TY  - EJOUR
AU  - Ben-Ami, Sagi
AU  - Shvartzvald, Yossi
AU  - Waxman, Eli
AU  - Netzer, Udi
AU  - Yaniv, Yoram
AU  - Algranatti, Viktor M.
AU  - Gal-Yam, Avishay
AU  - Lapid, Ofer
AU  - Ofek, Eran
AU  - Topaz, Jeremy
AU  - Arcavi, Iair
AU  - Asif, Arooj
AU  - Azaria, Shlomi
AU  - Bahalul, Eran
AU  - Barschke, Merlin F.
AU  - Bastian-Querner, Benjamin
AU  - Berge, David
AU  - Berlea, Vlad D.
AU  - Buhler, Rolf
AU  - Dittmar, Louise
AU  - Gelman, Anatoly
AU  - Giavitto, Gianluca
AU  - Guttman, Or
AU  - Crespo, Juan M. Haces
AU  - Heilbrunn, Daniel
AU  - Kachergincky, Arik
AU  - Kaipachery, Nirmal
AU  - Kowalski, Marek
AU  - Kulkarni, Shrinivasrao R.
AU  - Kumar, Shashank
AU  - Kusters, Daniel
AU  - Liran, Tuvia
AU  - Miron-Salomon, Yonit
AU  - Mor, Zohar
AU  - Nir, Aharon
AU  - Nitzan, Gadi
AU  - Philipp, Sebastian
AU  - Porelli, Andrea
AU  - Sagiv, Ilan
AU  - Schliwinski, Julian
AU  - Sprecher, Tuvia
AU  - De Simone, Nicola
AU  - Stern, Nir
AU  - Stone, Nicholas C.
AU  - Trakhtenbrot, Benny
AU  - Vasilev, Mikhail
AU  - Watson, Jason J.
AU  - Zappon, Francesco
TI  - The scientific payload of the Ultraviolet Transient Astronomy Satellite (ULTRASAT)
IS  - arXiv:2208.00159
M1  - PUBDB-2024-00195
M1  - arXiv:2208.00159
PY  - 2023
N1  - Presented in the SPIE Astronomical Telescopes + Instrumentation 2022
AB  - The Ultraviolet Transient Astronomy Satellite (ULTRASAT) is a space-borne near UV telescope with an unprecedented large field of view (200 sq. deg.). The mission, led by the Weizmann Institute of Science and the Israel Space Agency in collaboration with DESY (Helmholtz association, Germany) and NASA (USA), is fully funded and expected to be launched to a geostationary transfer orbit in Q2/3 of 2025. With a grasp 300 times larger than GALEX, the most sensitive UV satellite to date, ULTRASAT will revolutionize our understanding of the hot transient universe, as well as of flaring galactic sources. We describe the mission payload, the optical design and the choice of materials allowing us to achieve a point spread function of  10arcsec across the FoV, and the detector assembly. We detail the mitigation techniques implemented to suppress out-of-band flux and reduce stray light, detector properties including measured quantum efficiency of scout (prototype) detectors, and expected performance (limiting magnitude) for various objects.
LB  - PUB:(DE-HGF)25
DO  - DOI:10.3204/PUBDB-2024-00195
UR  - https://bib-pubdb1.desy.de/record/601465
ER  -