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DESI luminous red galaxy samples for cross-correlations

Journal Article · · Journal of Cosmology and Astroparticle Physics
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  1. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); University of Michigan, Ann Arbor MI
  2. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); University of California, Berkeley, CA (United States)
  3. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
  4. Boston University, MA (United States)
  5. University College London (United Kingdom)
  6. University of Utah, Salt Lake City, UT (United States)
  7. Universidad Nacional Autónoma de México (Mexico)
  8. University of Pittsburgh, PA (United States)
  9. The Barcelona Institute of Science and Technology, Bellaterra (Spain)
  10. Universidad de los Andes (Colombia)
  11. Sorbonne Université, Paris (France)
  12. Université Paris-Saclay, Gif-sur-Yvette (France)
  13. Universitat Autònoma de Barcelona, Bellaterra (Spain); The Barcelona Institute of Science and Technology, Bellaterra (Spain)
  14. NSF's NOIRLab, Tucson, AZ (United States)
  15. Institució Catalana de Recerca i Estudis Avançats, Barcelona (Spain); The Barcelona Institute of Science and Technology, Bellaterra (Spain)
  16. Siena College, Loudonville, NY (United States)
  17. University of Wyoming, Laramie, WY (United States)
  18. Chinese Academy of Sciences, Beijing (China)
  19. University of Waterloo, ON (Canada); Perimeter Institute for Theoretical Physics, Waterloo, ON (Canada)
  20. Kansas State University, Manhattan, KS (United States)
  21. Sejong University, Seoul (Korea)
  22. CIEMAT, Madrid (Spain)
  23. University of Michigan, Ann Arbor, MI (United States)
  24. Ohio University, Athens, OH (United States)
+ Show Author Affiliations
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. Here, 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.
Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); University of Michigan, Ann Arbor, MI (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF); USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
AC02-05CH11231; SC0019193
OSTI ID:
2368512
Alternate ID(s):
OSTI ID: 2368794
Journal Information:
Journal of Cosmology and Astroparticle Physics, Journal Name: Journal of Cosmology and Astroparticle Physics Journal Issue: 11 Vol. 2023; ISSN 1475-7516
Publisher:
Institute of Physics (IOP)Copyright Statement
Country of Publication:
United States
Language:
English

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