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Sponsored Artificial Intelligence: A Modern Approach, Global Edition Artificial Intelligence: A Modern Approach, Global Edition

Author

M. Fitzgerald

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Aug 2026

FIRST-PL: on-sky retrieval of Humu’s (Altair) spin axis using a photonic lantern on Subaru Telescope

The FIRST-PL instrument on the Subaru Telescope enables a new observational capability: measuring stellar spin orientations for indirect constraints on exoplanet orbital geometry. We describe the instrument and demonstrate data reduction techniques to measure the spin orientation of Humu (Altair), whose apparent size i...

A. Walk, S. Vievard, O. Guyon et al. · 2 citations
Aug 2026

Simulation and development of astrophotonic H-band nulling beam combiner for the CHARA Array

Nulling interferometry is a promising method for direct detection and characterization of faint stellar companions such as exoplanets and faint binary sources. The dominant constraint on instrument performance is instability noise from vibrations, thermal expansions, and other systematic sources. Photonic instruments h...

Samantha G. Morrison, P. Gatkine, M. Fitzgerald · 0 citations

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