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arXiv · 2610.18467

Ushering in high angular resolution observatories in the far-infrared: The case for a double-Fourier interferometer

C. S. Benson·M. Bonato·T. A. Davis·T. Essinger-Hileman·D. Farrah·W. Grainger·D. Leisawitz·H. Matsuo·B. Matthews·P. Pokorny·S. E. Ragan·B. V. Ricketti·G. Savini·J. P. Scott·L. D. Spencer·C. M. Urry·D. Wilner
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Abstract

A far-infrared (far-IR) interferometer from a space-based platform would bring about a transformational improvement in the spatial detail of astronomical observations that are inaccessible from ground-based observatories. This orders-of-magnitude improvement would significantly advance studies of newly formed and mature exoplanetary systems and their potential for supporting life, the earliest stages of star formation, and the evolution of galaxies up to the peak of the Universe's star formation activity and beyond. In this work, we discuss the potential for such an instrument and the science it enables in complement to current long-term plans of the global astronomical community and in preparation for the next generation of observatories. We also outline notable far-IR mission concepts, pathfinder instruments, and technology development platforms that have been studied and developed throughout the past few decades and briefly discuss key enabling technologies.

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C. S. Benson, M. Bonato, T. A. Davis, T. Essinger-Hileman, D. Farrah, W. Grainger, D. Leisawitz, H. Matsuo, B. Matthews, P. Pokorny, S. E. Ragan, B. V. Ricketti, G. Savini, J. P. Scott, L. D. Spencer, C. M. Urry, D. Wilner. 2026-10-13. Ushering in high angular resolution observatories in the far-infrared: The case for a double-Fourier interferometer. https://doi.org/10.5281/zenodo.23344049

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