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October 8, 2025Journal of Cosmology and Astroparticle Physics

Scale-dependent bias and mode coupling in redshift-space clustering near the BAO scale

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Authors

APAseem ParanjapeRSRavi K. Sheth

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Overview

A model demonstrates significant scale-dependent bias on BAO scales in biased tracers, indicating implications for surveys like DESI.

Key Points

  • Scale-dependent bias is crucial for understanding redshift-space clustering near the BAO scale, highlighting its significance in modeling.
  • Results show that incorporating scale-dependent bias improves the accuracy of 2-point clustering models for tracer samples at BAO scales.
  • Methodology involves a model-agnostic approach utilizing peaks theory and the Zel'dovich approximation to address bias and coupling effects.
  • Implications indicate that while scale-dependent bias is critical, the impact of mode coupling appears to be less significant in current observational surveys.

Cite This Study

Paranjape et al. (2025) studied this question.

synapsesocial.com/papers/68e6f342f8145af55aeacc6chttps://doi.org/10.1088/1475-7516/2025/10/031
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