Skip navigation
Skip navigation

Time Dilation in Type Ia Supernova Spectra at High Redshift

Blondin, Stephanie; Davis, T M; Krisciunas, Kevin; Sollerman, Jesper; Wood-Vasey, W. Michael; Becker, Andrew C; Challis, Peter M; Clocchiatti, Alejandro; Damke, Guillermo; Filippenko, Alexei; Foley, Ryan; Tucker , Bradley


We present multiepoch spectra of 13 high-redshift Type Ia supernovae (SNe Ia) drawn from the literature, the ESSENCE and SNLS projects, and our own separate dedicated program on the ESO Very Large Telescope. We use the Supernova Identification (SNID) code of Blondin and Tonry to determine the spectral ages in the supernova rest frame. Comparison with the observed elapsed time yields an apparent aging rate consistent with the 1 /(1 + z) factor (where z is the redshifi) expected in a homogeneous,...[Show more]

CollectionsANU Research Publications
Date published: 2008
Type: Journal article
Source: Astrophysical Journal, The
DOI: 10.1086/589568


File Description SizeFormat Image
01_Blondin_Time_Dilation_in_Type_Ia_2008.pdf3.48 MBAdobe PDF    Request a copy

Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.

Updated:  19 May 2020/ Responsible Officer:  University Librarian/ Page Contact:  Library Systems & Web Coordinator