Speaker
Description
The J-PAS (Javalambre Physics of the Accelerating Universe Astrophysical Survey) scans the sky through 56 narrow band (~140 Å) + 3 broad band optical filters that render a R~50 spectra of every object detected in the footprint. The first square degree covered by the miniJPAS survey has produced \sigma_{NMAD}<0.005 x (1+z) for most galaxies with r<22.5, thus enabling an accurate reconstruction of the cosmic web conforming Large Scale Structure (LSS) of the universe. The first tests with realistic photo-z PDFs on simulated mocks are also providing an optimal recovery of the 3D power spectrum up to scales of k ~ 0.1-0.2~h/Mpc. The miniJPAS survey has also allowed the identification of ~100 groups with masses above 5x10^{13} M_sun, with high level of purity and completeness up to z~0.4. Likewise, the narrow band filters are particularly sensitive to broad band features such as QSO/AGN emission lines, enabling miniJPAS to identify and pin the redshift of hundreds of QSOs, to be further followed up spectroscopically with WEAVE-QSO. Finally, J-PAS’ sister survey, J-PLUS, with only 12 (7 narrow band + 5 broad band) optical filters, has just covered 3,000 square degrees, and has identified hundreds of thousands of galaxies with high accuracy photo-zs (\sigma_{NMAD}<0.01 x (1+z)). The associated preliminary clustering analyses are demonstrating the potential of spectro-photometric surveys like J-PAS and S-PLUS.
