标题： 哈勃图扩展到z>>1：伽马射线爆发的性质证实了Lambda-CDM模型 显示英文标题

标题： The Hubble diagram extended to z>>1: the gamma-ray properties of GRBs confirm the Lambda-CDM model

摘要： 通过使用跨越尽可能大红移范围的标准烛光，可以对宇宙学参数施加严格的约束。我们提议将Ia型超新星和长伽马射线暴（GRBs）视为一类烛光。利用最近发布的超新星遗产调查和{\it 伽马射线暴的能态和其他瞬时伽马射线辐射特性的紧密相关性的最新发现}，我们能够标准化这两类天体的光度/能量。这样，我们可以联合使用GRB和SNIa作为宇宙学探针，通过我们迄今为止仅应用于GRBs的同一贝叶斯方法来约束Omega_m和Omega_L以及暗能量的状态方程参数。尽管数量差异很大（115个SNIa与19个GRBs），我们证明引入GRBs后对Omega_m和Omega_L的约束得到了显著改善。更重要的是，组合样本的结果与Lambda-CDM协调宇宙学模型高度一致，并不需要暗能量状态方程的变化。 显示英文摘要

摘要： Tight constraints on cosmological parameters can be obtained with standard candles spanning a range of redshifts as large as possible. We propose to treat SN Ia and long Gamma-Ray Bursts (GRBs) as a single class of candles. Taking advantage of the recent release of the Supernova Legacy Survey and {\it the recent finding of a tight correlation among the energetics and other prompt gamma-ray emission properties of GRBs}, we are able to standardize the luminosities/energetics of both classes of objects. In this way we can jointly use GRB and SNIa as cosmological probes to constrain Omega_m and Omega_L and the Dark Energy equation of state parameters through the same Bayesian method that we have, so far, applied to GRBs alone. Despite the large disparity in number (115 SNIa versus 19 GRBs) we show that the constraints on Omega_m and Omega_L are greatly improved by the inclusion of GRBs. More importantly, the result of the combined sample is in excellent agreement with the Lambda-CDM concordance cosmological model and does not require an evolving equation of state for the Dark Energy.