Abstract
We present the first cosmological parameter constraints using measurements of type Ia supernovae (SNe Ia) from the Dark Energy Survey Supernova Program (DES-SN). The analysis uses a subsample of 207 spectroscopically confirmed SNe Ia from the first three years of DES-SN, combined with a low-redshift sample of 122 SNe from the literature. Our "DES-SN3YR" result from these 329 SNe Ia is based on a series of companion analyses and improvements covering SN Ia discovery, spectroscopic selection, photometry, calibration, distance bias corrections, and evaluation of systematic uncertainties. For a flat ΛCDM model we find a matter density Ω m = 0.331 ± 0.038. For a flat wCDM model, and combining our SN Ia constraints with those from the cosmic microwave background (CMB), we find a dark energy equation of state w = -0.978 ± 0.059, and ω m = 0.321 ± 0.018. For a flat w 0 w a CDM model, and combining probes from SN Ia, CMB and baryon acoustic oscillations, we find w0 = -0.885 ± 0.114 and w a = -0.387 ± 0.430. These results are in agreement with a cosmological constant and with previous constraints using SNe Ia (Pantheon, JLA).
Original language | English (US) |
---|---|
Article number | L30 |
Journal | Astrophysical Journal Letters |
Volume | 872 |
Issue number | 2 |
DOIs | |
State | Published - 2019 |
Keywords
- dark energy
- dark matter
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science
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First Cosmology Results using Type Ia Supernovae from the Dark Energy Survey : Constraints on Cosmological Parameters. / Abbott, T. M.C.; Allam, S.; Andersen, P.; Angus, C.; Asorey, J.; Avelino, A.; Avila, S.; Bassett, B. A.; Bechtol, K.; Bernstein, G. M.; Bertin, E.; Brooks, D.; Brout, D.; Brown, P.; Burke, D. L.; Calcino, J.; Rosell, A. Carnero; Carollo, D.; Carrasco Kind, M.; Carretero, J.; Casas, R.; Castander, F. J.; Cawthon, R.; Challis, P.; Childress, M.; Clocchiatti, A.; Cunha, C. E.; D'Andrea, C. B.; Da Costa, L. N.; Davis, C.; Davis, T. M.; De Vicente, J.; Depoy, D. L.; Desai, S.; Diehl, H. T.; Doel, P.; Drlica-Wagner, A.; Eifler, T. F.; Evrard, A. E.; Fernandez, E.; Filippenko, A. V.; Finley, D. A.; Flaugher, B.; Foley, R. J.; Fosalba, P.; Frieman, J.; Galbany, L.; García-Bellido, J.; Gaztanaga, E.; Giannantonio, T.; Glazebrook, K.; Goldstein, D. A.; González-Gaitán, S.; Gruen, D.; Gruendl, R. A.; Gschwend, J.; Gupta, R. R.; Gutierrez, G.; Hartley, W. G.; Hinton, S. R.; Hollowood, D. L.; Honscheid, K.; Hoormann, J. K.; Hoyle, B.; James, D. J.; Jeltema, T.; Johnson, M. W.G.; Johnson, M. D.; Kasai, E.; Kent, S.; Kessler, R.; Kim, A. G.; Kirshner, R. P.; Kovacs, E.; Krause, E.; Kron, R.; Kuehn, K.; Kuhlmann, S.; Kuropatkin, N.; Lahav, O.; Lasker, J.; Lewis, G. F.; Li, T. S.; Lidman, C.; Lima, M.; Lin, H.; Macaulay, E.; Maia, M. A.G.; Mandel, K. S.; March, M.; Marriner, J.; Marshall, J. L.; Martini, P.; Menanteau, F.; Miller, C. J.; Miquel, R.; Miranda, V.; Mohr, J. J.; Morganson, E.; Muthukrishna, D.; Möller, A.; Neilsen, E.; Nichol, R. C.; Nord, B.; Nugent, P.; Ogando, R. L.C.; Palmese, A.; Pan, Y. C.; Plazas, A. A.; Pursiainen, M.; Romer, A. K.; Roodman, A.; Rozo, E.; Rykoff, E. S.; Sako, M.; Sanchez, E.; Scarpine, V.; Schindler, R.; Schubnell, M.; Scolnic, D.; Serrano, S.; Sevilla-Noarbe, I.; Sharp, R.; Smith, M.; Soares-Santos, M.; Sobreira, F.; Sommer, N. E.; Spinka, H.; Suchyta, E.; Sullivan, M.; Swann, E.; Tarle, G.; Thomas, D.; Thomas, R. C.; Troxel, M. A.; Tucker, B. E.; Uddin, S. A.; Walker, A. R.; Wester, W.; Wiseman, P.; Wolf, R. C.; Yanny, B.; Zhang, B.; Zhang, Y.
