AI 中文总结
研究提出暗能量Barboza-Alcaniz参数化的新推广,为三参数模型,可解决原模型未来问题。通过与其他模型对比,发现宇宙学数据更支持新模型,且其定性行为类似原模型但加速率稍小。
AI 中文摘要
提出了暗能量的Barboza-Alcaniz参数化的一种推广。这是一个三参数模型,能解决未来时期Barboza-Alcaniz行为的缺点。研究表明宇宙学数据更支持新参数化而非Barboza-Alcaniz模型和ΛCDM。还考虑了该模型的宇宙学意义,其定性行为类似原模型,但加速率稍小。
英文摘要
A generalization of the Barboza-Alcaniz parametrization of dark energy is proposed. This is a three-parameter model which can resolve the shortcomings of the Barboza-Alcaniz behavior at future times. We show that cosmological data favor the new parametrization over both the Barboza-Alcaniz model and $Λ$CDM. We also consider the cosmological implications of the model and show that the qualitative behavior mimics to the original Barboza-Alcaniz model, with a slightly smaller acceleration rate.
Comments13 pages, 13 figures