Quintessence or Phoenix?
classification
🌌 astro-ph
keywords
quintessencebasiscasedatadetermineequationestimatefavourable
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We show that it is impossible to determine the state equation of quintessence models on the basis of pure observational SNIa data. An independent estimate of $\Omega_{M0}$ is necessary. Also in this most favourable case the situation can be problematic.
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