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The Pantheon+ analy...
The Pantheon+ analysis : cosmological constraints
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- Brout, Dillon (författare)
- Center for Astrophysics, Harvard & Smithsonian, MA, Cambridge, United States
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- Scolnic, Dan (författare)
- Department of Physics, Duke University, NC, Durham, United States
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- Popovic, Brodie (författare)
- Department of Physics, Duke University, NC, Durham, United States
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visa fler...
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- Riess, Adam G. (författare)
- Space Telescope Science Institute, MD, Baltimore, United States; Department of Physics and Astronomy, Johns Hopkins University, MD, Baltimore, United States
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- Carr, Anthony (författare)
- School of Mathematics and Physics, University of Queensland, QLD, Brisbane, Australia
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- Zuntz, Joe (författare)
- Institute for Astronomy, University of Edinburgh, Edinburgh, United Kingdom
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- Kessler, Rick (författare)
- Kavli Institute for Cosmological Physics, University of Chicago, IL, Chicago, United States; Department of Astronomy and Astrophysics, University of Chicago, IL, Chicago, United States
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- Davis, Tamara M. (författare)
- School of Mathematics and Physics, University of Queensland, QLD, Brisbane, Australia
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- Hinton, Samuel (författare)
- School of Mathematics and Physics, University of Queensland, QLD, Brisbane, Australia
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- Jones, David (författare)
- Department of Astronomy and Astrophysics, University of California, CA, Santa Cruz, United States
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- D’Arcy Kenworthy, W. (författare)
- Department of Physics and Astronomy, Johns Hopkins University, MD, Baltimore, United States
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- Peterson, Erik R. (författare)
- Department of Physics, Duke University, NC, Durham, United States
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- Said, Khaled (författare)
- School of Mathematics and Physics, University of Queensland, QLD, Brisbane, Australia
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- Taylor, Georgie (författare)
- Research School of Astronomy and Astrophysics, Australian National University, Canberra, Australia
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- Ali, Noor (författare)
- Umeå universitet,Institutionen för fysik
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- Armstrong, Patrick (författare)
- Mt. Stromlo Observatory, The Research School of Astronomy and Astrophysics, Australian National University, ACT, Australia
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- Charvu, Pranav (författare)
- Department of Physics, Duke University, NC, Durham, United States
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- Dwomoh, Arianna (författare)
- Department of Physics, Duke University, NC, Durham, United States
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- Meldorf, Cole (författare)
- Department of Astronomy and Astrophysics, University of Chicago, IL, Chicago, United States
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- Palmese, Antonella (författare)
- Department of Physics, University of California, CA, Berkeley, United States
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- Qu, Helen (författare)
- Department of Physics and Astronomy, University of Pennsylvania, PA, Philadelphia, United States
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- Rose, Benjamin M. (författare)
- Department of Physics, Duke University, NC, Durham, United States
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- Sanchez, Bruno (författare)
- Department of Physics, Duke University, NC, Durham, United States
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- Stubbs, Christopher W. (författare)
- Center for Astrophysics, Harvard & Smithsonian, MA, Cambridge, United States; Department of Physics, Harvard University, MA, Cambridge, United States
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- Vincenzi, Maria (författare)
- Department of Physics, Duke University, NC, Durham, United States
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- Wood, Charlotte M. (författare)
- Department of Physics and Astronomy, University of Notre Dame, IN, Notre Dame, United States
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- Brown, Peter J. (författare)
- Department of Physics and Astronomy, Texas A&M University, TX, College Station, United States; George P. and Cynthia Woods Mitchell Institute for Fundamental Physics & Astronomy, TX, College Station, United States
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- Chen, Rebecca (författare)
- Department of Physics, Duke University, NC, Durham, United States
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- Chambers, Ken (författare)
- Institute of Astronomy, University of Hawaii, HI, Honolulu, United States
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- Coulter, David A. (författare)
- Department of Astronomy and Astrophysics, University of California, CA, Santa Cruz, United States
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- Dai, Mi (författare)
- Department of Physics and Astronomy, Johns Hopkins University, MD, Baltimore, United States
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- Dimitriadis, Georgios (författare)
- School of Physics, Trinity College Dublin, The University of Dublin, Ireland
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- Filippenko, Alexei V. (författare)
- Department of Astronomy, University of California, CA, Berkeley, United States
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- Foley, Ryan J. (författare)
- Department of Astronomy and Astrophysics, University of California, CA, Santa Cruz, United States
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- Jha, Saurabh W. (författare)
- Department of Physics and Astronomy, Rutgers, The State University of New Jersey, NJ, Piscataway, United States
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- Kelsey, Lisa (författare)
- Institute of Cosmology and Gravitation, University of Portsmouth, Portsmouth, United Kingdom
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- Kirshner, Robert P. (författare)
- Center for Astrophysics, Harvard & Smithsonian, MA, Cambridge, United States; Gordon and Betty Moore Foundation, CA, Palo Alto, United States
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- Möller, Anais (författare)
- Centre for Astrophysics & Supercomputing, Swinburne University of Technology, VIC, Australia; LPC, Université Clermont Auvergne, CNRS, IN2P3, Clermont-Ferrand, France
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- Muir, Jessie (författare)
- Perimeter Institute for Theoretical Physics, ON, Waterloo, Canada
