Census of the Local Universe (CLU) Narrowband Survey. I. Galaxy Catalogs from Preliminary Fields

  title={Census of the Local Universe (CLU) Narrowband Survey. I. Galaxy Catalogs from Preliminary Fields},
  author={David O. Cook and Mansi M. Kasliwal and Angela van Sistine and David L. Kaplan and Jessica S. Sutter and Thomas Kupfer and David L. Shupe and Russ R. Laher and Frank J. Masci and Daniel A. Dale and Branimir Sesar and Patrick R. Brady and Lin Yan and Eran O. Ofek and David Reitze and Shrinivas R. Kulkarni},
  journal={The Astrophysical Journal},
We present the Census of the Local Universe (CLU) narrowband survey to search for emission-line (Hα) galaxies. CLU-Hα has imaged ≈3π of the sky (26,470 deg^2) with four narrowband filters that probe a distance out to 200 Mpc. We have obtained spectroscopic follow-up for galaxy candidates in 14 preliminary fields (101.6 deg2) to characterize the limits and completeness of the survey. In these preliminary fields, CLU can identify emission lines down to an Hα flux limit of 10^(−14) erg s^(−1) cm… 
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