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astro-ph.CO2024
The interface of gravity and dark energy
Kristen Lackeos, Richard Lieu
At sufficiently large radii dark energy modifies the behavior of (a) bound orbits around a galaxy and (b) virialized gas in a cluster of galaxies. Dark energy also provides a natur…
physics.gen-ph2024★ 11 cited
The binding of cosmological structures by massless topological defects
Richard Lieu
Assuming spherical symmetry and weak field, it is shown that if one solves the Poisson equation or the Einstein field equations sourced by a topological defect, \ie~a singularity o…