376 citations · 712 across the 6 of their papers we have counts for
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Tolman-Oppenheimer-Volkoff equations in presence of the Chaplygin gas: stars and wormhole-like solutions
V. Gorini, A. Yu. Kamenshchik, U. Moschella +2
We study static solutions of the Tolman--Oppenheimer--Volkoff equations for spherically symmetric objects (stars) living in a space filled with the Chaplygin gas. Two cases are con…
Gauge-invariant analysis of perturbations in Chaplygin gas unified models of dark matter and dark energy
V. Gorini, A. Y. Kamenshchik, U. Moschella +2
We exploit the gauge-invariant formalism to analyse the perturbative behaviour of two cosmological models based on the generalized Chaplygin gas describing both dark matter and dar…
Stability properties of some perfect fluid cosmological models
Vittorio Gorini, Alexander Kamenshchik, Ugo Moschella +2
Flat FRW perfect fluid cosmologies can be reproduced as particular solutions of suitable field theoretical models. Here we investigate the stability of perfect fluid model trajecto…