Cosmological Constraints from Multiple Probes in the Dark Energy Survey.

Published

Journal Article

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 Ω_{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.

Full Text

Duke Authors

Cited Authors

  • 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; Carrasco Kind, M; 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; García-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; Möller, 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; Sánchez, 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; DES Collaboration,

Published Date

  • May 2019

Published In

Volume / Issue

  • 122 / 17

Start / End Page

  • 171301 -

PubMed ID

  • 31107093

Pubmed Central ID

  • 31107093

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/physrevlett.122.171301

Language

  • eng