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Cited by 19,704Cosmology and Gravitation TheoriesGamma-ray bursts and supernovaeAstrophysics and Cosmic Phenomena

The DOI matches its Crossref record; 110 of the 112 references it cites were found in a registry or an index.

Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant

Open access
Riess, Adam G., Filippenko, Alexei V., Challis, Peter, Clocchiatti, Alejandro, Diercks, Alan, Garnavich, Peter M., Gilliland, Ron L., Hogan, Craig J., Jha, Saurabh, Kirshner, Robert P., Leibundgut, B., Phillips, M. M., Reiss, David, Schmidt, Brian P., Schommer, Robert A., Smith, R. Chris, Spyromilio, J., Stubbs, Christopher, Suntzeff, Nicholas B., Tonry, John·1998·The Astronomical Journal
DOI 10.1086/300499
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Abstract

We present spectral and photometric observations of 10 Type Ia supernovae (SNe Ia) in the redshift range 0.16 ≤ z ≤ 0.62. The luminosity distances of these objects are determined by methods that employ relations between SN Ia luminosity and light curve shape. Combined with previous data from our High- z Supernova Search Team and recent results by Riess et al., this expanded set of 16 high-redshift supernovae and a set of 34 nearby supernovae are used to place constraints on the following cosmological parameters: the Hubble constant ( H 0 ), the mass density (Ω M ), the cosmological constant (i.e., the vacuum energy density, Ω Λ ), the deceleration parameter ( q 0 ), and the dynamical age of the universe ( t 0 ). The distances of the high-redshift SNe Ia are, on average, 10%–15% farther than expected in a low mass density (Ω M = 0.2) universe without a cosmological constant. Different light curve fitting methods, SN Ia subsamples, and prior constraints unanimously favor eternally expanding models with positive cosmological constant (i.e., Ω Λ > 0) and a current acceleration of the expansion (i.e., q 0 < 0). With no prior constraint on mass density other than Ω M ≥ 0, the spectroscopically confirmed SNe Ia are statistically consistent with q 0 < 0 at the 2.8 σ and 3.9 σ confidence levels, and with Ω Λ > 0 at the 3.0 σ and 4.0 σ confidence levels, for two different fitting methods, respectively. Fixing a "minimal" mass density, Ω M = 0.2, results in the weakest detection, Ω Λ > 0 at the 3.0 σ confidence level from one of the two methods. For a flat universe prior (Ω M + Ω Λ = 1), the spectroscopically confirmed SNe Ia require Ω Λ > 0 at 7 σ and 9 σ formal statistical significance for the two different fitting methods. A universe closed by ordinary matter (i.e., Ω M = 1) is formally ruled out at the 7 σ to 8 σ confidence level for the two different fitting methods. We estimate the dynamical age of the universe to be 14.2 ± 1.7 Gyr including systematic uncertainties in the current Cepheid distance scale. We estimate the likely effect of several sources of systematic error, including progenitor and metallicity evolution, extinction, sample selection bias, local perturbations in the expansion rate, gravitational lensing, and sample contamination. Presently, none of these effects appear to reconcile the data with Ω Λ = 0 and q 0 ≥ 0.

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Cites

Research works printed but not linked: 20

  1. Bouchet P., 1985, A&A, 149, 300
  2. Branch, D. 1998, ARA&A, in press
  3. Cappellaro E., 1997, A&A, 322, 431
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  5. Filippenko, A. V., etal 1998, ApJ, in press
  6. Fukugita M., 1990, MNRAS, 246, 24
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  9. Holz, D. E. & Wald, R. M. 1998, Phys. Rev. D, in press
  10. Leibundgut, B. 1989, Ph.D. thesis, Basel Univ.
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  12. Mateo, M. & Schechter, P. L. 1989, in Proc. First ESO/ST-ECF Workshop on Data Analysis, ed. P. J. Grosbol, F. Murtaugh, & R. H. Warmels (Garching: ESO), 127
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  14. Riess, A. G. 1996, Ph.D. thesis, Harvard Univ.
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  20. Walterbos, R. 1986, Ph.D. thesis, Leiden Univ.

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Metadata

Authors
Riess, A. G., Filippenko, A. V., Challis, P., Clocchiatti, A., Diercks, A., Garnavich, P. M., Gilliland, R. L., Hogan, C. J., Jha, S., Kirshner, R. P., Leibundgut, B., Phillips, M. M., Reiss, D., Schmidt, B. P., Schommer, R. A., Smith, R. C., Spyromilio, J., Stubbs, C., Suntzeff, N. B., & Tonry, J.
Affiliations
  • University of California, Berkeley (US)
  • Center for Astrophysics Harvard & Smithsonian (US)
  • Pontificia Universidad Católica de Chile (CL)
  • University of Washington (US)
  • Space Telescope Science Institute (US)
  • European Southern Observatory (DE)
  • Association of Universities for Research in Astronomy (US)
  • Mount Stromlo Observatory (AU)
  • University of Hawaiʻi at Mānoa (US)
ORCID
Venue
The Astronomical Journal
Publisher
American Astronomical Society
Published
1998-09
Volume
116
Issue
3
Pages
1009-1038
ISSN
0004-6256 (ISSN-L)
DOI
10.1086/300499
OpenAlex
W2073832139
Cited by
19,704
References
112
Citations by year
2026: 853 · 2025: 1184 · 2024: 1169 · 2023: 1055 · 2022: 906 · 2021: 920 · 2020: 924 · 2019: 928 · 2018: 799 · 2017: 807 · 2016: 906 · 2015: 816 · 2014: 794 · 2013: 925 · 2012: 843
FWCI
178.95
Type
journal article
Language
en
Open access
Locations
  • The Astronomical Journal (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • Digital Access to Scholarship at Harvard (DASH) (Harvard University) (submittedVersion, cc-by)
  • CERN Document Server (European Organization for Nuclear Research) (submittedVersion)
  • ANU Open Research (Australian National University) (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Cosmology and Gravitation Theories
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Gamma-ray bursts and supernovae
  • Physical Sciences › Physics and Astronomy › Nuclear and High Energy Physics › Astrophysics and Cosmic Phenomena
Keywords
Type Ia supernovae, cosmic acceleration, cosmological constant, deceleration parameter, Hubble constant, mass density, luminosity distance, light curve fitting, high-redshift supernovae, flat universe, vacuum energy density, cosmological constraints, systematic uncertainties

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