Oral Abstract

Oral Contribution (O0.3) Lingyu Wang ()

Galaxy evolution with SPICA

SPICA (SPace IR telescope for Cosmology and Astrophysics), if selected as ESA's fifth medium class Cosmic Vision mission, will be the most sensitive telescope in the mid- and far-infrared. The SPICA mission is designed to address, based on the ultimate performances offered by a large cooled telescope in space operating in the thermal infrared, a fundamental limitation that astronomy is facing: the presence of large amounts of dust, hiding from view major phases of the constitution and assembly of most astrophysical and cosmological structures. SPICA will provide 2-3 orders of magnitude improvement over Herschel and Spitzer, and the ability to access the spectral features proven valuable by both missions in the local Universe. By providing access to the mid- and far infrared wavelength domain, SPICA will bridge the gap between ALMA in the sub-millimetre domain and optical/near-infrared telescopes such as the James Webb Space Telescope (JWST) and the new generation of Extremely Large Telescopes (ELTs).

In my talk, I will give a brief overview of the design of the mission, its instruments (the SPICA Mid-infrared camera/spectrometer SMI, the SPICA FAR-infrared Instrument SAFARI, and the SPICA Far-IR Polarimeter B-BOP) and capabilities. After that, I will focus on the galaxy evolution studies that will be enabled by SPICA cosmological surveys, which will provide ​the first 3-dimensional view of the hidden side of star formation and black hole accretion in large cosmic volumes, including ​all representative environments from voids to cluster cores, over 90 percent of cosmic time​.