Entropy perturbations in quartessence Chaplygin models

Details Entropy perturbations in quartessence Chaplygin models Entropy perturbations in quartessence Chaplygin models

2003-06-02

arxiv.org/abs/astro-ph/0306004v2

Phys.Rev. D68 (2003) 061302

Astronomy and Astrophysics

Astrophysics

references added, one figure corrected, results unchanged

Scientific paper

10.1103/PhysRevD.68.061302

We show that entropy perturbations can eliminate instabilities and
oscillations, in the mass power spectrum of the quartessence Chaplygin models.
Our results enlarge the current parameter space of models compatible with large
scale structure and cosmic microwave background (CMB) observations.

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