In: Astrophysical Journal Letters, Vol. 872, No. 2, L30, 2019.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - First Cosmology Results using Type Ia Supernovae from the Dark Energy Survey
T2 - Constraints on Cosmological Parameters
AU - Abbott, T. M.C.
AU - Allam, S.
AU - Andersen, P.
AU - Angus, C.
AU - Asorey, J.
AU - Avelino, A.
AU - Avila, S.
AU - Bassett, B. A.
AU - Bechtol, K.
AU - Bernstein, G. M.
AU - Bertin, E.
AU - Brooks, D.
AU - Brout, D.
AU - Brown, P.
AU - Burke, D. L.
AU - Calcino, J.
AU - Rosell, A. Carnero
AU - Carollo, D.
AU - Carrasco Kind, M.
AU - Carretero, J.
AU - Casas, R.
AU - Castander, F. J.
AU - Cawthon, R.
AU - Challis, P.
AU - Childress, M.
AU - Clocchiatti, A.
AU - Cunha, C. E.
AU - D'Andrea, C. B.
AU - Da Costa, L. N.
AU - Davis, C.
AU - Davis, T. M.
AU - De Vicente, J.
AU - Depoy, D. L.
AU - Desai, S.
AU - Diehl, H. T.
AU - Doel, P.
AU - Drlica-Wagner, A.
AU - Eifler, T. F.
AU - Evrard, A. E.
AU - Fernandez, E.
AU - Filippenko, A. V.
AU - Finley, D. A.
AU - Flaugher, B.
AU - Foley, R. J.
AU - Fosalba, P.
AU - Frieman, J.
AU - Galbany, L.
AU - García-Bellido, J.
AU - Gaztanaga, E.
AU - Giannantonio, T.
AU - Glazebrook, K.
AU - Goldstein, D. A.
AU - González-Gaitán, S.
AU - Gruen, D.
AU - Gruendl, R. A.
AU - Gschwend, J.
AU - Gupta, R. R.
AU - Gutierrez, G.
AU - Hartley, W. G.
AU - Hinton, S. R.
AU - Hollowood, D. L.
AU - Honscheid, K.
AU - Hoormann, J. K.
AU - Hoyle, B.
AU - James, D. J.
AU - Jeltema, T.
AU - Johnson, M. W.G.
AU - Johnson, M. D.
AU - Kasai, E.
AU - Kent, S.
AU - Kessler, R.
AU - Kim, A. G.
AU - Kirshner, R. P.
AU - Kovacs, E.
AU - Krause, E.
AU - Kron, R.
AU - Kuehn, K.
AU - Kuhlmann, S.
AU - Kuropatkin, N.
AU - Lahav, O.
AU - Lasker, J.
AU - Lewis, G. F.
AU - Li, T. S.
AU - Lidman, C.
AU - Lima, M.
AU - Lin, H.
AU - Macaulay, E.
AU - Maia, M. A.G.
AU - Mandel, K. S.
AU - March, M.
AU - Marriner, J.
AU - Marshall, J. L.
AU - Martini, P.
AU - Menanteau, F.
AU - Miller, C. J.
AU - Miquel, R.
AU - Miranda, V.
AU - Mohr, J. J.
AU - Morganson, E.
AU - Muthukrishna, D.
AU - Möller, A.
AU - Neilsen, E.
AU - Nichol, R. C.
AU - Nord, B.
AU - Nugent, P.
AU - Ogando, R. L.C.
AU - Palmese, A.
AU - Pan, Y. C.
AU - Plazas, A. A.
AU - Pursiainen, M.
AU - Romer, A. K.
AU - Roodman, A.
AU - Rozo, E.
AU - Rykoff, E. S.
AU - Sako, M.
AU - Sanchez, E.
AU - Scarpine, V.
AU - Schindler, R.
AU - Schubnell, M.
AU - Scolnic, D.
AU - Serrano, S.
AU - Sevilla-Noarbe, I.
AU - Sharp, R.
AU - Smith, M.
AU - Soares-Santos, M.
AU - Sobreira, F.
AU - Sommer, N. E.
AU - Spinka, H.
AU - Suchyta, E.
AU - Sullivan, M.
AU - Swann, E.
AU - Tarle, G.
AU - Thomas, D.
AU - Thomas, R. C.
AU - Troxel, M. A.
AU - Tucker, B. E.
AU - Uddin, S. A.
AU - Walker, A. R.
AU - Wester, W.
AU - Wiseman, P.
AU - Wolf, R. C.
AU - Yanny, B.
AU - Zhang, B.
