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Thermonuclear Supernovae pp 777–784Cite as

Observation of Cosmological Time Dilation Using Type Ia Supernovae as Clocks

The Supernova Cosmology Project: III

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Part of the book series: NATO ASI Series ((ASIC,volume 486))

Abstract

This work is based on the first results from a systematic search for high redshift Type Ia supernovae. Using filters in the R-band we discovered seven such SNe, with redshift z = 0.3 — 0.5, before or at maximum light. Type Ia SNe are known to be a homogeneous group of SNe, to first order, with very similar light curves, spectra and peak luminosities. In this talk we report that the light curves we observe are all broadened (time dilated) as expected from the expanding universe hypothesis. Small variations from the expected 1 + z broadening of the light curve widths can be attributed to a width-brightness correlation that has been observed for nearby SNe (z < 0.1). We show in this talk the first clear observation of the cosmological time dilation for macroscopic objects.

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Author information

Authors and Affiliations

  1. E. O. Lawrence Berkeley National Laboratory ε Center for Particle Astrophysics, University of California, Berkeley, USA

    G. Goldhaber, S. Deustua, S. Gabi, D. Groom, I. Hook, A. Kim, M. Kim, J. Lee, R. Pain, C. Pennypacker, S. Perlmutter & I. Small

  2. University of Stockholm, Schweden

    A. Goobar

  3. Institute of Astronomy, Cambridge University, UK

    R. Ellis & R. Mcmahon

  4. Royal Greenwich Observatory, UK

    B. Boyle, P. Bunclark, D. Carter, K. Glazebrook & M. Irwin

  5. Fermi National Accelerator Laboratory, USA

    H. Newberg

  6. University of California, Berkeley, USA

    A. V. Filippenko & T. Matheson

  7. MSSSO, Australian National University, Australian

    M. Dopita & J. Mould

  8. University of New South Wales, UK

    W. Couch

  9. CNRS-IN2P3, University of Paris, UK

    R. Pain

  10. Anglo-Australian Observatory, Australian

    K. Glazebrook

Authors
  1. G. Goldhaber
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  2. S. Deustua
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  3. S. Gabi
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  4. D. Groom
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  5. I. Hook
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  6. A. Kim
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  7. M. Kim
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  8. J. Lee
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  9. R. Pain
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  10. C. Pennypacker
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  11. S. Perlmutter
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  12. I. Small
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  13. A. Goobar
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  14. R. Ellis
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  15. R. Mcmahon
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  16. B. Boyle
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  17. P. Bunclark
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  18. D. Carter
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  19. K. Glazebrook
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  20. M. Irwin
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  21. H. Newberg
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  22. A. V. Filippenko
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  23. T. Matheson
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  24. M. Dopita
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  25. J. Mould
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  26. W. Couch
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Editor information

Editors and Affiliations

  1. Department of Astronomy, University of Barcelona, Barcelona, Spain

    P. Ruiz-Lapuente  & R. Canal  & 

  2. Institute for Space Studies of Catalonia, Barcelona, Spain

    J. Isern

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© 1997 Springer Science+Business Media Dordrecht

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Goldhaber, G. et al. (1997). Observation of Cosmological Time Dilation Using Type Ia Supernovae as Clocks. In: Ruiz-Lapuente, P., Canal, R., Isern, J. (eds) Thermonuclear Supernovae. NATO ASI Series, vol 486. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5710-0_48

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  • DOI: https://doi.org/10.1007/978-94-011-5710-0_48

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-6408-8

  • Online ISBN: 978-94-011-5710-0

  • eBook Packages: Springer Book Archive

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