Euclid preparation: XX. The Complete Calibration of the Color-Redshift Relation survey: LBT observations and data release

Euclid Consortium, A. Amara, S. Nadathur

Research output: Contribution to journalArticlepeer-review

2 Downloads (Pure)

Abstract

The Complete Calibration of the Color-Redshift Relation survey (C3R2) is a spectroscopic programme designed to empirically calibrate the galaxy color-redshift relation to the Euclid depth (I_E=24.5), a key ingredient for the success of Stage IV dark energy projects based on weak lensing cosmology. A spectroscopic calibration sample as representative as possible of the galaxies in the Euclid weak lensing sample is being collected, selecting galaxies from a self-organizing map (SOM) representation of the galaxy color space. Here, we present the results of a near-infrared H- and K-bands spectroscopic campaign carried out using the LUCI instruments at the LBT. For a total of 251 galaxies, we present new highly-reliable redshifts in the 1.3
Original languageEnglish
Article numberA196
Number of pages22
JournalAstronomy and Astrophysics
Volume664
DOIs
Publication statusPublished - 30 Aug 2022

Keywords

  • astro-ph.CO
  • galaxies: distances and redshifts
  • catalogs
  • surveys

Fingerprint

Dive into the research topics of 'Euclid preparation: XX. The Complete Calibration of the Color-Redshift Relation survey: LBT observations and data release'. Together they form a unique fingerprint.

Cite this