Journal article
Marginal evidence for cosmic acceleration from Type Ia supernovae
- Abstract:
- The ‘standard’ model of cosmology is founded on the basis that the expansion rate of the universe is accelerating at present — as was inferred originally from the Hubble diagram of Type Ia supernovae. There exists now a much bigger database of supernovae so we can perform rigorous statistical tests to check whether these ‘standardisable candles’ indeed indicate cosmic acceleration. Taking account of the empirical procedure by which corrections are made to their absolute magnitudes to allow for the varying shape of the light curve and extinction by dust, we find, rather surprisingly, that the data are still quite consistent with a constant rate of expansion.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 5.5MB, Terms of use)
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- Publisher copy:
- 10.1038/srep35596
Authors
+ Danish National Research Foundation
More from this funder
- Grant:
- Discovery Center at the Niels Bohr Institute
- Niels Bohr Professorship to SS
- Publisher:
- Nature Publishing Group
- Journal:
- Scientific Reports More from this journal
- Volume:
- 6
- Issue:
- 35596
- Pages:
- 1-8
- Publication date:
- 2016-11-01
- Acceptance date:
- 2016-10-03
- DOI:
- EISSN:
-
2045-2322
- ISSN:
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2045-2322
- Pubs id:
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pubs:531980
- UUID:
-
uuid:5838e424-e10c-4b6e-b47c-c42119dcb01e
- Local pid:
-
pubs:531980
- Source identifiers:
-
531980
- Deposit date:
-
2016-06-05
Terms of use
- Copyright holder:
- © Nielson, Guffanti, & Sarkar
- Copyright date:
- 2016
- Notes:
- This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
- Licence:
- CC Attribution (CC BY)
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