First Cosmology Results using Type Ia Supernovae from the Dark Energy Survey: Constraints on Cosmological Parameters

T. M.C. Abbott; S. Allam; P. Andersen; C. Angus; J. Asorey; A. Avelino; S. Avila; B. A. Bassett; K. Bechtol; G. M. Bernstein; E. Bertin; D. Brooks; D. Brout; P. Brown; D. L. Burke; J. Calcino; A. Carnero Rosell; D. Carollo; M. Carrasco Kind; J. Carretero; R. Casas; F. J. Castander; R. Cawthon; P. Challis; M. Childress; A. Clocchiatti; C. E. Cunha; C. B. D'Andrea; L. N. Da Costa; C. Davis; T. M. Davis; J. De Vicente; D. L. Depoy; S. Desai; H. T. Diehl; P. Doel; A. Drlica-Wagner; T. F. Eifler; A. E. Evrard; E. Fernandez; A. V. Filippenko; D. A. Finley; B. Flaugher; R. J. Foley; P. Fosalba; J. Frieman; L. Galbany; J. García-Bellido; E. Gaztanaga; T. Giannantonio; K. Glazebrook; D. A. Goldstein; S. González-Gaitán; D. Gruen; R. A. Gruendl; J. Gschwend; R. R. Gupta; G. Gutierrez; W. G. Hartley; S. R. Hinton; D. L. Hollowood; K. Honscheid; J. K. Hoormann; B. Hoyle; D. J. James; T. Jeltema; M. W.G. Johnson; M. D. Johnson; E. Kasai; S. Kent; R. Kessler; A. G. Kim; R. P. Kirshner; E. Kovacs; E. Krause; R. Kron; K. Kuehn; S. Kuhlmann; N. Kuropatkin; O. Lahav; J. Lasker; G. F. Lewis; T. S. Li; C. Lidman; M. Lima; H. Lin; E. Macaulay; M. A.G. Maia; K. S. Mandel; M. March; J. Marriner; J. L. Marshall; P. Martini; F. Menanteau; C. J. Miller; R. Miquel; V. Miranda; J. J. Mohr; E. Morganson; D. Muthukrishna; A. Möller; E. Neilsen; R. C. Nichol; B. Nord; P. Nugent; R. L.C. Ogando; A. Palmese; Y. C. Pan; A. A. Plazas; M. Pursiainen; A. K. Romer; A. Roodman; E. Rozo; E. S. Rykoff; M. Sako; E. Sanchez; V. Scarpine; R. Schindler; M. Schubnell; D. Scolnic; S. Serrano; I. Sevilla-Noarbe; R. Sharp; M. Smith; M. Soares-Santos; F. Sobreira; N. E. Sommer; H. Spinka; E. Suchyta; M. Sullivan; E. Swann; G. Tarle; D. Thomas; R. C. Thomas; M. A. Troxel; B. E. Tucker; S. A. Uddin; A. R. Walker; W. Wester; P. Wiseman; R. C. Wolf; B. Yanny; B. Zhang; Y. Zhang

doi:10.3847/2041-8213/ab04fa

First Cosmology Results using Type Ia Supernovae from the Dark Energy Survey: Constraints on Cosmological Parameters

