- Main
Dark Energy Survey Year 3 Results: Three-point shear correlations and mass aperture moments
- Secco, LF;
- Jarvis, M;
- Jain, B;
- Chang, C;
- Gatti, M;
- Frieman, J;
- Adhikari, S;
- Alarcon, A;
- Amon, A;
- Bechtol, K;
- Becker, MR;
- Bernstein, GM;
- Blazek, J;
- Campos, A;
- Rosell, A Carnero;
- Kind, M Carrasco;
- Choi, A;
- Cordero, J;
- DeRose, J;
- Dodelson, S;
- Doux, C;
- Drlica-Wagner, A;
- Everett, S;
- Giannini, G;
- Gruen, D;
- Gruendl, RA;
- Harrison, I;
- Hartley, WG;
- Herner, K;
- Krause, E;
- MacCrann, N;
- McCullough, J;
- Myles, J;
- Navarro-Alsina, A;
- Prat, J;
- Rollins, RP;
- Samuroff, S;
- Sánchez, C;
- Sevilla-Noarbe, I;
- Sheldon, E;
- Troxel, MA;
- Zeurcher, D;
- Aguena, M;
- Andrade-Oliveira, F;
- Annis, J;
- Bacon, D;
- Bertin, E;
- Bocquet, S;
- Brooks, D;
- Burke, DL;
- Carretero, J;
- Castander, FJ;
- Crocce, M;
- da Costa, LN;
- Pereira, MES;
- De Vicente, J;
- Diehl, HT;
- Doel, P;
- Eckert, K;
- Ferrero, I;
- Flaugher, B;
- Friedel, D;
- García-Bellido, J;
- Gutierrez, G;
- Hinton, SR;
- Hollowood, DL;
- Honscheid, K;
- Huterer, D;
- Kuehn, K;
- Kuropatkin, N;
- Maia, MAG;
- Marshall, JL;
- Menanteau, F;
- Miquel, R;
- Mohr, JJ;
- Morgan, R;
- Muir, J;
- Paz-Chinchón, F;
- Pieres, A;
- Malagón, AA Plazas;
- Rodriguez-Monroy, M;
- Roodman, A;
- Sanchez, E;
- Serrano, S;
- Suchyta, E;
- Swanson, MEC;
- Tarle, G;
- Thomas, D;
- To, C;
- Weller, J
- et al.
Published Web Location
https://doi.org/10.1103/physrevd.105.103537Abstract
We present high signal-to-noise measurements of three-point shear correlations and the third moment of the mass aperture statistic using the first 3 years of data from the Dark Energy Survey. We additionally obtain the first measurements of the configuration and scale dependence of the four three-point shear correlations which carry cosmological information. With the third-order mass aperture statistic, we present tomographic measurements over angular scales of 4 to 60 arcminutes with a combined statistical significance of 15.0σ. Using the tomographic information and measuring also the second-order mass aperture, we additionally obtain a skewness parameter and its redshift evolution. We find that the amplitudes and scale-dependence of these shear 3pt functions are in qualitative agreement with measurements in a mock galaxy catalog based on N-body simulations, indicating promise for including them in future cosmological analyses. We validate our measurements by showing that B-modes, parity-violating contributions and PSF modeling uncertainties are negligible, and determine that the measured signals are likely to be of astrophysical and gravitational origin.
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