Improved cosmological constraints from a joint analysis of the SDSS-II and SNLS supernova samples

M. Betoule (1) , R. Kessler , J. Guy (1) , J. Mosher , D. Hardin (1) , R. Biswas , P. Astier (1) , P. El-Hage (1) , M. Konig (1) , S. Kuhlmann , J. Marriner , R. Pain (1) , N. Regnault (1) , C. Balland (1) , B. A. Bassett , P. J. Brown , H. Campbell , R. G. Carlberg , F. Cellier-Holzem (1) , D. Cinabro , A. Conley , C. B. D’andrea , D. L. Depoy , M. Doi , R. S. Ellis , S. Fabbro , A. V. Filippenko , R. J. Foley , J. A. Frieman , D. Fouchez (2) , L. Galbany , A. Goobar , R. R. Gupta , G. J. Hill , R. Hlozek , C. J. Hogan , I. M. Hook , D. A. Howell , S. W. Jha , L. Le Guillou (1) , G. Leloudas , C. Lidman , J. L. Marshall , A. Möller (3) , A. M. Mourão , J. Neveu (3) , R. Nichol , M. D. Olmstead , N. Palanque-Delabrouille (3) , S. Perlmutter , J. L. Prieto , C. J. Pritchet , M. Richmond , A. G. Riess , V. Ruhlmann-Kleider (3) , M. Sako , K. Schahmaneche (1) , D. P. Schneider , M. Smith , J. Sollerman , M. Sullivan , N. A. Walton , C. J. Wheeler

1 LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies
2 CPPM - Centre de Physique des Particules de Marseille
3 DPhP - Département de Physique des Particules (ex SPP)

Aims. We present cosmological constraints from a joint analysis of type Ia supernova (SN Ia) observations obtained by the SDSS-II and SNLS collaborations. The dataset includes several low-redshift samples (z< 0.1), all three seasons from the SDSS-II (0.05

Keywords: cosmology: observations; distance scale; dark energy

Domains: Astrophysics [astro-ph]

M. Betoule, R. Kessler, J. Guy, J. Mosher, D. Hardin, et al.. Improved cosmological constraints from a joint analysis of the SDSS-II and SNLS supernova samples. Astronomy and Astrophysics - A&A, 2014, 568, pp.A22. ⟨10.1051/0004-6361/201423413⟩. ⟨cea-01271043⟩