Andrade-Oliveira, F;
Camacho, H;
Faga, L;
Gomes, R;
Rosenfeld, R;
Troja, A;
Alves, O;
... To, C; + view all
(2021)
Galaxy clustering in harmonic space from the dark energy survey year 1 data: compatibility with real-space results.
Monthly Notices of the Royal Astronomical Society
, 505
(4)
pp. 5714-5724.
10.1093/mnras/stab1642.
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Abstract
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.
| Type: | Article |
|---|---|
| Title: | Galaxy clustering in harmonic space from the dark energy survey year 1 data: compatibility with real-space results |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1093/mnras/stab1642 |
| Publisher version: | https://doi.org/10.1093/mnras/stab1642 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | cosmology: observations, large-scale structure of Universe |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10133359 |
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