14-m aperture deployable off-axis far-IR space telescope design for SALTUS observatory

TL;DR

SALTUS is a deployable 14-meter off-axis space telescope designed for far-infrared astrophysics, offering high sensitivity and resolution for studying cosmic origins, with a compact form factor suitable for launch and deployment.

Contribution

This paper introduces the innovative SALTUS design featuring a large inflatable off-axis primary mirror for far-IR space observations.

Findings

Large inflatable off-axis primary mirror enables high sensitivity.

Compact design allows easy launch and deployment.

Unprecedented far-IR spectral and spatial resolution.

Abstract

The Single Aperture Large Telescope for Universe Studies (SALTUS) is a deployable space telescope designed to provide the astrophysics community with an extremely large far-infrared (far-IR) space observatory to explore our cosmic origins. The SALTUS observatory can observe thousands of faint astrophysical targets, including the first galaxies, protoplanetary disks in various evolutionary states, and a wide variety of solar system objects. The SALTUS design architecture utilizes radiatively cooled, 14-m diameter unobscured aperture, and cryogenic instruments to enable both high spectral and spatial resolution at unprecedented sensitivity over a wavelength range largely unavailable to any existing ground or space observatories. The unique SALTUS optical design, utilizing a large inflatable off-axis primary mirror, provides superb sensitivity, angular resolution, and imaging performance at far-IR wavelengths over a wide +/-0.02 x 0.02 degree Field of View. SALTUS design, with its highly compact form factor, allows it to be readily stowed in available launch fairings and subsequently deployed in orbit.