Published April 15, 2024 | Version Published
Journal Article Open

Validation of spherical Fourier-Bessel power spectrum analysis with log-normal simulations and eBOSS DR16 LRG EZmocks

  • 1. ROR icon California Institute of Technology

Abstract

Tuning into the bass notes of the large-scale structure requires careful attention to geometrical effects arising from wide angles. The spherical Fourier-Bessel (SFB) basis provides a harmonic-space coordinate system that fully accounts for all wide-angle effects. To demonstrate the feasibility of the SFB power spectrum, in this paper we validate our SFB pipeline by applying it to log-normal, and both complete and realistic EZmock simulations that were generated for eBOSS DR16 LRG sample. We include redshift space distortions and the local average effect (also known as integral constraint). The covariance matrix is obtained from 1000 EZmock simulations and inverted using eigenvalue decomposition.

Copyright and License

© 2024 American Physical Society.

Acknowledgement

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PhysRevD.109.083502.pdf

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Additional details

Identifiers

ISSN
2470-0029

Funding

Jet Propulsion Laboratory
California Institute of Technology
National Aeronautics and Space Administration
15-WFIRST15-0008
National Aeronautics and Space Administration
NASA Postdoctoral Fellowship
Goddard Space Flight Center