T. M.C. Abbott, S. Allam, P. Andersen, C. Angus, J. Asorey, A. Avelino, S. Avila, B. A. Bassett, K. Bechtol, G. M. Bernstein, E. Bertin, D. Brooks, D. Brout, P. Brown, D. L. Burke, J. Calcino, A. Carnero Rosell, D. Carollo, M. Carrasco Kind, J. CarreteroR. Casas, F. J. Castander, R. Cawthon, P. Challis, M. Childress, A. Clocchiatti, C. E. Cunha, C. B. D'Andrea, L. N. Da Costa, C. Davis, T. M. Davis, J. De Vicente, D. L. Depoy, S. Desai, H. T. Diehl, P. Doel, A. Drlica-Wagner, T. F. Eifler, A. E. Evrard, E. Fernandez, A. V. Filippenko, D. A. Finley, B. Flaugher, R. J. Foley, P. Fosalba, J. Frieman, L. Galbany, J. García-Bellido, E. Gaztanaga, T. Giannantonio, K. Glazebrook, D. A. Goldstein, S. González-Gaitán, D. Gruen, R. A. Gruendl, J. Gschwend, R. R. Gupta, G. Gutierrez, W. G. Hartley, S. R. Hinton, D. L. Hollowood, K. Honscheid, J. K. Hoormann, B. Hoyle, D. J. James, T. Jeltema, M. W.G. Johnson, M. D. Johnson, E. Kasai, S. Kent, R. Kessler, A. G. Kim, R. P. Kirshner, E. Kovacs, E. Krause, R. Kron, K. Kuehn, S. Kuhlmann, N. Kuropatkin, O. Lahav, J. Lasker, G. F. Lewis, T. S. Li, C. Lidman, M. Lima, H. Lin, E. Macaulay, M. A.G. Maia, K. S. Mandel, M. March, J. Marriner, J. L. Marshall, P. Martini, F. Menanteau, C. J. Miller, R. Miquel, V. Miranda, J. J. Mohr, E. Morganson, D. Muthukrishna, A. Möller, E. Neilsen, R. C. Nichol, B. Nord, P. Nugent, R. L.C. Ogando, A. Palmese, Y. C. Pan, A. A. Plazas, M. Pursiainen, A. K. Romer, A. Roodman, E. Rozo, E. S. Rykoff, M. Sako, E. Sanchez, V. Scarpine, R. Schindler, M. Schubnell, D. Scolnic, S. Serrano, I. Sevilla-Noarbe, R. Sharp, M. Smith, M. Soares-Santos, F. Sobreira, N. E. Sommer, H. Spinka, E. Suchyta, M. Sullivan, E. Swann, G. Tarle, D. Thomas, R. C. Thomas, M. A. Troxel, B. E. Tucker, S. A. Uddin, A. R. Walker, W. Wester, P. Wiseman, R. C. Wolf, B. Yanny, B. Zhang, Y. Zhang

Research output: Contribution to journal › Article

33 Scopus citations

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	https://doi.org/10.3847/2041-8213/ab04fa
State	Published - 2019

Keywords

dark energy
dark matter

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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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. C., Carollo, D., Carrasco Kind, M., ... Zhang, Y. (2019). First Cosmology Results using Type Ia Supernovae from the Dark Energy Survey: Constraints on Cosmological Parameters. Astrophysical Journal Letters, 872(2), [L30]. https://doi.org/10.3847/2041-8213/ab04fa

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

Abbott, TMC, Allam, S, Andersen, P, Angus, C, Asorey, J, Avelino, A, Avila, S, Bassett, BA, Bechtol, K, Bernstein, GM, Bertin, E, Brooks, D, Brout, D, Brown, P, Burke, DL, Calcino, J, Rosell, AC, Carollo, D, Carrasco Kind, M, Carretero, J, Casas, R, Castander, FJ, Cawthon, R, Challis, P, Childress, M, Clocchiatti, A, Cunha, CE, D'Andrea, CB, Da Costa, LN, Davis, C, Davis, TM, De Vicente, J, Depoy, DL, Desai, S, Diehl, HT, Doel, P, Drlica-Wagner, A, Eifler, TF, Evrard, AE, Fernandez, E, Filippenko, AV, Finley, DA, Flaugher, B, Foley, RJ, Fosalba, P, Frieman, J, Galbany, L, García-Bellido, J, Gaztanaga, E, Giannantonio, T, Glazebrook, K, Goldstein, DA, González-Gaitán, S, Gruen, D, Gruendl, RA, Gschwend, J, Gupta, RR, Gutierrez, G, Hartley, WG, Hinton, SR, Hollowood, DL, Honscheid, K, Hoormann, JK, Hoyle, B, James, DJ, Jeltema, T, Johnson, MWG, Johnson, MD, Kasai, E, Kent, S, Kessler, R, Kim, AG, Kirshner, RP, Kovacs, E, Krause, E, Kron, R, Kuehn, K, Kuhlmann, S, Kuropatkin, N, Lahav, O, Lasker, J, Lewis, GF, Li, TS, Lidman, C, Lima, M, Lin, H, Macaulay, E, Maia, MAG, Mandel, KS, March, M, Marriner, J, Marshall, JL, Martini, P, Menanteau, F, Miller, CJ, Miquel, R, Miranda, V, Mohr, JJ, Morganson, E, Muthukrishna, D, Möller, A, Neilsen, E, Nichol, RC, Nord, B, Nugent, P, Ogando, RLC, Palmese, A, Pan, YC, Plazas, AA, Pursiainen, M, Romer, AK, Roodman, A, Rozo, E, Rykoff, ES, 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, NE, Spinka, H, Suchyta, E, Sullivan, M, Swann, E, Tarle, G, Thomas, D, Thomas, RC, Troxel, MA, Tucker, BE, Uddin, SA, Walker, AR, Wester, W, Wiseman, P, Wolf, RC, Yanny, B, Zhang, B & Zhang, Y 2019, 'First Cosmology Results using Type Ia Supernovae from the Dark Energy Survey: Constraints on Cosmological Parameters', Astrophysical Journal Letters, vol. 872, no. 2, L30. https://doi.org/10.3847/2041-8213/ab04fa

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. / First Cosmology Results using Type Ia Supernovae from the Dark Energy Survey : Constraints on Cosmological Parameters. In: Astrophysical Journal Letters. 2019 ; Vol. 872, No. 2.

