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Cited by 928Cosmology and Gravitation TheoriesGamma-ray bursts and supernovaeDark Matter and Cosmic Phenomena

The DOI matches its Crossref record; 145 of the 145 references it cites were found in a registry or an index.

Observational Constraints on the Nature of Dark Energy: First Cosmological Results from the ESSENCE Supernova Survey

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Wood‐Vasey, W. M., Miknaitis, G., Stubbs, C. W., Jha, S., Riess, A. G., Garnavich, P. M., Kirshner, R. P., Aguilera, C., Becker, A. C., Blackman, J. W., Blondin, S., Challis, P., Clocchiatti, A., Conley, A., Covarrubias, R., Davis, T. M., Filippenko, A. V., Foley, R. J., Garg, A., Hicken, M., Krisciunas, K., Leibundgut, B., Li, W., Matheson, T., Miceli, A., Narayan, G., Pignata, G., Prieto, J. L., Rest, A., Salvo, M. E., Schmidt, B. P., Smith, R. C., Sollerman, J., Spyromilio, J., Tonry, J. L., Suntzeff, N. B., Zenteno, A.·2007·The Astrophysical Journal
DOI 10.1086/518642
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Abstract

We present constraints on the dark energy equation-of-state parameter, w = P /(ρ c 2 ), using 60 SNe Ia from the ESSENCE supernova survey. We derive a set of constraints on the nature of the dark energy assuming a flat universe. By including constraints on (Ω M , w ) from baryon acoustic oscillations, we obtain a value for a static equation-of-state parameter w = -1.05 (stat 1 σ) ± 0.13 (sys) and Ω M = 0.274 (stat 1 σ) with a best-fit χ 2 /dof of 0.96. These results are consistent with those reported by the Supernova Legacy Survey from the first year of a similar program measuring supernova distances and redshifts. We evaluate sources of systematic error that afflict supernova observations and present Monte Carlo simulations that explore these effects. Currently, the largest systematic with the potential to affect our measurements is the treatment of extinction due to dust in the supernova host galaxies. Combining our set of ESSENCE SNe Ia with the first-results Supernova Legacy Survey SNe Ia, we obtain a joint constraint of w = -1.07 (stat 1 σ) ± 0.13 (sys), Ω M = 0.267 (stat 1 σ) with a best-fit χ 2 /dof of 0.91. The current global SN Ia data alone rule out empty (Ω M = 0), matter-only Ω M = 0.3, and Ω M = 1 universes at >4.5 σ. The current SN Ia data are fully consistent with a cosmological constant.

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Authors
Wood‐Vasey, W. M., Miknaitis, G., Stubbs, C. W., Jha, S., Riess, A. G., Garnavich, P. M., Kirshner, R. P., Aguilera, C., Becker, A. C., Blackman, J. W., Blondin, S., Challis, P., Clocchiatti, A., Conley, A., Covarrubias, R., Davis, T. M., Filippenko, A. V., Foley, R. J., Garg, A., Hicken, M., Krisciunas, K., Leibundgut, B., Li, W., Matheson, T., Miceli, A., Narayan, G., Pignata, G., Prieto, J. L., Rest, A., Salvo, M. E., Schmidt, B. P., Smith, R. C., Sollerman, J., Spyromilio, J., Tonry, J. L., Suntzeff, N. B., & Zenteno, A.
Affiliations
  • Center for Astrophysics Harvard & Smithsonian (US)
  • Fermi National Accelerator Laboratory (US)
  • Harvard University (US)
  • SLAC National Accelerator Laboratory (US)
  • Space Telescope Science Institute (US)
  • University of Notre Dame (US)
  • Cerro Tololo Inter-American Observatory (CL)
  • University of Washington (US)
  • Australian National University (AU)
  • Pontificia Universidad Católica de Chile (CL)
  • University of Toronto (CA)
  • University of Copenhagen (DK)
  • University of California, Berkeley (US)
  • European Southern Observatory (DE)
  • The Ohio State University (US)
  • University of Hawaiʻi at Mānoa (US)
ORCID
Venue
The Astrophysical Journal
Publisher
American Astronomical Society
Published
2007-09-10
Volume
666
Issue
2
Pages
694-715
ISSN
  • 0004-637X (ISSN-L)
  • 1538-4357
DOI
10.1086/518642
OpenAlex
W2057351095
Cited by
928
References
145
Citations by year
2026: 13 · 2025: 20 · 2024: 20 · 2023: 9 · 2022: 19 · 2021: 23 · 2020: 18 · 2019: 25 · 2018: 21 · 2017: 20 · 2016: 29 · 2015: 22 · 2014: 39 · 2013: 43 · 2012: 84
FWCI
86.78
Type
journal article
Language
en
Open access
Locations
  • The Astrophysical Journal (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • University of North Texas Digital Library (University of North Texas) (submittedVersion)
  • HAL (submittedVersion)
  • CERN Document Server (European Organization for Nuclear Research) (submittedVersion)
  • OakTrust (Texas A&M University Libraries) (submittedVersion)
  • ANU Open Research (Australian National University) (submittedVersion)
  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (submittedVersion)
  • arXiv (Cornell University)
Funders
  • National Science Foundation (0443378, 0606772)
  • Smithsonian Institution
  • National Aeronautics and Space Administration (NAG59364)
  • W. M. Keck Foundation
  • California Institute of Technology
  • Harvard University
  • Aspen Center for Physics
  • University of Arizona
  • National Research Foundation
  • Danmarks Grundforskningsfond
  • Consejo Nacional de Investigaciones Científicas y Técnicas
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico
  • European Southern Observatory
  • Smithsonian Astrophysical Observatory
  • National Research Council Canada
  • Australian Research Council
  • Comisión Nacional de Investigación Científica y Tecnológica
  • Fondo de Financiamiento de Centros de Investigación en Áreas Prioritarias
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 › Dark Matter and Cosmic Phenomena
Keywords
dark energy, equation of state parameter, Type Ia supernovae, Supernova Legacy Survey, baryon acoustic oscillations, matter density parameter, flat universe, systematic errors, interstellar extinction, cosmological constant, dark energy constraints

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