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

Understand

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.