Abstract
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 Ω M0 is necessary. Also in this most favourable case the situation can be problematic.
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Rubano, C., Scudellaro, P. Quintessence or Phoenix?. General Relativity and Gravitation 34, 1931–1939 (2002). https://doi.org/10.1023/A:1020780427925
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DOI: https://doi.org/10.1023/A:1020780427925