version française rss feed
HAL : in2p3-00131067, version 1

Fiche détaillée  Récupérer au format
Thermonuclear Supernovae, Parador d'Aiguablava : Espagne
K Corrections For Type Ia Supernovae and a Test for Spatial Variation of the Hubble Constant
A. Kim, S. Deustua, S. Gabi, G. Goldhaber, D. Groom, I. Hook, M. Kim, J. R. Lee, R. Pain1, C. Pennypacker, S. Perlmutter, I. Small, A. Goobar, R. Ellis, K. Glazebrook, R. Mcmahon, B. Boyle, P. Bunclark, D. Carter, M. Irwin, H. Newberg, A. V. Filippenko, T. Matheson, M. Dopita, J. Mould, W. Couch
SUPERNOVAE Collaboration(s)

Cross-filter K corrections for a sample of "normal" Type Ia supernovae (SNe) have been calculated for a range of epochs. With appropriate filter choices, the combined statistical and systematic K correction dispersion of the full sample lies within 0.05 mag for redshifts z<0.7. This narrow dispersion of the calculated K correction allows the Type Ia to be used as a cosmological probe. We use the K corrections with observations of seven SNe at redshifts 0.3 < z <0.5 to bound the possible difference between the locally measured Hubble constant (H_L) and the true cosmological Hubble constant (H_0).
1 :  LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies
Physique/Astrophysique/Cosmologie et astrophysique extra-galactique

Planète et Univers/Astrophysique
Lien vers le texte intégral :