Rocky exoplanet characterization and atmospheres

L. Kaltenegger*, Y. Miguel, S. Rugheimer

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    10 Citations (Scopus)

    Abstract

    A decade of exoplanet search has led to surprising discoveries, from giant planets close to their star, to planets orbiting two stars, all the way to the first extremely hot, rocky worlds with potentially permanent lava on their surfaces due to the star's proximity. Observation techniques have reached the sensitivity to explore the chemical composition of the atmospheres as well as physical structure of some detected gas planets and detect planets of less than 10 Earth masses (MEarth), the so-called super-Earths, among them some that may potentially be habitable. Three confirmed non-transiting planets, and several transiting Kepler planetary candidates, orbit in the habitable zone (HZ) of their host star. The detection and characterization of rocky and potentially Earth-like planets is approaching rapidly with future ground and space missions that can explore the planetary environments by analysing their atmosphere remotely. This paper discusses how to characterize a rocky exoplanet remotely.

    Original languageEnglish
    Pages (from-to)297-307
    Number of pages11
    JournalInternational Journal of Astrobiology
    Volume11
    Issue number4
    DOIs
    Publication statusPublished - Oct 2012

    Keywords

    • Atmospheric biosignatures
    • Earth
    • Exoplanets
    • Habitable Zone
    • Super-Earth

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