Probing the Equation of State of the Dark Energy with Supernovae

探讨暗能量与超新星的状态方程

• 批准号: 0443378
• 负责人: Christopher Stubbs
• 金额: --
• 依托单位: Harvard University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-04-16 至 2006-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0443378&HistoricalAwards=false
• 关键词: Probing; Equation; State; Dark; Energy

AST-0206329StubbsA recent convergence of observational results has led cosmologists to the surprising conclusion that not only is the Universe expanding, but that the rate of expansion is increasing. This can be thought of as anti-gravity between regions of the vacuum. It appears that the Universe at present is dominated by the gravitational effect of this mysterious Dark Energy. Distant supernovae (exploding stars) provide a means to map out the history of the expansion of the Universe, and can be used to distinguish between different scenarios for the physics that drives an accelerating expansion. This project will detect and monitor over 200 supernovae in order to test different hypotheses for the nature of the Dark Energy.

最近观测结果的趋同使宇宙学家得出了一个惊人的结论：宇宙不仅在膨胀，而且膨胀的速度也在增加。这可以被认为是真空区域之间的反重力。目前看来，宇宙是由这种神秘的暗能量的引力作用所主导的。遥远的超新星（爆炸的恒星）提供了一种描绘宇宙膨胀历史的方法，可以用来区分驱动加速膨胀的不同物理场景。该项目将探测和监测200多颗超新星，以检验关于暗能量本质的不同假设。