@article{2092446921ab4e2593c806b267c9a7c9,

title = "First Cosmology Results using Type Ia Supernovae from the Dark Energy Survey: Constraints on Cosmological Parameters",

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). ",

keywords = "dark energy, dark matter",

author = "Abbott, {T. M.C.} and S. Allam and P. Andersen and C. Angus and J. Asorey and A. Avelino and S. Avila and Bassett, {B. A.} and K. Bechtol and Bernstein, {G. M.} and E. Bertin and D. Brooks and D. Brout and P. Brown and Burke, {D. L.} and J. Calcino and Rosell, {A. Carnero} and D. Carollo and {Carrasco Kind}, M. and J. Carretero and R. Casas and Castander, {F. J.} and R. Cawthon and P. Challis and M. Childress and A. Clocchiatti and Cunha, {C. E.} and D'Andrea, {C. B.} and {Da Costa}, {L. N.} and C. Davis and Davis, {T. M.} and {De Vicente}, J. and Depoy, {D. L.} and S. Desai and Diehl, {H. T.} and P. Doel and A. Drlica-Wagner and Eifler, {T. F.} and Evrard, {A. E.} and E. Fernandez and Filippenko, {A. V.} and Finley, {D. A.} and B. Flaugher and Foley, {R. J.} and P. Fosalba and J. Frieman and L. Galbany and J. Garc{\'i}a-Bellido and E. Gaztanaga and T. Giannantonio and K. Glazebrook and Goldstein, {D. A.} and S. Gonz{\'a}lez-Gait{\'a}n and D. Gruen and Gruendl, {R. A.} and J. Gschwend and Gupta, {R. R.} and G. Gutierrez and Hartley, {W. G.} and Hinton, {S. R.} and Hollowood, {D. L.} and K. Honscheid and Hoormann, {J. K.} and B. Hoyle and James, {D. J.} and T. Jeltema and Johnson, {M. W.G.} and Johnson, {M. D.} and E. Kasai and S. Kent and R. Kessler and Kim, {A. G.} and Kirshner, {R. P.} and E. Kovacs and E. Krause and R. Kron and K. Kuehn and S. Kuhlmann and N. Kuropatkin and O. Lahav and J. Lasker and Lewis, {G. F.} and Li, {T. S.} and C. Lidman and M. Lima and H. Lin and E. Macaulay and Maia, {M. A.G.} and Mandel, {K. S.} and M. March and J. Marriner and Marshall, {J. L.} and P. Martini and F. Menanteau and Miller, {C. J.} and R. Miquel and V. Miranda and Mohr, {J. J.} and E. Morganson and D. Muthukrishna and A. M{\"o}ller and E. Neilsen and Nichol, {R. C.} and B. Nord and P. Nugent and Ogando, {R. L.C.} and A. Palmese and Pan, {Y. C.} and Plazas, {A. A.} and M. Pursiainen and Romer, {A. K.} and A. Roodman and E. Rozo and Rykoff, {E. S.} and M. Sako and E. Sanchez and V. Scarpine and R. Schindler and M. Schubnell and D. Scolnic and S. Serrano and I. Sevilla-Noarbe and R. Sharp and M. Smith and M. Soares-Santos and F. Sobreira and Sommer, {N. E.} and H. Spinka and E. Suchyta and M. Sullivan and E. Swann and G. Tarle and D. Thomas and Thomas, {R. C.} and Troxel, {M. A.} and Tucker, {B. E.} and Uddin, {S. A.} and Walker, {A. R.} and W. Wester and P. Wiseman and Wolf, {R. C.} and B. Yanny and B. Zhang and Y. Zhang",

year = "2019",

doi = "10.3847/2041-8213/ab04fa",

language = "English (US)",

volume = "872",

journal = "Astrophysical Journal Letters",

issn = "2041-8205",

publisher = "IOP Publishing Ltd.",

number = "2",

}

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.

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 -