Erlangen 2026 – scientific programme
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EP: Fachverband Extraterrestrische Physik
EP 10: Exoplanets and Astrobiology
EP 10.5: Talk
Friday, March 20, 2026, 10:15–10:30, KH 01.019
Detectability of Atmospheric Climate and Biosignatures with the Large Interferometer for Exoplanets (LIFE) for terrestrial-type Exoplanets — •John Lee Grenfell1,2, Benjamin Taysum1, Iris van Zelst1,3, Franz Schreier1,4, Hamish Innes1,2, Alexis Smith1, Szilard Csizmadia1, Nicolas Iro1, Sarah Rugheimer5,6, Thea Kozakis7, Eleonora Alei8, Lena Noack2, Tim Lichtenberg9, Sascha Quanz8,10, Konstantin Herbst1,11, Miriam Sinnhuber12, Andreas Bartenschlager12, Juan Cabrera1, and Heike Rauer2,13 — 1Inst. Space Science, DLR, Berlin, Germany — 2Inst. Geologische Wissenschaften, Freie Uni. Berlin, Germany — 3Centre for Astronomy and Astrophysics, TU Berlin, Germany — 4DLR-IMF, Oberpfaffenhofen, Germany — 5Dept Physics and Astronomy, York Uni., Canada — 6Inst. Astronomy, Uni. Edinburgh, Scotland, UK — 7IAA-CSIC, Granada, Spain — 8ETH-IPA, Zürich, Switzerland — 9Kapteyn Astron. Inst., Uni. Groningen, The Netherlands — 10ETH, Dept. Earth Plan. Sci., Zürich, Switzerland — 11PHAB, Uni. Oslo, Norway — 12KIT, Karlsruhe, Germany — 13DLR Markgrafenstr. 37, Berlin, Germany
We investigate the detectability of atmospheric biosignatures with the LIFE mission. Starting with the modern Earth we model the climate, photochemistry and spectra of Earth-like planets over a range of insolation, gravity, humidity, albedo, atmospheric mass and carbon dioxide abundances and investigate detectability of key atmospheric species by LIFE for Earth-like planets assumed to lie at 10pc for the LIFE (20-day viewing) baseline case.
Keywords: Earth-like, atmospheres, biosignatures, LIFE