8 papers
Cosmological Averaging in Nonminimally Coupled Gravity
S. R. Pinto, P. P. Avelino
We address the challenge, commonly referred to as the cosmological averaging problem, of relating the large-scale evolution of an inhomogeneous universe to that predicted by a homo…
Biased Domain Walls and the Origin of Early Massive Structures
Clara Winckler, Pedro P. Avelino, Lara Sousa
Discrete symmetry-breaking phase transitions in the early universe may have caused the formation of networks of sheet-like topological defects, usually referred to as domain walls,…
Deviations from the von Laue condition: Implications for the on-shell Lagrangian of particles and fluids
S. R. Pinto, P. P. Avelino
According to the von Laue condition, the volume integral of the proper pressure inside isolated particles with a fixed structure and finite mass vanishes in the Minkowski limit of…
Particles and their fluids in nontrivial matter extensions to general relativity
P. P. Avelino
According to the standard von Laue condition, the volume-averaged pressure inside particles of fixed mass and structure vanishes in the Minkowski limit of general relativity. Here…
On the seismic modelling of subgiant stars: testing different grid interpolation methods
Miguel Clara, Margarida S. Cunha, Pedro P. Avelino +3
Context. The emergence of mixed modes during the subgiant phase, whose frequencies are characterized by a fast evolution with age, can potentially enable a precise determination of…
Domain walls in light of Cosmic Microwave Background and Pulsar Timing Array data
D. Grüber, P. P. Avelino, L. Sousa
In this paper, we study the compatibility of biased domain wall scenarios with current gravitational wave data. We show that the Cosmic Microwave Background bounds on the fractiona…