Article · Wikipedia archive · Last revised Jun 19, 2026

DEEP2 Redshift Survey

The DEEP2 Survey or DEEP2 was a two-phased Redshift survey of Redshift z ~ 1 galaxies. It used the twin 10 metre Keck telescopes in Hawaii to measure the spectra and redshifts of approximately 50,000 galaxies. It was the first project to study galaxies in the distant Universe with a spectral resolution similar to local surveys, such as the Sloan Digital Sky Survey. It was completed in 2013.

Last revised
Jun 19, 2026
Read time
≈ 1 min
Length
169 w
Citations
3
Source
Wikipedia ↗
DEEP2 Redshift Survey
Websitedeep.ucolick.org

The DEEP2 Survey or DEEP2 was a two-phased Redshift survey of Redshift z ~ 1 galaxies (where z= a measure of speed and by extension, the distance from earth). It used the twin 10 metre Keck telescopes in Hawaii to measure the spectra and redshifts of approximately 50,000 galaxies.1 It was the first project to study galaxies in the distant Universe with a spectral resolution similar to local surveys, such as the Sloan Digital Sky Survey.2 It was completed in 2013.1

References

References

  1. Newman, Jeffrey A.; Cooper, Michael C.; Davis, Marc; Faber, S. M.; Coil, Alison L.; Guhathakurta, Puragra; Koo, David C.; Phillips, Andrew C.; Conroy, Charlie; Dutton, Aaron A.; Finkbeiner, Douglas P.; Gerke, Brian F.; Rosario, David J.; Weiner, Benjamin J.; Willmer, C. N. A. (2013-08-29). "THE DEEP2 GALAXY REDSHIFT SURVEY: DESIGN, OBSERVATIONS, DATA REDUCTION, AND REDSHIFTS". The Astrophysical Journal Supplement Series. 208 (1): 5. arXiv:1203.3192. doi:10.1088/0067-0049/208/1/5. ISSN 0067-0049.
  2. "Deep2 Data Suggests Fine Structure Constant Doesn't Change". www.aps.org. Archived from the original on 2024-07-18. Retrieved 2025-12-05.