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Title: Dark Energy Survey year 1 results: Joint analysis of galaxy clustering, galaxy lensing, and CMB lensing two-point functions

Abstract

We perform a joint analysis of the auto and cross-correlations between three cosmic fields: the galaxy density field, the galaxy weak lensing shear field, and the cosmic microwave background (CMB) weak lensing convergence field. These three fields are measured using roughly 1300 sq. deg. of overlapping optical imaging data from first year observations of the Dark Energy Survey (DES) and millimeter-wave observations of the CMB from both the South Pole Telescope Sunyaev-Zel’dovich survey and Planck. We present cosmological constraints from the joint analysis of the two-point correlation functions between galaxy density and galaxy shear with CMB lensing. We test for consistency between these measurements and the DES-only two-point function measurements, finding no evidence for inconsistency in the context of flat Λ CDM cosmological models. Performing a joint analysis of five of the possible correlation functions between these fields (excluding only the CMB lensing autospectrum) yields S 8 ≡ σ 8 $$\sqrt{Ω_{m}}/0.3$$ = 0.782$$^{+0.019}_{-0.025}$$ and Ω m = 0.260$$^{+0.029}_{-0.019}$$. We test for consistency between these five correlation function measurements and the Planck-only measurement of the CMB lensing autospectrum, again finding no evidence for inconsistency in the context of flat Λ CDM models. Combining constraints from all six two-point functions yields S 8 = 0.776$$^{+0.014}_{-0.021}$$ and Ω m = 0.271$$^{+0.022}_{-0.016}$$. These results provide a powerful test and confirmation of the results from the first year DES joint-probes analysis.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
National Science Foundation (NSF); United Kingdom Science and Technology Facilities Council; University of Illinois-Urbana-Champaign - National Center for Supercomputing Applications; USDOE Office of Science - Office of High Energy Physics
OSTI Identifier:
1569025
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 100; Journal Issue: 2; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English

Citation Formats

Abbott, T. M. C., Abdalla, F. B., Alarcon, A., Allam, S., Annis, J, Avila, S., Aylor, K, Banerji, M., Banik, N., Baxter, E. J., Becker, M. R., Bleem, L., Carlstrom, J. E., Vikram, V., and Chang, C. L. Dark Energy Survey year 1 results: Joint analysis of galaxy clustering, galaxy lensing, and CMB lensing two-point functions. United States: N. p., 2019. Web. doi:10.1103/PhysRevD.100.023541.
Abbott, T. M. C., Abdalla, F. B., Alarcon, A., Allam, S., Annis, J, Avila, S., Aylor, K, Banerji, M., Banik, N., Baxter, E. J., Becker, M. R., Bleem, L., Carlstrom, J. E., Vikram, V., & Chang, C. L. Dark Energy Survey year 1 results: Joint analysis of galaxy clustering, galaxy lensing, and CMB lensing two-point functions. United States. doi:10.1103/PhysRevD.100.023541.
Abbott, T. M. C., Abdalla, F. B., Alarcon, A., Allam, S., Annis, J, Avila, S., Aylor, K, Banerji, M., Banik, N., Baxter, E. J., Becker, M. R., Bleem, L., Carlstrom, J. E., Vikram, V., and Chang, C. L. Fri . "Dark Energy Survey year 1 results: Joint analysis of galaxy clustering, galaxy lensing, and CMB lensing two-point functions". United States. doi:10.1103/PhysRevD.100.023541.
@article{osti_1569025,
title = {Dark Energy Survey year 1 results: Joint analysis of galaxy clustering, galaxy lensing, and CMB lensing two-point functions},
author = {Abbott, T. M. C. and Abdalla, F. B. and Alarcon, A. and Allam, S. and Annis, J and Avila, S. and Aylor, K and Banerji, M. and Banik, N. and Baxter, E. J. and Becker, M. R. and Bleem, L. and Carlstrom, J. E. and Vikram, V. and Chang, C. L.},
abstractNote = {We perform a joint analysis of the auto and cross-correlations between three cosmic fields: the galaxy density field, the galaxy weak lensing shear field, and the cosmic microwave background (CMB) weak lensing convergence field. These three fields are measured using roughly 1300 sq. deg. of overlapping optical imaging data from first year observations of the Dark Energy Survey (DES) and millimeter-wave observations of the CMB from both the South Pole Telescope Sunyaev-Zel’dovich survey and Planck. We present cosmological constraints from the joint analysis of the two-point correlation functions between galaxy density and galaxy shear with CMB lensing. We test for consistency between these measurements and the DES-only two-point function measurements, finding no evidence for inconsistency in the context of flat Λ CDM cosmological models. Performing a joint analysis of five of the possible correlation functions between these fields (excluding only the CMB lensing autospectrum) yields S8 ≡ σ8 $\sqrt{Ω_{m}}/0.3$ = 0.782$^{+0.019}_{-0.025}$ and Ωm = 0.260$^{+0.029}_{-0.019}$. We test for consistency between these five correlation function measurements and the Planck-only measurement of the CMB lensing autospectrum, again finding no evidence for inconsistency in the context of flat Λ CDM models. Combining constraints from all six two-point functions yields S8 = 0.776$^{+0.014}_{-0.021}$ and Ωm = 0.271$^{+0.022}_{-0.016}$. These results provide a powerful test and confirmation of the results from the first year DES joint-probes analysis.},
doi = {10.1103/PhysRevD.100.023541},
journal = {Physical Review D},
issn = {2470-0010},
number = 2,
volume = 100,
place = {United States},
year = {2019},
month = {7}
}