shapes spherical celestial bodies. Revised on the basis of the author’s previous Zenodo preprint[7], this work fixes the dimensional error of FEAF, derives full quantitative magnetic dipole formulas, standardizes all physical constants, and elaborates the microscopic spacetime‑bending mechanism driven by magnetic energy coupling. The model delivers quantitatively reproducible explanations for high‑redshift galaxies, super‑Earth iron cores and stellar metallicity thresholds, and builds an integrated evolutionary framework for planets and stars, offering novel fundamental perspectives on the origin of gravity with theoretical and engineering applicability. 中文摘要 传统天体形成理论以引力坍缩与随机密度涨落为核心框架,难以合理解释三大关键观测难题:其一,宇宙极早期何以快速形成大质量星系;其二,类地行星为何普遍拥有远高于星云平均丰度的致密铁核;其三,弥散氢氦星云如何突破热运动壁垒,实现有序坍缩并形成天体。 本文提出铁镍核心抱团假说,构建一套从微观磁相互作用到宏观引力演化的统一物理模型,系统阐释天体形成的完整过程:第一,成核阶段,星云中铁、镍等铁磁元素凭借固有磁矩与定向场能聚合力(FEAF)优先团聚,形成致密稳定的固态核心,这是天体形成的必要前提,也是突破热运动无序干扰的核心途径;第二,激活阶段,当核心质量与密度突破临界阈值,场能聚合力从“铁磁选择性吸引”发生相变,转化为“全域广谱吸引”,宏观引力由此被激活;第三,增长阶段,引力激活后,天体进入质量——吸积正反馈循环,驱动物质快速坍缩并形成球状结构。 本模型在前期预印本基础上完成全面修订,修正场能聚合力量纲定义,完善磁偶极耦合定量推导、完整物理常量与磁能诱导时空弯曲微观相变机理,首次实现永磁序与引力场统一,针对早期星系、超级地球铁核、恒星金属丰度下限等观测给出可定量、可复现解释,建立行星与恒星一体化演化范式,为引力起源研究提供全新底层思路,兼具理论价值与工程参考意义。