Smale, Peter R. 2011 用伽马暴来区分timescape cosmology和lambda CDM模型

主要内容:
说timescape cosmology更好一点儿。

（八字还没有一撇呢，就用来区分宇宙学模型了？）

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Title:		Gamma-ray burst distances and the timescape cosmology
Authors:		Smale, Peter R.
Affiliation:		AA(Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch 8140, New Zealand)
Publication:		Monthly Notices of the Royal Astronomical Society, Volume 418, Issue 4, pp. 2779-2784. (MNRAS Homepage)
Publication Date:		12/2011
Origin:		WILEY
Astronomy Keywords:		cosmological parameters, cosmology: observations, cosmology: theory
Abstract Copyright:		© 2011 The Author Monthly Notices of the Royal Astronomical Society © 2011 RAS
DOI:		10.1111/j.1365-2966.2011.19678.x
Bibliographic Code:		2011MNRAS.418.2779S

Abstract

Gamma-ray bursts can potentially be used as distance indicators, providing the possibility of extending the Hubble diagram to redshifts ˜7. Here we follow the GRB analysis of Schaefer, with the aim of distinguishing the timescape cosmological model from the Λ cold dark matter (ΛCDM) model by means of the additional leverage provided by Gamma-ray bursts (GRBs) in the range 2 ≲z≲ 7. We find that the timescape model fits the GRB sample slightly better than the ΛCDM model, but that the systematic uncertainties are still too little understood to distinguish the models.

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