Cosmic complementarity: probing the acceleration of the Universe

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We assess the accuracy with which Omega and Lambda can be measured by combining various types of upcoming experiments. Useful expressions for the Fisher information matrix are derived for classical cosmological tests involving luminosity (eg, SN Ia), angular size, age and number counts. These geometric probes are found to be quite complementary both to each other and to inferences from cluster abundance and the cosmic microwave background (CMB). For instance, a joint analysis of SN Ia and CMB reduces the error bars by about an order of magnitude compared to a separate analysis of either data set.
Submitted to ApJL. Color figures and links at http://www.sns.ias.edu/~max/complementarity.html (faster from the US), from http://www.mpa-garching.mpg.de/~max/complementarity.html (faster from Europe) or from max@ias.edu

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Astrophysics

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http://salesiana.dossiersoluciones.com/handle/123456789/12456

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/astro-ph/9805117
 http://arxiv.org/abs/astro-ph/9805117

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arXiv