Dark Energy Survey Year 1 Results: Tomographic cross-correlations between Dark Energy Survey galaxies and CMB lensing from South Pole $\mathrm{Telescope}+\mathrm{Planck}$

Journal Article · 01 August 2019 · Physical Review D

DOI: https://doi.org/10.1103/PhysRevD.100.043501 · OSTI ID:1560423

Omori, Y.; Giannantonio, T.; Porredon, A.; Baxter, E. J.; Chang, C.; Crocce, M.; Fosalba, P.; Alarcon, A.; Banik, N.; Blazek, J.; Bleem, L. E.; Bridle, S. L.; Cawthon, R.; Choi, A.; Chown, R.; Crawford, T.; Dodelson, S.; Drlica-Wagner, A.; Eifler, T. F.; Elvin-Poole, J. ; Friedrich, O.; Gruen, D.; Holder, G. P.; Huterer, D.; Jain, B.; Jarvis, M.; Kirk, D.; Kokron, N.; Krause, E.; MacCrann, N.; Muir, J.; Prat, J.; Reichardt, C. L.; Ross, A. J.; Rozo, E.; Rykoff, E. S.; Sánchez, C.; Secco, L. F.; Simard, G.; Wechsler, R. H.; Zuntz, J.; Abbott, T. M. C.; Abdalla, F. B.; Allam, S.; Avila, S.; Aylor, K.; Benson, B. A.; Bernstein, G. M.; Bertin, E.; Bianchini, F.; Brooks, D.; Buckley-Geer, E.; Burke, D. L.; Carlstrom, J. E.; Carnero Rosell, A.; Carrasco Kind, M.; Carretero, J.; Castander, F. J.; Chang, C. L.; Cho, H-M.; Crites, A. T.; Cunha, C. E.; da Costa, L. N.; de Haan, T.; Davis, C.; De Vicente, J.; Desai, S.; Diehl, H. T.; Dietrich, J. P.; Dobbs, M. A.; Everett, W. B.; Doel, P.; Estrada, J.; Flaugher, B.; Frieman, J.; García-Bellido, J.; Gaztanaga, E.; Gerdes, D. W.; George, E. M.; Gruendl, R. A.; Gschwend, J.; Gutierrez, G.; Halverson, N. W.; Harrington, N. L.; Hartley, W. G.; Hollowood, D. L.; Holzapfel, W. L.; Honscheid, K.; Hou, Z.; Hoyle, B.; Hrubes, J. D.; James, D. J.; Jeltema, T.; Kuehn, K.; Kuropatkin, N.; Lee, A. T.; Leitch, E. M.; Lima, M.; Luong-Van, D.; Manzotti, A.; Marrone, D. P.; Marshall, J. L.; McMahon, J. J.; Melchior, P.; Menanteau, F.; Meyer, S. S.; Miller, C. J.; Miquel, R.; Mocanu, L. M.; Mohr, J. J.; Natoli, T.; Padin, S.; Plazas, A. A.; Pryke, C.; Romer, A. K.; Roodman, A.; Ruhl, J. E.; Sanchez, E.; Scarpine, V.; Schaffer, K. K.; Schubnell, M.; Serrano, S.; Sevilla-Noarbe, I.; Shirokoff, E.; Smith, M.; Soares-Santos, M.; Sobreira, F.; Staniszewski, Z.; Stark, A. A.; Story, K. T.; Suchyta, E.; Swanson, M. E. C.; Tarle, G.; Thomas, D.; Troxel, M. A.; Vanderlinde, K.; Vieira, J. D.; Walker, A. R.; Wu, W. L. K.; Zahn, O.

We analyze the cross-correlation between redMaGiC galaxies selected from the Dark Energy Survey (DES) year 1 data and gravitational lensing of the cosmic microwave background (CMB) reconstructed from South Pole Telescope (SPT) and Planck data over 1289 deg². When combining measurements across multiple galaxy redshift bins spanning the redshift range of 0.15 < z < 0.90, we reject the hypothesis of no correlation at 19.9σ significance. When removing small-scale data points where thermal Sunyaev-Zel’dovich signal and nonlinear galaxy bias could potentially bias our results, the detection significance is reduced to 9.9σ. We perform a joint analysis of galaxy-CMB lensing cross-correlations and galaxy clustering to constrain cosmology, finding Ω_m=0.276$$^{+0.029}_{-0.030}$$ and S₈=σ₈$$\sqrt{Ω -m/0.3}$$ = 0.800$$^{+0.090}_{-0.094}$$. We additionally perform two alternate analyses aimed at constraining only the growth rate of cosmic structure as a function of redshift, discovering consistency with predictions from the concordance ΛCDM model. The measurements presented here are part of a joint cosmological analysis that combines galaxy clustering, galaxy lensing and CMB lensing using data from DES, SPT and Planck.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Univ. of Michigan, Ann Arbor, MI (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR); USDOE Office of Science (SC), High Energy Physics (HEP)
• Contributing Organization: DES and SPT Collaborations
• Grant/Contract Number: AC05-00OR22725; SC0019193; SC0007859; AC02-76SF00515; AST-1138766; AST-1536171; ACI-1445606; AYA2015-71825; FPA2015-68048; SEV-2016-0588; SEV-2016-0597; MDM-2015-0509; 240672; 291329; 306478; FP7/2007-2013; CE110001020; AC02-07CH11359; AC02-05CH11231
• OSTI ID: 1560423
• Alternate ID(s): OSTI ID: 1546826; OSTI ID: 1560632; OSTI ID: 1561940; OSTI ID: 1644019; OSTI ID: 1705068
• Journal Information: Physical Review D, Vol. 100, Issue 4; ISSN 2470-0010
• Publisher: American Physical Society (APS)Copyright Statement
• Country of Publication: United States
• Language: English