Galaxy clustering in harmonic space from the dark energy survey year 1 data: compatibility with real-space results
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Data
2021-08-01
Autores
Andrade-Oliveira, F. [UNESP]
Camacho, H. [UNESP]
Faga, L.
Gomes, R.
Rosenfeld, R. [UNESP]
Troja, A. [UNESP]
Alves, O. [UNESP]
Doux, C.
Elvin-Poole, J.
Fang, X.
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Resumo
We perform an analysis in harmonic space of the Dark Energy Survey Year 1 Data (DES-Y1) galaxy clustering photometric data using products obtained for the real-space analysis. We test our pipeline with a suite of lognormal simulations, which are used to validate scale cuts in harmonic space as well as to provide a covariance matrix that takes into account the DES-Y1 mask. We then apply this pipeline to DES-Y1 data taking into account survey property maps derived for the real-space analysis. We compare with real-space DES-Y1 results obtained from a similar pipeline. We show that the harmonic space analysis we develop yields results that are compatible with the real-space analysis for the bias parameters. This verification paves the way to performing a harmonic space analysis for the upcoming DES-Y3 data.
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Cosmology: observations, Large-scale structure of Universe
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Monthly Notices of the Royal Astronomical Society, v. 505, n. 4, p. 5714-5724, 2021.