Cosmological-Model-Parameter Determination from Satellite-Acquired Type Ia and IIP Supernova Data

Details Cosmological-Model-Parameter Determination from Satellite-Acquired Type Ia and IIP Supernova Data Cosmological-Model-Parameter Determination from Satellite-Acquired Type Ia and IIP Supernova Data

2000-08-17

arxiv.org/abs/astro-ph/0008281v2

Astrophys.J. 553 (2001) 39

Astronomy and Astrophysics

Astrophysics

16 pages, 6 figures

Scientific paper

10.1086/320639

We examine the constraints that satellite-acquired Type Ia and IIP supernova apparent magnitude versus redshift data will place on cosmological model parameters in models with and without a constant or time-variable cosmological constant $\Lambda$. High-quality data which could be acquired in the near future will result in tight constraints on these parameters. For example, if all other parameters of a spatially-flat model with a constant $\Lambda$ are known, the supernova data should constrain the non-relativistic matter density parameter $\Omega_0$ to better than 1% (2%, 0.5%) at 1$\sigma$ with neutral (worst case, best case) assumptions about data quality.

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