Type Ia supernovae and the acceleration of the universe: results from the ESSENCE Supernova Survey - AstrophysicsReport as inadecuate




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Abstract: The ESSENCE project was a six year supernova search carried out with the CTIO4-m telescope. We also obtained spectra with many of the world-s largestground-based telescopes and observed some of our SNe with the Hubble SpaceTelescope and the Spitzer Space Telescope. We achieved our goal of discoveringover 200 Type Ia SNe in the redshift range 0.2 to 0.8. With these data wedetermined the cosmic equation of state parameter to +- 10 percent. The dataare consistent with a geometrically flat universe whose dark energy isequivalent to Einstein-s cosmological constant.



Author: Kevin Krisciunas

Source: https://arxiv.org/







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