Supernova Cosmology and the ESSENCE project
Astrophysics
2007-05-23 v1
Abstract
The proper usage of Type Ia supernovae (SNe Ia) as distance indicators has revolutionized cosmology, and added a new dominant component to the energy density of the Universe, dark energy. Following the discovery and confirmation era, the currently ongoing SNe Ia surveys aim to determine the properties of the dark energy. ESSENCE is a five year ground-based supernova survey aimed at finding and characterizing 200 SNe Ia in the redshift domain z=[0.2-0.8]. The goal of the project is to put constraints on the equation of state parameter, w, of the dark energy with an accuracy of <10%. This paper presents these ongoing efforts in the context of the current developments in observational cosmology.
Cite
@article{arxiv.astro-ph/0510026,
title = {Supernova Cosmology and the ESSENCE project},
author = {Jesper Sollerman and Claudio Aguilera and Andy Becker and Stephane Blondin and Pete Challis and Alejandro Clocchiatti and Alex Filippenko and Ryan Foley and Peter M. Garnavich and Malcolm Hicken and Saurabh Jha and Robert Kirshner and Kevin Krisciunas and Bruno Leibundgut and Weidong Li and Thomas Matheson and Gajus Miknaitis and Armin Rest and Adam G. Riess and Maria Elena Salvo and Brian P. Schmidt and Chris Smith and Jason Spyromilio and Chris Stubbs and Nicholas B. Suntzeff and John L. Tonry and Michael Wood-Vasey and Brian Barris and Tamara Davis and Edvard Mortsell},
journal= {arXiv preprint arXiv:astro-ph/0510026},
year = {2007}
}
Comments
Submitted to EPS13