AU - Zhang, Y.
N1 - Funding Information: Funding for the DES Projects has been provided by the U.S. Department of Energy, the U.S. National Science Foundation, the Ministry of Science and Education of Spain, the Science and Technology Facilities Council of the United Kingdom, the Higher Education Funding Council for England, the National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign, the Kavli Institute of Cosmological Physics at the University of Chicago, the Center for Cosmology and Astro-Particle Physics at the Ohio State University, the Mitchell Institute for Fundamental Physics and Astronomy at Texas A&M University, Financiadora de Estudos e Projetos, Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro, Conselho Nacional de Desenvolvimento Científico e Tecnológico and the Ministério da Ciência, Tecnologia e Inovação, the Deutsche Forschungs-gemeinschaft, and the Collaborating Institutions in the Dark Energy Survey. Funding Information: The DES data management system is supported by the National Science Foundation under grant No. AST-1138766 and AST-1536171. The DES participants from Spanish institutions are partially supported by MINECO under grants AYA2015-71825, ESP2015-66861, FPA2015-68048, SEV-2016-0588, SEV-2016-0597, and MDM-2015-0509, some of which include ERDF funds from the European Union. IFAE is partially funded by the CERCA program of the Generalitat de Catalunya. Research leading to these results has received funding from the European Research Council under the European Union’s Seventh Framework Program (FP7/2007-2013) including ERC grant agreements 240672, 291329, 306478, and 615929. We acknowledge support from the Australian Research Council Centre of Excellence for All-sky Astrophysics (CAASTRO), through project No. CE110001020, and the Brazilian Instituto Nacional de Ciênciae Tecnologia (INCT) e-Universe (CNPq grant 465376/2014-2). Funding Information: This manuscript has been authored by Fermi Research Alliance, LLC under contract No. DE-AC02-07CH11359 with the U.S. Department of Energy, Office of Science, Office of High Energy Physics.
PY - 2019
Y1 - 2019
N2 - We present the first cosmological parameter constraints using measurements of type Ia supernovae (SNe Ia) from the Dark Energy Survey Supernova Program (DES-SN). The analysis uses a subsample of 207 spectroscopically confirmed SNe Ia from the first three years of DES-SN, combined with a low-redshift sample of 122 SNe from the literature. Our "DES-SN3YR" result from these 329 SNe Ia is based on a series of companion analyses and improvements covering SN Ia discovery, spectroscopic selection, photometry, calibration, distance bias corrections, and evaluation of systematic uncertainties. For a flat ΛCDM model we find a matter density Ω m = 0.331 ± 0.038. For a flat wCDM model, and combining our SN Ia constraints with those from the cosmic microwave background (CMB), we find a dark energy equation of state w = -0.978 ± 0.059, and ω m = 0.321 ± 0.018. For a flat w 0 w a CDM model, and combining probes from SN Ia, CMB and baryon acoustic oscillations, we find w0 = -0.885 ± 0.114 and w a = -0.387 ± 0.430. These results are in agreement with a cosmological constant and with previous constraints using SNe Ia (Pantheon, JLA).
AB - We present the first cosmological parameter constraints using measurements of type Ia supernovae (SNe Ia) from the Dark Energy Survey Supernova Program (DES-SN). The analysis uses a subsample of 207 spectroscopically confirmed SNe Ia from the first three years of DES-SN, combined with a low-redshift sample of 122 SNe from the literature. Our "DES-SN3YR" result from these 329 SNe Ia is based on a series of companion analyses and improvements covering SN Ia discovery, spectroscopic selection, photometry, calibration, distance bias corrections, and evaluation of systematic uncertainties. For a flat ΛCDM model we find a matter density Ω m = 0.331 ± 0.038. For a flat wCDM model, and combining our SN Ia constraints with those from the cosmic microwave background (CMB), we find a dark energy equation of state w = -0.978 ± 0.059, and ω m = 0.321 ± 0.018. For a flat w 0 w a CDM model, and combining probes from SN Ia, CMB and baryon acoustic oscillations, we find w0 = -0.885 ± 0.114 and w a = -0.387 ± 0.430. These results are in agreement with a cosmological constant and with previous constraints using SNe Ia (Pantheon, JLA).
KW - dark energy
KW - dark matter
UR - http://www.scopus.com/inward/record.url?scp=85063541330&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85063541330&partnerID=8YFLogxK
U2 - 10.3847/2041-8213/ab04fa
DO - 10.3847/2041-8213/ab04fa
M3 - Article
AN - SCOPUS:85063541330
VL - 872
JO - Astrophysical Journal Letters
JF - Astrophysical Journal Letters
SN - 2041-8205
IS - 2
M1 - L30
ER -