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Initial Hubble Diagram Results from the Nearby Supernova Factory

Abstract : The use of Type Ia supernovae as distance indicators led to the discovery of the accelerating expansion of the universe a decade ago. Now that large second generation surveys have significantly increased the size and quality of the high-redshift sample, the cosmological constraints are limited by the currently available sample of ~50 cosmologically useful nearby supernovae. The Nearby Supernova Factory addresses this problem by discovering nearby supernovae and observing their spectrophotometric time development. Our data sample includes over 2400 spectra from spectral timeseries of 185 supernovae. This talk presents results from a portion of this sample including a Hubble diagram (relative distance vs. redshift) and a description of some analyses using this rich dataset.
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http://hal.in2p3.fr/in2p3-00347476
Contributor : Sylvie Flores <>
Submitted on : Tuesday, December 16, 2008 - 9:20:39 AM
Last modification on : Friday, April 10, 2020 - 5:23:17 PM

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  • HAL Id : in2p3-00347476, version 1
  • ARXIV : 0810.3499

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S. Bailey, G. Aldering, P. Antilogus, C. Aragon, C. Baltay, et al.. Initial Hubble Diagram Results from the Nearby Supernova Factory. 34th International Conference on High Energy Physics - ICHEP08, Jul 2008, Philadelphia, United States. ⟨in2p3-00347476⟩

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