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- W2002201635 abstract "A new method to investigate a possible time-dependence of the dark energy equation of state $w$ is proposed. We apply this methodology to two of the most recent data sets of type Ia supernova (Union2 and SDSS) and the baryon acoustic oscillation peak at $z = 0.35$. For some combinations of these data, we show that there is a clear departure from the standard $Lambda$CDM model at intermediary redshifts, although a non-evolving dark energy component ($dw/dz = 0$) cannot be ruled out by these data. The approach developed here may be useful to probe a possible evolving dark energy component when applied to upcoming observational data." @default.
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- W2002201635 date "2012-02-28" @default.
- W2002201635 modified "2023-10-06" @default.
- W2002201635 title "Probing the time dependence of dark energy" @default.
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- W2002201635 doi "https://doi.org/10.1088/1475-7516/2012/02/042" @default.
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