The Origins Space Telescope (OST) is the mission concept for a mid- andfar-IR surveyor, one of NASA's flagship-class studies for the 2020 DecadalSurvey. Operating between 5 microns and 660 microns, OST's cold (4K)telescope ( 5.9m) will provide a sensitivity that is orders of magnitudebetter than what can be currently achieved. This capability opens up a widerange of science goals, within the themes of "Are we alone?", "How did weget here?" and "How does the Universe work?" A suite of four instruments isbeing studied, which include broad-band imaging, spectroscopic,polarimetric, and coronagraphic capabilities. Moreover, OST will be capableof fast mapping speeds to support large-area surveys in the infrared.The satellite will used for projects such as targeted exoplanetinvestigations, tracking water through astrophysical environments,charting the rise of metals, and large-scale mapping of the Universe in IRcontinuum and lines. It will build upon the wide-area surveys of WFIRSTand Euclid. Its complementarity with other facilities also offers OST thepossibility of probing the end of the dark ages, as well as following upobscured gravitational wave sources and other transient phenomena, in waysthat are not possible at optical wavelengths.
42nd COSPAR Scientific Assembly
- Pub Date:
- July 2018