Supernova cosmology and the essence project

Jesper Sollerman, Claudio Aguilera, Andy Becker, Stephane Blondin, Pete Challis, Alejandro Clocchiatti, Alex Filippenko, Ryan Foley, Peter M. Garnavich, Malcolm Hicken, Saurabh Jha, Robert Kirshner, Kevin Krisciunas, Bruno Leibundgut, Weidong Li, Thomas Matheson, Gajus Miknaitis, Armin Rest, Adam G. Riess, Maria Elena SalvoBrian P. Schmidt, Chris Smith, Jason Spyromilio, Chris Stubbs, Nicholas B. Suntzeff, John L. Tonry, Michael Wood-Vasey, Brian Barris, Tamara Davis, Edvard Mörtsell

Research output: Contribution to journalConference articlepeer-review


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.

Original languageEnglish (US)
JournalEuropean Space Agency, (Special Publication) ESA SP
StatePublished - Nov 2006
Externally publishedYes
EventEPS-13 Conference Beyond Einstein - Physics for the 21st Century - Bern, Switzerland
Duration: Jul 11 2005Nov 15 2005


  • Cosmology
  • Supernovae

ASJC Scopus subject areas

  • Aerospace Engineering
  • Space and Planetary Science


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