Other
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21531301n&link_type=abstract
American Astronomical Society, AAS Meeting #215, #313.01; Bulletin of the American Astronomical Society, Vol. 42, p.313
Other
Scientific paper
We present limits on the equation of state of the dark energy,w, from an analysis of the 6 year data from the ESSENCE Supernova Survey. ESSENCE has observed 228 spectroscopically confirmed type Ia supernovae (SNIa) using the CTIO 4m telescope out to moderate redshifts (z 0.5 +- 0.2). We present lightcurves and a Hubble diagram for the full six year sample combined with complementary SNIa measurements from the CfA3 sample, the Sloan Digital Sky Survey-II, the Supernova Legacy Survey and Higher-z. We combine our results with measurements from baryon acoustic oscillations (BAO) to constrain the matter-energy budget of the universe. We assume a flat LCDM cosmology to place tighter constraints on the equation of state of the dark energy. We improve our treatment of dust in the host galaxies and intrinsic color of the SNIa, and examine other sources of systematic uncertainty. Finally, we examine various non-standard cosmologies with information criterion to assess the relative merits of these models.
Aguilera Claudio
Becker Andrew C.
Blondin Stephan
Challis Peter
Clocchiatti Alejandro
No associations
LandOfFree
Analysis of the 6 year ESSENCE Survey data set: Preliminary Cosmological Results does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Analysis of the 6 year ESSENCE Survey data set: Preliminary Cosmological Results, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Analysis of the 6 year ESSENCE Survey data set: Preliminary Cosmological Results will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-961427