Cosmological-model-parameter determination from satellite-acquired type Ia and IIP Supernova Data

Journal Article · Thu Aug 17 00:00:00 EDT 2000 · Astrophysical Journal

OSTI ID:834422

Podariu, Silviu; Nugent, Peter; Ratra, Bharat

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 to better than 1 (2, 0.5) at 1 sigma with neutral (worst case, best case) assumptions about data quality.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE; National Science Foundation CAREER Grant AST-9875031 (US)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 834422
• Report Number(s): LBNL-46712; R&D Project: PDSNAP; TRN: US0407119
• Journal Information: Astrophysical Journal, Vol. 553, Issue 1 pt 1; Other Information: Submitted to Astrophysical Journal, Volume 553, No.1 part 1; Journal Publication Date: 05/20/2001; PBD: 17 Aug 2000
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COSMOLOGICAL CONSTANT
COSMOLOGICAL MODELS
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COSMOLOGY OBSERVATION LARGE-SCALE STRUCTURE OF THE UNIVERSE SPACE VEHICLES SUPERNOVAE