244 citations · 1.9k across the 75 of their papers we have counts for
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Extracting Information from the Gravitational Redshift of Compact Rotating Objects
Paul Nunez, Marek Nowakowski
When rotation is not taken into account, the measurement of the Gravitational Redshift can provide unique information about the compactness () of the star. Rotation alters the…
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…
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…
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…
Gravitational Equilibrium in the Presence of a Positive Cosmological Constant
Marek Nowakowski, Juan Carlos Sanabria, Alejandro Garcia
We reconsider the virial theorem in the presence of a positive cosmological constant Lambda. Assuming steady state, we derive an inequality of the form rho >= A (Lambda / 4 pi GN)…