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We present a catalog covering 1.62 deg^2 of the COSMOS/UltraVISTA field withPSF-matched photometry in 30 photometric bands. The catalog covers thewavelength range 0.15um - 24um including the available GALEX, Subaru, CFHT,VISTA and Spitzer data. Catalog sources have been selected from the DR1UltraVISTA Ks band imaging that reaches a depth of K_{s,tot} = 23.4 AB (90%completeness). The PSF-matched catalog is generated using position-dependentPSFs ensuring accurate colors across the entire field. Also included is acatalog of photometric redshifts (z_phot) for all galaxies computed with theEAZY code. Comparison with spectroscopy from the zCOSMOS 10k bright sampleshows that up to z ~ 1.5 the z_phot are accurate to dz/(1 + z) = 0.013, with acatastrophic outlier fraction of only 1.6%. The z_phot also show good agreementwith the z_phot from the NEWFIRM Medium Band Survey (NMBS) out to z ~ 3. Acatalog of stellar masses and stellar population parameters for galaxiesdetermined using the FAST spectral energy distribution fitting code is providedfor all galaxies. Also included are rest-frame U-V and V-J colors, L_2800 andL_IR. The UVJ color-color diagram confirms that the galaxy bi-modality iswell-established out to z ~ 2. Star-forming galaxies also obey a star forming"main sequence" out to z ~ 2.5, and this sequence evolves in a mannerconsistent with previous measurements. The COSMOS/UltraVISTA Ks-selectedcatalog covers a unique parameter space in both depth, area, andmulti-wavelength coverage and promises to be a useful tool for studying thegrowth of the galaxy population out to z ~ 3 - 4.

A Public Ks-selected Catalog in the COSMOS/UltraVISTA Field: Photometry, Photometric Redshifts and Stellar Population Parameters