Astronomy, Volume 5, Issue 4

The photogravitational circular restricted three-body problem extends the classical circular restricted three-body problem by incorporating radiation pressure from one or both primary bodies, providing a framework for investigating the dynamics of sm...

We develop a thermodynamic formulation of the specific $R_{H_t}=ct$ cosmological framework presented here in which the CMB temperature, the Planck temperature, and a horizon Hawking-temperature scale provide direct expressions for a broad set of cosmologic...

We investigate the implications of interactions between ultralight dark matter (ULDM) and Standard Model fermions for the radiative stability of the ULDM potential. By matching the heavy fermion onto a low-energy scalar effective field theory, we der...

I investigate whether one minimally coupled canonical scalar field can generate, in a single continuous cosmological history, the correlated changes in the sound horizon, late-time expansion, and structure growth that are relevant to the $H_0$, evolving...

We construct a systematic general-relativistic model of the spacetime generated by a slowly rotating, axially symmetric, self-gravitating clump of collisionless matter whose gravitational potential is of Miyamoto–Nagai type. The metric is taken...