Webb Telescope is powerful enough to see a variety of biosignatures in exoplanets, argues new paper universetoday arxiv
The search for biosignatures on exoplanets connects the fields of biology and biochemistry to astronomical observation, with the hope that we might detect evidence of active biological processes on worlds outside the solar system. Here we focus on a complementary aspect of exoplanet characterisation connecting astronomy to prebiotic chemistry: the search for molecules associated with the origin of life, prebiosignatures.
We consider prebiosignatures on five classes of terrestrial planet: an ocean planet, a volcanic planet, a post-impact planet, a super-Earth, and an early Earth analogue. Using a novel modelling and detection test pipeline, with simulated JWST noise, we find the detection thresholds of hydrogen cyanide , hydrogen sulfide , cyanoacetylene , ammonia , methane , acetylene , sulfur dioxide , nitric oxide , formaldehyde , and carbon monoxide in a variety of low mean molecular weight atmospheres.
France Dernières Nouvelles, France Actualités
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