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PCS -- A Roadmap for Exoearth Imaging with the ELT

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arxiv 2103.11196 v1 pith:HRW4CBYT submitted 2021-03-20 astro-ph.IM

Markus Kasper , Nelly Cerpa Urra , Prashant Pathak , Markus Bonse , Jalo Nousiainen , Byron Engler , Cédric Taïssir Heritier , Jens Kammerer
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Serban Leveratto Chang Rajani Paul Bristow Miska Le Louarn Pierre-Yves Madec Stefan Ströbele Christophe Verinaud Adrian Glauser Sascha P. Quanz Tapio Helin Christoph Keller Frans Snik Anthony Boccaletti Gaël Chauvin David Mouillet Caroline Kulcsár Henri-François Raynaud
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The Planetary Camera and Spectrograph (PCS) for the Extremely Large Telescope (ELT) will be dedicated to detecting and characterising nearby exoplanets with sizes from sub-Neptune to Earth-size in the neighbourhood of the Sun. This goal is achieved by a combination of eXtreme Adaptive Optics (XAO), coronagraphy and spectroscopy. PCS will allow us not only to take images, but also to look for biosignatures such as molecular oxygen in the exoplanets' atmospheres. This article describes the PCS primary science goals, the instrument concept and the research and development activities that will be carried out over the coming years.

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Cited by 4 Pith papers

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  2. Characterizing the oxidation state of rocky exoplanets with the Large Interferometer for Exoplanets (LIFE)

    astro-ph.EP 2026-07 conditional novelty 5.5 of 10

    LIFE baseline mid-IR observations of Earth-sized planets at 10 pc can retrieve CO2, CH4, and NH3 well enough to distinguish mantle redox states from IW-6 to IW+6 under the paper's modeling assumptions.

  3. Tolerancing the PIAA-ZWFS: a practical and robust wavefront sensor that approaches the fundamental sensitivity limit

    astro-ph.IM 2026-07 conditional novelty 5.0 of 10

    Typical manufacturing and alignment errors do not significantly degrade the PIAA-ZWFS's wavefront sensing performance, preserving a large margin over a standard ZWFS.

  4. Searching for Habitable Exoplanets with Relative Astrometry (SHERA). I. The Case for Searching for Planets in Binary Star Systems

    astro-ph.EP 2026-08 conditional novelty 4.0 of 10

    SHERA is a proposed Small Explorer astrometry mission that could detect rocky habitable-zone planets around 14 nearby Sun-like stars in binary systems using microarcsecond relative astrometry.

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