The Warm Spitzer Mission: Prospects for Studies of the Distant Universe

摘要: IRAC excels at detecting distant objects. Due to a combination of the shapes spectral energy distributions galaxies and low background achieved from space, reaches greater depth in comparable exposure time 3.6 4.5 micron than any ground- or space-based facility currently can 2.2 micron. Furthermore, longer wavelengths probed by enable studies rest-frame optical near-infrared light AGN much higher redshift is possible ground. This white paper explores merits different survey strategies for studying universe during warm mission. A three-tiered approach serves wide range science goals uses spacecraft effectively: 1) an ultra-deep ~0.04 square degrees ~250 hrs (in conjunction with HST/WFC3 program), study Universe 7 6 characterize relation between build-up dark matter halos their constituent 2