科研之友
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摘要
Our ignorance of dark energy is generally described by a two-parameter equation of state. In these approaches, a particular ad hoc functional form is assumed, and only two independent parameters are incorporated. We propose a model-independent, multiparameter approach to fitting dark energy and show that next-generation surveys will constrain the equation of state in three or more independent redshift bins to better than 10%. Future knowledge of dark energy will surpass two numbers (e.g., [w(0),w(1)] or [w(0),w(a)]), and we propose a more flexible approach to the analysis of present and future data.
- 出版日期2008-6-20
