105 citations · 581 across the 24 of their papers we have counts for
4 papers · 1 filter
LazyTB: Extended LTB-solutions with Multiple Interacting Fluids
Kimmo Kainulainen, Enrico D. Schiappacasse, Enrico Schiappacasse +2
We present a low entry barrier numerical code LazyTB that solves the Einstein equations in the ADM-formulation for a general spherically symmetric problem with an arbitrary number…
A Unified Numerical Study of Axion Stars: From the Nonrelativistic Regime to General Relativity
Parisa Arabameri, Paola Arias, Francisco Colipí-Marchant +1
Axion-star mass-radius relations are commonly computed using different orders of relativistic approximation, making it important to determine where these descriptions remain reliab…
Multi-messenger signal from QCD-Axion Ultracompact Minihalos
Dorian W. P. Amaral, Enrico D. Schiappacasse, Karla Tapia-Rebolledo
We explore the multimessenger signatures from ultracompact minihalos (UCMHs) seeded by stellar-mass primordial black holes (PBHs) and composed of QCD-axion dark matter. Using the s…
Dipole Radiation and Kinetic Mixing from Dark Photon Solitons
Enrico D. Schiappacasse, Moira Venegas
Wave-like dark matter composed of spin-1 particles, known as dark photons, is theorized to form clumps called "vector solitons". These solitons are compact astrophysical objects th…