CONSTRAINING COSMIC EVOLUTION OF TYPE Ia SUPERNOVAE

@article{Foley2008CONSTRAININGCE,
  title={CONSTRAINING COSMIC EVOLUTION OF TYPE Ia SUPERNOVAE},
  author={R. Foley and A. Filippenko and C. Aguilera and A. Becker and S. Blondin and P. Challis and A. Clocchiatti and R. Covarrubias and T. Davis and P. Garnavich and S. Jha and R. Kirshner and K. Krisciunas and B. Leibundgut and W. Li and T. Matheson and A. Miceli and G. Miknaitis and G. Pignata and A. Rest and A. Riess and B. Schmidt and R. Smith and J. Sollerman and J. Spyromilio and C. Stubbs and J. Tonry and N. Suntzeff and W. M. Wood-Vasey and A. Zenteno},
  journal={The Astrophysical Journal},
  year={2008},
  volume={684},
  pages={68-87}
}
  • R. Foley, A. Filippenko, +27 authors A. Zenteno
  • Published 2008
  • Physics
  • The Astrophysical Journal
  • We present a large-scale effort of creating composite spectra of high-redshift SNe Ia and comparing them to low-redshift counterparts in an attempt to understand possible cosmic evolution of SNe Ia, which has major implications for studies of dark energy. Through the ESSENCE project, we have obtained 107 spectra of 88 high-redshift SNe Ia with excellent light-curve information. In addition, we have obtained 397 spectra of low-redshift SNe Ia through a multiple-decade effort at the Lick and Keck… CONTINUE READING
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