Zhou, R;
Ferraro, S;
White, M;
DeRose, J;
Sailer, N;
Aguilar, J;
Ahlen, S;
... Zhou, Z; + view all
(2023)
DESI luminous red galaxy samples for cross-correlations.
Journal of Cosmology and Astroparticle Physics
, 2023
(11)
, Article 097. 10.1088/1475-7516/2023/11/097.
Preview |
Text
2309.06443.pdf - Accepted Version Download (6MB) | Preview |
Abstract
We present two galaxy samples, selected from DESI Legacy Imaging Surveys (LS) DR9, with approximately 20,000 square degrees of coverage and spectroscopic redshift distributions designed for cross-correlations such as with CMB lensing, galaxy lensing, and the Sunyaev-Zel'dovich effect. The first sample is identical to the DESI Luminous Red Galaxy (LRG) sample, and the second sample is an extended LRG sample with 2-3 times the DESI LRG density. We present the improved photometric redshifts, tomographic binning and their spectroscopic redshift distributions and imaging systematics weights, and magnification bias coefficients. The catalogs and related data products will be made publicly available. The cosmological constraints using this sample and Planck lensing maps are presented in a companion paper. We also make public the new set of general-purpose photometric redshifts trained using DESI spectroscopic redshifts, which are used in this work, for all galaxies in LS DR9.
| Type: | Article |
|---|---|
| Title: | DESI luminous red galaxy samples for cross-correlations |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1088/1475-7516/2023/11/097 |
| Publisher version: | http://dx.doi.org/10.1088/1475-7516/2023/11/097 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | cosmological parameters from LSS, power spectrum, CMB, galaxy clustering |
| 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-pp.ucl.ac.uk/id/eprint/10184924 |
Archive Staff Only
 |
View Item |
