Simulating infrared spectro-photometric surveys with a S<scp>pritz</scp>

Mid- and far-infrared (IR) photometric spectroscopic observations are fundamental to a full understanding of the dust-obscured Universe evolution both star formation black hole accretion in galaxies. In this work, using specifications SPace Infrared telescope for Cosmology Astrophysics (SPICA) as baseline, we investigate capability study mid- far-IR photometry at 34 70 $\mu$m low-resolution spectroscopy 17-36 state-of-the-art Spectro-Photometric Realisations Infrared-selected Targets all-z (SPRITZ) simulation. This investigation is also compared expected performance Origins Space Telescope Galaxy Evolution Probe. The view SPICA-like mission could cover not only bright objects (e.g. L$_{IR}$>10$^{12}$L$_\odot$) up z=10, but normal galaxies(L$_{IR}$<10$^{11}$L$_\odot$) z$\sim$4. At same time, such allow us estimate redshifts physical properties thousands star-forming galaxies active galactic nuclei by observing polycyclic aromatic hydrocarbons large set IR nebular emission lines. way, cold, 2.5-m size space with spectro-photometric analogous SPICA, provide complete three-dimensional (i.e. images integrated spectra) physics governing galaxy