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3/15/18: SO/NOAO Joint Colloquium Series: Claudia Mendes de Oliveira, University of Sao Paulo


Title: New Multi-Color Surveys - An IFU-Like Data Cube of the Nearby Universe

In this talk we will present three large optical multicolor photometric surveys, J-PLUS, S-PLUS and J-PAS, carried out using dedicated telescopes located in mainland Spain and at Cerro Tololo, Chile. J-PLUS and S-PLUS (Javalambre/Southern Photometric Local Universe Survey), which have already observed few hundreds of square degrees, will cover, together, 16k square degrees of the northern and southern sky, with twelve filters, 5 sloan-like and 7 narrow-band filters placed on stellar spectral features. We will present the first results on cluster membership studies using precise photo-zs, searches for quasars, IFU-like analysis of nearby galaxies (2D stellar populations and star formation rates), morphological studies and bulge/disk decompositions, etc. We will then present forecasts for the J-PAS survey, which will start delivering data at the end of this year. The Javalambre Physics of the Accelerating Universe Astrophysical Survey (J-PAS) will be done with a dedicated 2.5m telescope, using a set of 54 narrow-band (~145 Å) filters, covering from 3785 Å to 9100 Å and 5 medium/broad-band filters. J-PAS will image 8500 square degrees of the northern sky and will obtain 0.003(1 + z) precision photometric redshifts for 9 × 10^7 galaxies. This will effectively create an IFU-like image, i.e., a low-resolution 3D image of the northern sky, which will serve as a fundamental dataset for a number of projects, in particular for studies of galaxy evolution.

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