2 papers
astro-ph.GA2026
The Radial Acceleration Relation in Galaxies and Clusters from a Two-Component, Virial-Motivated Framework
Christine C. Dantas, Andre L. B. Ribeiro, Hugo V. Capelato
We present a comparative analysis of acceleration data for gravitational systems drawn from multiple observational sources, including: (i) early-type galaxies (ETGs) (Lelli et al.…
gr-qc2026
A No-Go Theorem for Quantum Cosmologies with Non-natural Hamiltonians
Christine C. Dantas
The Eisenhart-Duval lift (ED) geometrizes classical dynamics by embedding their trajectories into null geodesics of a higher-dimensional Lorentzian spacetime. However, such a const…