Dark Energy Survey Year 1 results: Methodology and projections for joint analysis of galaxy clustering, galaxy lensing, and CMB lensing two-point functions

Journal Article · Fri Jan 04 00:00:00 EST 2019 · Physical Review D

DOI:https://doi.org/10.1103/PhysRevD.99.023508· OSTI ID:1491675

Baxter, E. J.; Omori, Y.; Chang, C.; Giannantonio, T.; Kirk, D.; Krause, E.; Blazek, J.; Bleem, L.; Choi, A.; Crawford, T. M.; Dodelson, S.; Eifler, T. F.; Friedrich, O.; Gruen, D.; Holder, G. P.; Jain, B.; Jarvis, M.; MacCrann, N.; Nicola, A.; Pandey, S. ; Prat, J.; Reichardt, C. L.; Samuroff, S.; Sánchez, C.; Secco, L. F.; Sheldon, E.; Troxel, M. A.; Zuntz, J.; Abbott, T. M. C.; Abdalla, F. B.; Annis, J.; Avila, S.; Bechtol, K.; Benson, B. A.; Bertin, E.; Brooks, D.; Buckley-Geer, E.; Burke, D. L.; Carnero Rosell, A.; Carrasco Kind, M.; Carretero, J.; Castander, F. J.; Cawthon, R.; Cunha, C. E.; D’Andrea, C. B.; da Costa, L. N.; Davis, C.; De Vicente, J.; DePoy, D. L.; Diehl, H. T.; Doel, P.; Estrada, J.; Evrard, A. E.; Flaugher, B.; Fosalba, P.; Frieman, J.; García-Bellido, J.; Gaztanaga, E.; Gerdes, D. W.; Gruendl, R. A.; Gschwend, J.; Gutierrez, G.; Hartley, W. G.; Hollowood, D.; Hoyle, B.; James, D. J.; Kent, S.; Kuehn, K.; Kuropatkin, N.; Lahav, O.; Lima, M.; Maia, M. A. G.; March, M.; Marshall, J. L.; Melchior, P.; Menanteau, F.; Miquel, R.; Plazas, A. A.; Roodman, A.; Rykoff, E. S.; Sanchez, E.; Schindler, R.; Schubnell, M.; Sevilla-Noarbe, I.; Smith, M.; Smith, R. C.; Soares-Santos, M.; Sobreira, F.; Suchyta, E.; Swanson, M. E. C.; Tarle, G.; Walker, A. R.; Wu, W. L. K.; Weller, J.

Optical imaging surveys measure both the galaxy density and the gravitational lensing-induced shear fields across the sky. Recently, the Dark Energy Survey (DES) collaboration used a joint fit to two-point correlations between these observables to place tight constraints on cosmology (DES Collaboration et al. 2017). In this work, we develop the methodology to extend the DES year one joint probes analysis to include cross-correlations of the optical survey observables with gravitational lensing of the cosmic microwave background (CMB) as measured by the South Pole Telescope (SPT) and Planck. Using simulated analyses, we show how the resulting set of five two-point functions increases the robustness of the cosmological constraints to systematic errors in galaxy lensing shear calibration. Additionally, we show that contamination of the SPT+Planck CMB lensing map by the thermal Sunyaev-Zel'dovich effect is a potentially large source of systematic error for two-point function analyses, but show that it can be reduced to acceptable levels in our analysis by masking clusters of galaxies and imposing angular scale cuts on the two-point functions. The methodology developed here will be applied to the analysis of data from the DES, the SPT, and Planck in a companion work.

• 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); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Univ. of Michigan, Ann Arbor, MI (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• Contributing Organization: DES and SPT Collaborations
• Grant/Contract Number: SC0012704; SC0007901; SC0015975; AC02-07CH11359; AC02- 06CH11357; AC02-06CH11357; PHY-0114422; AC05-00OR22725; SC0019193
• OSTI ID: 1491675
• Alternate ID(s): OSTI ID: 1423573; OSTI ID: 1489706; OSTI ID: 1503977; OSTI ID: 1728574
• Report Number(s): BNL-210899-2019-JAAM; arXiv:1802.05257; FERMILAB-PUB-18-045-A-AE; PRVDAQ
• Journal Information: Physical Review D, Vol. 99, Issue 2; ISSN 2470-0010
• Publisher: American Physical Society (APS)
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
cmb
galaxy
lensing
clustering
DES
SPT
Planck
gravitational