6 papers
XTE J1814-338 as a strange star admixed with bosonic dark matter
Shu-Hua Yang, Fridolin Weber
We show that the compact star XTE J1814-338 can be explained as a strange star admixed with self-interacting bosonic dark matter (BDM), provided the dark matter fraction exceeds ap…
Double White Dwarf Mergers as Progenitors of Long-Period Transients
Manuel Malheiro, Sarah V. Borges, Jaziel G. Coelho +6
There is an ongoing discussion in the literature on the nature of long-period transients (LPTs), radio-emitting sources with periods ranging from hundreds to tens of thousands of s…
Rotating strange dwarfs and their indistinguishability from white dwarfs
Edson Otoniel, José D. V. Arbañil, Geanderson A. Carvalho +1
We investigate the structure of strange dwarfs, modeled as hybrid compact stars composed of a self bound strange quark matter core surrounded by a white dwarf like crust, within a…
The pseudo-complex Friedmann Lemaitre Robertson Walker model and the time dependence of the Hubble constant
L. Maghlaoui, P. O. Hess, F. Weber +1
The pseudocomplex version of the FLRW model is presented within the framework of pseudocomplex General Relativity (pcGR). In this approach, dark energy arises as a geometric conseq…
Representing Equations of State With Strong First-Order Phase Transitions
Lee Lindblom, Steve M. Lewis, Fridolin Weber
Parametric representations of the high-density nuclear equation of state are used in constructing models for interpreting the astrophysical observations of neutron stars. This stud…
Fast Pulsars, Neutron Stars, and Astrophysical Strange Quark Matter Objects
Delaney Farrell, Fridolin Weber, Milva G. Orsaria +5
This book chapter explores key aspects of neutron stars, pulsar glitches, tidal deformability, fast pulsars, the equation of state, and strange quark matter stars. Challenges in di…