Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 464, Issue 3, Pages 3121-3130Publisher
OXFORD UNIV PRESS
DOI: 10.1093/mnras/stw2576
Keywords
cosmology: observations; cosmology: theory; large-scale structure of Universe
Categories
Funding
- STFC PhD studentship
- ERC grant [670193]
- OCEVU Labex [ANR-11-LABX-0060]
- A*MIDEX project - 'Investissements d'Avenir' French government programme [ANR-11-IDEX-0001-02]
- Science and Technology Facilities Council [1263637] Funding Source: researchfish
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In this work, we reformulate the forward modelling of the redshift-space power spectrum multipole moments for a masked density field, as encountered in galaxy redshift surveys. Exploiting the symmetries of the redshift-space correlation function, we provide a maskedfield generalization of the Hankel transform relation between the multipole moments in real and Fourier space. Using this result, we detail how a likelihood analysis requiring computation for a broad range of desired P(k) models may be executed 103-104 times faster than with other common approaches, together with significant gains in spectral resolution. We present a concrete application to the complex angular geometry of the VIMOS Public Extragalactic Redshift Survey PDR-1 release and discuss the validity of this technique for finite-angle surveys.
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