Cosmic calibration

Katrin Heitmann

doi:10.1086/506448

2006-07-14

DOI：10.1086/506448

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摘要

En 中文

The complexity and accuracy of current and future precision cosmology observational campaigns has made it essential to develop an efficient technique for directly combining simulation and observational data sets to determine cosmological and model parameters, a procedure we term calibration. Once a satisfactory calibration of the underlying cosmological model is achieved, independent predictions for new observations become possible. For this procedure to be effective, robust characterization of the uncertainty in the calibration process is highly desirable. In this Letter we describe a statistical methodology that can achieve both of these goals. An application example based around dark matter structure formation simulations and a synthetic mass power spectrum data set is used to demonstrate the approach.

Keyword:

cosmological parameters

cosmology : theory

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期刊

Astrophysical Journal

IF:

5.4

论文数:

8.3W

被引数:

32.0W

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