3 papers
astro-ph.CO2026
Core-Halo Mass Relation in Cosmological Vector Dark Matter
Jiajun Chen, Yonghao Yao, David J. E. Marsh
We study the cosmological core-halo relation in vector dark matter using three-component Schrödinger-Poisson simulations. Starting from cosmological vector-field initial conditions…
hep-ph2026
Spin Polarization of Proca Stars Formed by Gravitational Bose--Einstein Condensation
Jiajun Chen
We study the internal spin polarization of Proca stars formed by gravitational Bose--Einstein condensation of a three-component nonrelativistic vector field. In idealized periodic-…
astro-ph.CO2020
New insights into the formation and growth of boson stars in dark matter halos
Jiajun Chen, Xiaolong Du, Erik W. Lentz +2
This work studies the formation and growth of boson stars and their surrounding miniclusters by gravitational condensation using non-linear dynamical numerical methods. Fully dynam…