FIRI - a Far-Infrared Interferometer

TL;DR

FIRI is a proposed high-resolution FIR interferometer mission designed to explore cosmic evolution, star and planet formation, and potentially habitable Earth-like planets by imaging dust structures in planetary systems.

Contribution

It introduces a new mission concept for high-resolution FIR imaging spectroscopy to study cosmic and planetary phenomena, filling a key observational gap.

Findings

Enables detailed study of star and galaxy formation.

Allows observation of planetary system development.

Potential to identify Earth-like planets with life-harboring conditions.

Abstract

Half of the energy ever emitted by stars and accreting objects comes to us in the FIR waveband and has yet to be properly explored. We propose a powerful Far-InfraRed Interferometer mission, FIRI, to carry out high-resolution imaging spectroscopy in the FIR. This key observational capability is essential to reveal how gas and dust evolve into stars and planets, how the first luminous objects in the Universe ignited, how galaxies formed, and when super-massive black holes grew. FIRI will disentangle the cosmic histories of star formation and accretion onto black holes and will trace the assembly and evolution of quiescent galaxies like our Milky Way. Perhaps most importantly, FIRI will observe all stages of planetary system formation and recognise Earth-like planets that may harbour life, via its ability to image the dust structures in planetary systems. It will thus address directly questions fundamental to our understanding of how the Universe has developed and evolved - the very questions posed by ESA's Cosmic Vision.