Lineweaver CH
School of Physics, University of New South Wales, Sydney NSW 2052, Australia.
Science. 1999 May 28;284(5419):1503-7. doi: 10.1126/science.284.5419.1503.
The age of the universe in the Big Bang model can be calculated from three parameters: Hubble's constant, h; the mass density of the universe, Omegam; and the cosmological constant, OmegaLambda. Recent observations of the cosmic microwave background and six other cosmological measurements reduce the uncertainty in these three parameters, yielding an age for the universe of 13.4 +/- 1.6 billion years, which is a billion years younger than other recent age estimates. A different standard Big Bang model, which includes cold dark matter with a cosmological constant, provides a consistent and absolutely time-calibrated evolutionary sequence for the universe.
在大爆炸模型中,宇宙的年龄可以由三个参数计算得出:哈勃常数h、宇宙的质量密度Ωm以及宇宙学常数ΩΛ。近期对宇宙微波背景的观测和其他六项宇宙学测量减少了这三个参数的不确定性,得出宇宙年龄为134亿±16亿年,这比近期其他年龄估计值小10亿年。一个不同的标准大爆炸模型,其中包括带有宇宙学常数的冷暗物质,为宇宙提供了一个一致且绝对时间校准的演化序列。