Misc,

The Supernova Legacy Survey: Measurement of Omega_M, Omega_Lambda and w from the First Year Data Set

, , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , and . 22 other author(s)
(2005)cite arxiv:astro-ph/0510447 Comment: (The SNLS Collaboration) 24 pages, 13 figures, Accepted in A&A. Computer readable tables at http://snls.in2p3.fr/conf/papers/cosmo1/.

Abstract

We present distance measurements to 71 high redshift type Ia supernovae discovered during the first year of the 5-year Supernova Legacy Survey (SNLS). These events were detected and their multi-color light-curves measured using the MegaPrime/MegaCam instrument at the Canada-France-Hawaii Telescope (CFHT), by repeatedly imaging four one-square degree fields in four bands. Follow-up spectroscopy was performed at the VLT, Gemini and Keck telescopes to confirm the nature of the supernovae and to measure their redshift. With this data set, we have built a Hubble diagram extending to z=1, with all distance measurements involving at least two bands.…(more)

Tags

Users

  • @ad4

Comments and Reviews