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Cosmological Constraints from Multiple Probes in the Dark Energy Survey

Author(s): Abbott, TMC; Alarcon, A; Allam, S; Andersen, P; Andrade-Oliveira, F; et al

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Abstract: The combination of multiple observational probes has long been advocated as a powerful technique to constrain cosmological parameters, in particular dark energy. The Dark Energy Survey has measured 207 spectroscopically confirmed type Ia supernova light curves, the baryon acoustic oscillation feature, weak gravitational lensing, and galaxy clustering. Here we present combined results from these probes, deriving constraints on the equation of state, w, of dark energy and its energy density in the Universe. Independently of other experiments, such as those that measure the cosmic microwave background, the probes from this single photometric survey rule out a Universe with no dark energy, finding w = -0.80(-0.11)(+0.09). The geometry is shown to be consistent with a spatially flat Universe, and we obtain a constraint on the baryon density of Omega(b) = 0.069(-0.012)(+0.009) that is independent of early Universe measurements. These results demonstrate the potential power of large multiprobe photometric surveys and pave the way for order of magnitude advances in our constraints on properties of dark energy and cosmology over the next decade.
Publication Date: 3-May-2019
Electronic Publication Date: 1-May-2019
Citation: Abbott, TMC, Alarcon, A, Allam, S, Andersen, P, Andrade-Oliveira, F, Annis, J, Asorey, J, Avila, S, Bacon, D, Banik, N, Bassett, BA, Baxter, E, Bechtol, K, Becker, MR, Bernstein, GM, Bertin, E, Blazek, J, Bridle, SL, Brooks, D, Brout, D, Burke, DL, Calcino, J, Camacho, H, Campos, A, Carnero Rosell, A, Carollo, D, Kind, M Carrasco, Carretero, J, Castander, FJ, Cawthon, R, Challis, P, Chan, KC, Chang, C, Childress, M, Crocce, M, Cunha, CE, D Andrea, CB, da Costa, LN, Davis, C, Davis, TM, De Vicente, J, Depoy, DL, DeRose, J, Desai, S, Diehl, HT, Dietrich, JP, Dodelson, S, Doel, P, Drlica-Wagner, A, Eifler, TF, Elvin-Poole, J, Estrada, J, Evrard, AE, Fernandez, E, Flaugher, B, Foley, RJ, Fosalba, P, Frieman, J, Galbany, L, Garcia-Bellido, J, Gatti, M, Gaztanaga, E, Gerdes, DW, Giannantonio, T, Glazebrook, K, Goldstein, DA, Gruen, D, Gruendl, RA, Gschwend, J, Gutierrez, G, Hartley, WG, Hinton, SR, Hollowood, DL, Honscheid, K, Hoormann, JK, Hoyle, B, Huterer, D, Jain, B, James, DJ, Jarvis, M, Jeltema, T, Kasai, E, Kent, S, Kessler, R, Kim, AG, Kokron, N, Krause, E, Kron, R, Kuehn, K, Kuropatkin, N, Lahav, O, Lasker, J, Lemos, P, Lewis, GF, Li, TS, Lidman, C, Lima, M, Lin, H, Macaulay, E, MacCrann, N, Maia, MAG, March, M, Marriner, J, Marshall, JL, Martini, P, McMahon, RG, Melchior, P, Menanteau, F, Miquel, R, Mohr, JJ, Morganson, E, Muir, J, Moeller, A, Neilsen, E, Nichol, RC, Nord, B, Ogando, RLC, Palmese, A, Pan, Y-C, Peiris, HV, Percival, WJ, Plazas, AA, Porredon, A, Prat, J, Romer, AK, Roodman, A, Rosenfeld, R, Ross, AJ, Rykoff, ES, Samuroff, S, Sanchez, C, Sanchez, E, Scarpine, V, Schindler, R, Schubnell, M, Scolnic, D, Secco, LF, Serrano, S, Sevilla-Noarbe, I, Sharp, R, Sheldon, E, Smith, M, Soares-Santos, M, Sobreira, F, Sommer, NE, Swann, E, Swanson, MEC, Tarle, G, Thomas, D, Thomas, RC, Troxel, MA, Tucker, BE, Uddin, SA, Vielzeuf, P, Walker, AR, Wang, M, Weaverdyck, N, Wechsler, RH, Weller, J, Yanny, B, Zhang, B, Zhang, Y, Zuntz, J, Collaboration, DES. (2019). Cosmological Constraints from Multiple Probes in the Dark Energy Survey. PHYSICAL REVIEW LETTERS, 122 (10.1103/PhysRevLett.122.171301
DOI: doi:10.1103/PhysRevLett.122.171301
ISSN: 0031-9007
EISSN: 1079-7114
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Type of Material: Journal Article
Journal/Proceeding Title: PHYSICAL REVIEW LETTERS
Version: Final published version. Article is made available in OAR by the publisher's permission or policy.

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