1. Cosmology from large scale galaxy clustering and galaxy-galaxy lensing with Dark Energy Survey Science Verification data
- Author
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Kwan, Juliana, Sanchez, Carles, Clampitt, Joseph, Blazek, Jonathan, Crocce, Martin, Jain, Bhuvnesh, Zuntz, Joe, Amara, Adam, Becker, Matthew, Bernstein, Gary, Bonnett, Christopher, DeRose, Joseph, Dodelson, Scott, Eifler, Tim, Gaztanaga, Enrique, Giannantonio, Tommaso, Gruen, Daniel, Hartley, Will, Kacprzak, Tomasz, Kirk, Donnacha, Krause, Elisabeth, MacCrann, Niall, Miquel, Ramon, Park, Youngsoo, Ross, Ashley, Rozo, Eduardo, Rykoff, Eli, Sheldon, Erin, Troxel, Michael A., Wechsler, Risa, Abbott, Tim, Abdalla, Filipe, Allam, Sahar, Benoit-Lévy, Aurélien, Brooks, David, Burke, David, Rosell, Aurelio Carnero, Kind, Matias Carrasco, Cunha, Carlos, D'Andrea, Chris, da Costa, Luiz, Desai, Shantanu, Diehl, H. Thomas, Dietrich, Jörg, Doel, Peter, Evrard, August, Fernandez, Enrique, Finley, David, Flaugher, Brenna, Fosalba, Pablo, Frieman, Josh, Gerdes, David, Gruendl, Robert, Gutierrez, Gaston, Honscheid, Klaus, James, David, Jarvis, Mike, Kuehn, Kyler, Lahav, Ofer, Lima, Marcos, Maia, Marcio, Marshall, Jennifer, Martini, Paul, Melchior, Peter, Mohr, Joe, Nichol, Robert, Nord, Brian, Plazas, Andres, Reil, Kevin, Romer, Kathy, Roodman, Aaron, Sanchez, Eusebio, Scarpine, Vic, Sevilla, Ignacio, Smith, R. Chris, Soares-Santos, Marcelle, Sobreira, Flavia, Suchyta, Eric, Swanson, Molly, Tarle, Gregory, Thomas, Daniel, Vikram, Vinu, and Walker, Alistair
- Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics - Abstract
We present cosmological constraints from the Dark Energy Survey (DES) using a combined analysis of angular clustering of red galaxies and their cross-correlation with weak gravitational lensing of background galaxies. We use a 139 square degree contiguous patch of DES data from the Science Verification (SV) period of observations. Using large scale measurements, we constrain the matter density of the Universe as Omega_m = 0.31 +/- 0.09 and the clustering amplitude of the matter power spectrum as sigma_8 = 0.74 +/- 0.13 after marginalizing over seven nuisance parameters and three additional cosmological parameters. This translates into S_8 = sigma_8(Omega_m/0.3)^{0.16} = 0.74 +/- 0.12 for our fiducial lens redshift bin at 0.35
- Published
- 2016
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