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- Nadathur, Seshadri (författare)
- Department of Physics & Astronomy, University College London, London, United Kingdom
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- Pan, Yen-Chen (författare)
- Graduate Institute of Astronomy, National Central University, Jhongli, Taiwan
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- Rest, Armin (författare)
- Space Telescope Science Institute, MD, Baltimore, United States
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- Rojas-Bravo, Cesar (författare)
- Department of Astronomy and Astrophysics, University of California, CA, Santa Cruz, United States
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- Sako, Masao (författare)
- Department of Physics and Astronomy, University of Pennsylvania, PA, Philadelphia, United States
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- Siebert, Matthew R. (författare)
- Department of Astronomy and Astrophysics, University of California, CA, Santa Cruz, United States
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- Smith, Mat (författare)
- Université de Lyon, Université Claude Bernard Lyon 1, CNRS, IN2P3, IP2I Lyon, Villeurbanne, France
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- Stahl, Benjamin E. (författare)
- Department of Astronomy, University of California, CA, Berkeley, United States
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- Wiseman, Phil (författare)
- School of Physics and Astronomy, University of Southampton, Southampton, United Kingdom
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(creator_code:org_t)
- 2022-10-19
- 2022
- Engelska.
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Ingår i: Astrophysical Journal. - : Institute of Physics (IOP). - 0004-637X .- 1538-4357. ; 938:2
- Relaterad länk:
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https://doi.org/10.3...
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https://umu.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.3...
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Abstract
Ämnesord
Stäng
- We present constraints on cosmological parameters from the Pantheon+ analysis of 1701 light curves of 1550 distinct Type Ia supernovae (SNe Ia) ranging in redshift from z = 0.001 to 2.26. This work features an increased sample size from the addition of multiple cross-calibrated photometric systems of SNe covering an increased redshift span, and improved treatments of systematic uncertainties in comparison to the original Pantheon analysis, which together result in a factor of 2 improvement in cosmological constraining power. For a flat ΛCDM model, we find ΩM = 0.334 ± 0.018 from SNe Ia alone. For a flat w0CDM model, we measure w0 = −0.90 ± 0.14 from SNe Ia alone, H0 = 73.5 ± 1.1 km s−1 Mpc−1 when including the Cepheid host distances and covariance (SH0ES), and w0 = -0.978-+0.0310.024 when combining the SN likelihood with Planck constraints from the cosmic microwave background (CMB) and baryon acoustic oscillations (BAO); both w0 values are consistent with a cosmological constant. We also present the most precise measurements to date on the evolution of dark energy in a flat w0waCDM universe, and measure wa = -0.1-+2.00.9 from Pantheon+ SNe Ia alone, H0 = 73.3 ± 1.1 km s−1 Mpc−1 when including SH0ES Cepheid distances, and wa = -0.65-+0.320.28 when combining Pantheon+ SNe Ia with CMB and BAO data. Finally, we find that systematic uncertainties in the use of SNe Ia along the distance ladder comprise less than one-third of the total uncertainty in the measurement of H0 and cannot explain the present “Hubble tension” between local measurements and early universe predictions from the cosmological model.
Ämnesord
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
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Brout, Dillon
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Scolnic, Dan
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Popovic, Brodie
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Riess, Adam G.
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Carr, Anthony
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Zuntz, Joe
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visa fler...
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Kessler, Rick
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Davis, Tamara M.
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Hinton, Samuel
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Jones, David
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D’Arcy Kenworthy ...
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Peterson, Erik R ...
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Said, Khaled
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Taylor, Georgie
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Ali, Noor
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Armstrong, Patri ...
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Charvu, Pranav
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Dwomoh, Arianna
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Meldorf, Cole
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Palmese, Antonel ...
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Qu, Helen
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Rose, Benjamin M ...
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Sanchez, Bruno
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Stubbs, Christop ...
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Vincenzi, Maria
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Wood, Charlotte ...
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Brown, Peter J.
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Chen, Rebecca
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Chambers, Ken
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Coulter, David A ...
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Dai, Mi
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Dimitriadis, Geo ...
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Filippenko, Alex ...
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Foley, Ryan J.
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Jha, Saurabh W.
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Kelsey, Lisa
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Kirshner, Robert ...
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Möller, Anais
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Muir, Jessie
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Nadathur, Seshad ...
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Pan, Yen-Chen
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Rest, Armin
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Rojas-Bravo, Ces ...
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Sako, Masao
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Siebert, Matthew ...
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Smith, Mat
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Stahl, Benjamin ...
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Wiseman, Phil
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