97 citations · 216 across the 7 of their papers we have counts for
7 papers
Astrophysical Configurations with Background Cosmology: Probing Dark Energy at Astrophysical Scales
Andres Balaguera-Antolinez, David F. Mota, Marek Nowakowski
We explore the effects of a positive cosmological constant on astrophysical and cosmological configurations described by a polytropic equation of state. We derive the conditions fo…
From Global to Local Dynamics: Effects of the Expansion on Astrophysical Structures
A. Balaguera-Antolinez, M. Nowakowski
We explore the effects of background cosmology on large scale structures with non-spherical symmetry by using the concept of quasi-equilibrium which allows certain internal propert…
Ellipsoidal configurations in the de Sitter spacetime
A. Balaguera-Antolinez, D. F. Mota, M. Nowakowski
The cosmological constant modifies certain properties of large astrophysical rotating configurations with ellipsoidal geometries, provided the objects are not too compact. Assu…
Dark Energy in an Astrophysical Context
Marek Nowakowski, Andres Balaguera-Antolinez
We explore local consequences of a non-zero cosmological constant on astrophysical structures. We find that the effects are not only sensitive to the density of the configurations…
Scales Set by the Cosmological Constant
Andres Balaguera-Antolinez, Christian G. Boehmer, Marek Nowakowski
The cosmological constant sets certain scales important in cosmology. We show that Lambda in conjunction with other parameters like the Schwarzschild radius leads to scales relevan…
Equilibrium of large astrophysical structures in the Newton-Hooke spacetime
A. Balaguera-Antolinez, M. Nowakowski
Using the scalar and tensor virial equations, the Lane-Emden equation expressing the hydrostatic equilibrium and small oscillations around the equilibrium, we show how the cosmolog…