J/A+A/590/A102      VIPERS Multi-Lambda Survey                  (Moutard+, 2016)
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	vipmlsw1.dat vipmlsw4.dat
Query from: http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=J/A+A/590/A102

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Beginning of ReadMe : J/A+A/590/A102 VIPERS Multi-Lambda Survey (Moutard+, 2016) ================================================================================ The VIPERS Multi-Lambda Survey. I. UV and NIR observations, multi-colour catalogues, and photometric redshifts. Moutard T., Arnouts S., Ilbert O., Coupon J., Hudelot P., Vibert D., Comte V., Conseil S., Davidzon I., Guzzo L., Llebaria A., Martin C., McCracken H.J., Milliard B., Morrison G., Schiminovich D., Treyer M., Van Werbaeke L. <Astron. Astrophys. 590, A102 (2016)> =2016A&A...590A.102M (SIMBAD/NED BibCode) ================================================================================ ADC_Keywords: Galaxy catalogs ; Galaxies, photometry ; Redshifts Keywords: galaxies: photometry - galaxies: distances and redshifts - galaxies: evolution Abstract: We present observations collected in the CFHTLS-VIPERS region in the ultraviolet with the GALEX satellite (far- and near-ultraviolet channels) and in the near-infrared with the CFHT/WIRCam camera (Ks band) over an area of 22 and 27deg^2^, respectively. The depth of the photometry was optimised to measure the physical properties (e.g., star formation rate, stellar masses) of all the galaxies in the VIPERS spectroscopic survey. The large volume explored by VIPERS will enable a unique investigation of the relationship between the galaxy properties and their environment (density field and cosmic web) at high redshift (0.5<=z<=1.2). In this paper, we present the observations, the data reductions, and the build-up of the multi-colour catalogues. The CFHTLS-T0007 (gri-chi^2^) images are used as reference to detect and measure the Ks -band photometry, while the T0007 u*-selected sources are used as priors to perform the GALEX photometry based on a dedicated software (EMphot). Our final sample reaches NUV_AB_ 25 (at 5sigma) and K_AB_ 22 (at 3sigma). The large spectroscopic sample ( 51,000 spectroscopic redshifts) allows us to highlight the robustness of our star/galaxy separation and the reliability of our photometric redshifts with a typical accuracy of sigma]_z_<=0:04 and a fraction of catastrophic failures eta<=2% down to i 23. We present various tests on the Ks -band completeness and photometric redshift accuracy by comparing our results with existing overlapping deep photometric catalogues. Finally, we discuss the BzK sample of passive and active galaxies at high redshift and the evolution of galaxy morphology in the (NUV-r) vs (r-Ks) diagram at low redshift (z<=0.25) based on the high image quality of the CFHTLS. The images, catalogues, and photometric redshifts for 1.5 million sources (down to NUV<=25 union Ks<=22) are released and available at this URL: http://cesam.lam.fr/vipers-mls/. Description: The Canada-France-Hawaii Telescope Legacy Survey (CFHTLS) is an imaging survey performed with Mega-Cam in five optical bands u*, g, r, i, z. we use the images and photometric catalogues of the W1 and W4 fields from the worldwide T00073 release produced by TERAPIX4. Since 2010, we have conducted a Ks-band follow-up of the VIPERS fields with the WIRCam instrument at CFHT. The original motivation was to guarantee an almost complete detection in Ks band of the VIPERS spectroscopic galaxies.