Dr. Vivian U Profile

Dr. Vivian U

at Univ of California, Irvine

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Proceedings Article | 24 August 2024 Presentation

Far-infrared spectroscopy space telescope (FIRSST)

Asantha Cooray, Meredith MacGregor, Ronald Vervack, Uma Gorti, Vivian U, Gordon Stacey, Martina Wiedner, Paul Grimes, Andrey Baryshev, Karwan Rostem, Thomas Nikola

Proceedings Volume 13092, 130920G (2024) https://doi.org/10.1117/12.3019435

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FIRSST is a far-infrared pointed space-borne observatory led at APL for the 2023 Astrophysics $1B Probe Class mission competition. FIRSST payload consists of a 1.8m telescope that is cryo-cooled to a temperature of 4.7K and two instruments that allow sensitive far-infrared spectroscopy between 35 to 600 microns with resolving powers up to a million. The PI-led science program of FIRSST aims to understand how galaxies grow in the universe, why super-Earths to mini-Neptunes are the most frequent planets, and what is the source of water in rocky planets. As required by NASA, 75% of the mission five-year lifetime is left open to be used by the astronomical community through a time allocation process, similar to the selection of science programs with Hubble and JWST. This talk will summarize the history of far-infrared astronomy, science objectives and requirements, and the technical details of FIRSST.

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