Cosmic Void Baryon Acoustic Oscillation Measurement: Evaluation of Sensitivity to Selection Effects

Understand

Cosmic voids defined as a subset of Delaunay Triangulation (DT) circumspheres have been used to measure the Baryon Acoustic Oscillations (BAO) scale; providing tighter constraints on cosmological parameters when combined with matter tracers.

• These voids are defined as spheres larger than a given radius threshold, which is constant over the survey volume.
• However, the response of these void tracers to observational systematics has not yet been studied.
• In this work we analyse the response of void clustering to selection effects.