pith. sign in

arxiv: 2201.05227 · v2 · pith:LDRGNDLWnew · submitted 2022-01-13 · 🌌 astro-ph.CO

Dark Energy Survey Year 3 Results: Three-Point Shear Correlations and Mass Aperture Moments

L. F. Secco , M. Jarvis , B. Jain , C. Chang , M. Gatti , J. Frieman , S. Adhikari , A. Alarcon
show 82 more authors
A. Amon K. Bechtol M. R. Becker G. M. Bernstein J. Blazek A. Campos A. Carnero Rosell M. Carrasco Kind A. Choi J. Cordero J. DeRose S. Dodelson C. Doux A. Drlica-Wagner S. Everett G. Giannini D. Gruen R. A. Gruendl I. Harrison W. G. Hartley K. Herner E. Krause N. MacCrann J. McCullough J. Myles A. Navarro-Alsina J. Prat R. P. Rollins S. Samuroff C. Sanchez I. Sevilla-Noarbe E. Sheldon M. A. Troxel D. Zeurcher M. Aguena F. Andrade-Oliveira J. Annis D. Bacon E. Bertin S. Bocquet D. Brooks D. L. Burke J. Carretero F. J. Castander M. Crocce L. N. da Costa M. E. S. Pereira J. De Vicente H. T. Diehl P. Doel K. Eckert I. Ferrero B. Flaugher D. Friedel J. Garcia-Bellido G. Gutierrez S. R. Hinton D. L. Hollowood K. Honscheid D. Huterer K. Kuehn N. Kuropatkin M. A. G. Maia J. L. Marshall F. Menanteau R. Miquel J. J. Mohr R. Morgan J. Muir F. Paz-Chinchon A. Pieres A. A. Plazas Malagon M. Rodriguez-Monroy A. Roodman E. Sanchez S. Serrano E. Suchyta M. E. C. Swanson G. Tarle D. Thomas C. To J. Weller
This is my paper
classification 🌌 astro-ph.CO
keywords measurementsaperturemassshearcorrelationsthree-pointadditionallycosmological
0
0 comments X
read the original abstract

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 15.0$\sigma$. 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.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. $4\times3$ Point Correlation Functions in Galaxy Surveys: Impact of Baryonic Feedback

    astro-ph.CO 2026-05 unverdicted novelty 5.0

    Baryonic feedback affects galaxy-galaxy, galaxy-shear, and shear-shear three-point correlation functions more strongly than two-point functions on small scales, reaching up to 90 percent suppression depending on redsh...