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arXiv · 0705.1718

Cosmological Constraints from Type Ia Supernovae Peculiar Velocity Measurements

Christopher Gordon·Kate Land·Anze Slosar
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Abstract

We detect the correlated peculiar velocities of nearby type Ia supernovae (SNe), while highlighting an error in some of the literature. We find sigma_8=0.79 +/- 0.22 from SNe, and examine the potential of this method to constrain cosmological parameters in the future. We demonstrate that a survey of 300 low-z SNe (such as the nearby SNfactory) will underestimate the errors on w by about 35% if the coherent peculiar velocities are not included.

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Christopher Gordon, Kate Land, Anze Slosar. 2007-09-07. Cosmological Constraints from Type Ia Supernovae Peculiar Velocity Measurements. https://doi.org/10.1103/physrevlett.99.081301

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