Cosmological Constraints from Multiple Probes in the Dark Energy Survey

Journal Article · 01 May 2019 · Physical Review Letters

DOI: https://doi.org/10.1103/PhysRevLett.122.171301 · OSTI ID:1487399

Abbott, T. M. C.; Alarcon, A.; Allam, S.; Andersen, P.; Andrade-Oliveira, F.; Annis, J.; Asorey, J.; Avila, S.; Bacon, D.; Banik, N.; Bassett, B. A.; Baxter, E.; Bechtol, K.; Becker, M. R.; Bernstein, G. M.; Bertin, E.; Blazek, J.; Bridle, S. L.; Brooks, D.; Brout, D. ; Burke, D. L.; Calcino, J.; Camacho, H.; Campos, A.; Carnero Rosell, A.; Carollo, D.; Carrasco Kind, M.; Carretero, J.; Castander, F. J.; Cawthon, R.; Challis, P.; Chan, K. C.; Chang, C.; Childress, M.; Crocce, M.; Cunha, C. E.; D’Andrea, C. B.; da Costa, L. N.; Davis, C.; Davis, T. M.; De Vicente, J.; DePoy, D. L.; DeRose, J.; Desai, S.; Diehl, H. T.; Dietrich, J. P.; Dodelson, S.; Doel, P.; Drlica-Wagner, A.; Eifler, T. F.; Elvin-Poole, J.; Estrada, J.; Evrard, A. E.; Fernandez, E.; Flaugher, B.; Foley, R. J.; Fosalba, P.; Frieman, J.; Galbany, L.; García-Bellido, J.; Gatti, M.; Gaztanaga, E.; Gerdes, D. W.; Giannantonio, T.; Glazebrook, K.; Goldstein, D. A.; Gruen, D.; Gruendl, R. A.; Gschwend, J.; Gutierrez, G.; Hartley, W. G.; Hinton, S. R.; Hollowood, D. L.; Honscheid, K.; Hoormann, J. K.; Hoyle, B.; Huterer, D.; Jain, B.; James, D. J.; Jarvis, M.; Jeltema, T.; Kasai, E.; Kent, S.; Kessler, R.; Kim, A. G.; Kokron, N.; Krause, E.; Kron, R.; Kuehn, K.; Kuropatkin, N.; Lahav, O.; Lasker, J.; Lemos, P.; Lewis, G. F.; Li, T. S.; Lidman, C.; Lima, M.; Lin, H.; Macaulay, E.; MacCrann, N.; Maia, M. A. G.; March, M.; Marriner, J.; Marshall, J. L.; Martini, P.; McMahon, R. G.; Melchior, P.; Menanteau, F.; Miquel, R.; Mohr, J. J.; Morganson, E.; Muir, J.; Möller, A.; Neilsen, E.; Nichol, R. C.; Nord, B.; Ogando, R. L. C.; Palmese, A.; Pan, Y. -C.; Peiris, H. V.; Percival, W. J.; Plazas, A. A.; Porredon, A.; Prat, J.; Romer, A. K.; Roodman, A.; Rosenfeld, R.; Ross, A. J.; Rykoff, E. S.; Samuroff, S.; Sánchez, C.; Sanchez, E.; Scarpine, V.; Schindler, R.; Schubnell, M.; Scolnic, D.; Secco, L. F.; Serrano, S.; Sevilla-Noarbe, I.; Sharp, R.; Sheldon, E.; Smith, M.; Soares-Santos, M.; Sobreira, F.; Sommer, N. E.; Swann, E.; Swanson, M. E. C.; Tarle, G.; Thomas, D.; Thomas, R. C.; Troxel, M. A.; Tucker, B. E.; Uddin, S. A.; Vielzeuf, P.; Walker, A. R.; Wang, M.; Weaverdyck, N.; Wechsler, R. H.; Weller, J.; Yanny, B.; Zhang, B.; Zhang, Y.; Zuntz, J.

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^+0.09_-0.11. 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^+0.009_-0.012 that is independent of early Universe measurements. Furthermore 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.

• Research Organization: Brookhaven National Laboratory (BNL), Upton, NY (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Carnegie Mellon Univ., Pittsburgh, PA (United States); The Ohio State Univ., Columbus, OH (United States); Univ. of Michigan, Ann Arbor, MI (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP); USDOE
• Contributing Organization: DES Collaboration
• Grant/Contract Number: AC02-07CH11359; SC0010118; AC02-05CH11231; SC0011726; SC0007859; SC0019193
• OSTI ID: 1487399
• Alternate ID(s): OSTI ID: 1510140; OSTI ID: 1550891; OSTI ID: 1602527; OSTI ID: 1643943; OSTI ID: 1755508; OSTI ID: 1781333
• Report Number(s): arXiv:1811.02375; FERMILAB-PUB-18-585-AE; PRLTAO; 1702363
• Journal Information: Physical Review Letters, Vol. 122, Issue 17; ISSN 0031-9007
• Publisher: American Physical Society (APS)Copyright Statement
• Country of Publication: United States
• Language: English