Quantum Limits of Exoplanet Detection: Current Telescopes Have Room to Improve
By
Annika Salmi
Sesame, salt, and substance. A flagship bake.
Summary
This article discusses a new scientific study published in Physical Review A that explores the fundamental quantum limits of detecting exoplanets near their host stars. Researchers from the University of Arizona mapped out the theoretical physical limits of how close-in Earth-like exoplanets can be detected, finding that current telescopes are not yet hitting these hard physical limits. The work provides a roadmap for future telescope and instrument design to find the faintest, most Earth-like worlds.
Key quotes
· 3 pulledExoplanets, planets orbiting distant stars shine mostly by reflecting starlight, with a faint thermal glow of their own, leaving them extremely dim when contrasted against their hosts.
There's a hard physical limit on spotting a planet next to its blinding star. However, it turns out today's telescopes aren't hitting it.
New work maps out exactly how close in we could still detect the faint, Earth-like worlds we want to find the most.
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