SAFARI-lite on SALTUS: taking FarIR spectroscopy of the obscured universe to the next level

Peter R. Roelfsema; Gert de Lange; Wouter Laauwen; Stephen Yates; Jose Silva; Jian-Rong Gao; Floris van der Tak; Erik van der Meer; Ramon Navarro; Jean-Marc Duval; Carole Tucker; Jochem Baselmans; Chris Walker

doi:10.1117/12.3020485

24 August 2024 SAFARI-lite on SALTUS: taking FarIR spectroscopy of the obscured universe to the next level

Peter R. Roelfsema, Gert de Lange, Wouter Laauwen, Stephen Yates, Jose Silva, Jian-Rong Gao, Floris van der Tak, Erik van der Meer, Ramon Navarro, Jean-Marc Duval, Carole Tucker, Jochem Baselmans, Chris Walker

Author Affiliations +

Proceedings Volume 13092, Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave; 130920F (2024) https://doi.org/10.1117/12.3020485
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

The SAFARI-lite instrument on the SALTUS mission with its large 14 meter diameter aperture, will present the astronomical community with an unprecedented observational capability providing extremely sensitive FarIR spectroscopy at high spatial resolution. With the combination of SALTUS’ large collecting area and an array of sensitive Kinetic Inductance Detectors (KIDs) in a compact grating spectrometer configuration the SAFARI-lite instrument will generate R~300 resolution 34-230 μm spectra reaching sensitivities of order 10-20 W/m2 (5σ/1 hour) – an observing capabilityy in the Far Infra-Red domain with both spatial resolution and sensitivity at levels comparable to JWST. The instrument will provide both point source optimized spectroscopy observing modes, as well as spectroscopic imaging for small fields. With this breakthrough capability astronomers will be able to fully address many fundamental astrophysical issues like understanding the evolution of galaxies over cosmic time, following the distribution and role of water in the evolution those galaxies, and unveiling the formation history of planetary systems in general and our own solar system in particular.

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Peter R. Roelfsema, Gert de Lange, Wouter Laauwen, Stephen Yates, Jose Silva, Jian-Rong Gao, Floris van der Tak, Erik van der Meer, Ramon Navarro, Jean-Marc Duval, Carole Tucker, Jochem Baselmans, and Chris Walker "SAFARI-lite on SALTUS: taking FarIR spectroscopy of the obscured universe to the next level", Proc. SPIE 13092, Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave, 130920F (24 August 2024); https://doi.org/10.1117/12.3020485

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