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arXiv 1209.2618astro-ph.COgr-qc
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相互作用暗能量与修正引力的区别

The Distinguishability of Interacting Dark Energy from Modified Gravity

Timothy Clemson, Kazuya Koyama

摘要:

我们研究的观测可行性的耦合的精髓模型与他们的膨胀和增长的历史相匹配的修改后的引力宇宙学。我们发现,对于Dvali-Gabadadze-Porrati模型已被拟合到观测,匹配的相互作用暗能量模型是观测不利的。我们还研究了与标量张量理论宇宙学相匹配的相互作用暗能量模型的可解释性,并表明并不总是能够找到一个物理相互作用暗能量模型,该模型共享它们的膨胀和增长历史。

英文摘要:

We study the observational viability of coupled quintessence models with their expansion and growth histories matched to modified gravity cosmologies. We find that for a Dvali-Gabadadze-Porrati model which has been fitted to observations, the matched interacting dark energy models are observationally disfavoured. We also study the distinguishability of interacting dark energy models matched to scalar-tensor theory cosmologies and show that it is not always possible to find a physical interacting dark energy model which shares their expansion and growth histories.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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