In a discovery that’s fit for a movie, Northwestern University astronomers have directly imaged a Tatooine-like exoplanet, orbiting two suns.
Gemini Planet Imager
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
HD 143811 AB b: A Directly Imaged Planet Orbiting a Spectroscopic Binary in Sco-Cen
We present confirmation of HD 143811 AB b, a substellar companion to spectroscopic binary HD 143811 AB through direct imaging with the Gemini Planet Imager (GPI) and Keck NIRC2.
![HCI directly images exoplanetary systems. (a) Preprocessed exposure, where star light dominates the entire field of view. (b) Originally buried in (a), four exoplanets exist around star HR 8799 in total intensity after postprocessing (e.g., [66]). (c) Spirals around star MWC 758 in polarized light. Note: The units are detector count s−1 pixel−1 , and central regions with 8 pixel radii (1 pixel = 12.25 mas; [34]) are blocked by coronagraph and thus inaccessible. (d) Preprocessed 1024 × 1024 pixel reference image without target disk. (e) Cropped to central 256 × 256 pixel area. (f) Preprocessed reference data mapped to linear space. -- astro-ph.EP](https://i0.wp.com/astrobiology.com/wp-content/uploads/2025/06/POLARIS-A-High-contrast.png?resize=1200%2C717&ssl=1)
Posted inExoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
POLARIS: A High-contrast Polarimetric Imaging Benchmark Dataset for Exoplanetary Disk Representation Learning
With over 1,000,000 images from more than 10,000 exposures using state-of-the-art high-contrast imagers (e.g., Gemini Planet Imager, VLT/SPHERE) in the search for exoplanets, can artificial intelligence (AI) serve as a […]
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Gas Giants, Habitable Zones, Imaging & Spectroscopy, Status Report, Water/Hycean Worlds & Oceanography
Estimating Atmospheric Wind Speeds From Gemini Planet Imager Adaptive Optic Telemetry
The Earth’s atmosphere is comprised of turbulent layers that result in speckled and blurry images from ground-based visible and infrared observations. Adaptive Optics (AO) systems are employed to measure the […]
Posted inAI - Data - Apps - Cybernetics, Astronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Octofitter: Fast, Flexible, and Accurate Orbit Modelling to Detect Exoplanets
As next-generation imaging instruments and interferometers search for planets closer to their stars, they must contend with increasing orbital motion and longer integration times. These compounding effects make it difficult […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets
The Gemini Planet Imager: First Light
The Gemini Planet Imager (GPI) is a dedicated facility for directly imaging and spectroscopically characterizing extrasolar planets. It combines a very high-order adaptive optics system, a diffraction-suppressing coronagraph, and an […]