THE CHANDRA COSMOS LEGACY SURVEY: OPTICAL/IR IDENTIFICATIONS

@article{Marchesi2015THECC,
  title={THE CHANDRA COSMOS LEGACY SURVEY: OPTICAL/IR IDENTIFICATIONS},
  author={Stefano Marchesi and Francesca Civano and Martin Elvis and Mara Salvato and Marcella Brusa and Andrea Comastri and Roberto Gilli and Guenther Hasinger and Giorgio Lanzuisi and Takamitsu Miyaji and Ezequiel Treister and C. Meg Urry and Cristian Vignali and Gianni Zamorani and Viola Allevato and Nico Cappelluti and Carie Cardamone and Alexis Finoguenov and Richard E Griffiths and Alexander Karim and Clotilde Laigle and Stephanie M. LaMassa and Knud Jahnke and Piero Ranalli and Kevin Schawinski and Eva Schinnerer and John D. Silverman and Vernesa Smol{\vc}i{\'c} and Hyewon Suh and Benny Trakhtenbrot},
  journal={The Astrophysical Journal},
  year={2015},
  volume={817}
}
We present the catalog of optical and infrared counterparts of the Chandra COSMOS-Legacy Survey, a 4.6 Ms Chandra program on the 2.2 deg2 of the COSMOS field, combination of 56 new overlapping observations obtained in Cycle 14 with the previous C-COSMOS survey. In this Paper we report the i, K, and 3.6 μm identifications of the 2273 X-ray point sources detected in the new Cycle 14 observations. We use the likelihood ratio technique to derive the association of optical/infrared (IR) counterparts… 

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