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13 March 2024 Precision astrometry with extended path intensity correlation and ultrafast photon detectors
Masha Baryakhtar
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Proceedings Volume PC12911, Quantum Computing, Communication, and Simulation IV; PC1291107 (2024) https://doi.org/10.1117/12.3009785
Event: SPIE Quantum West, 2024, San Francisco, California, United States
Abstract
I will present a proposal for a modification to optical intensity interferometers that allows for sub-microarcsecond astrometry at angular separations as large as several arcseconds. The modification introduces an additional, adjustable path length into the optics, which creates a primary interference fringe for widely separated sources. Combined with recent technological advances in spectroscopy and ultrafast single-photon detection, this design could allow for unprecedented precision in angular resolution of stars. Promising applications include characterization of binary-orbits and stellar properties, exoplanet detection, and Galactic acceleration measurements.
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Masha Baryakhtar "Precision astrometry with extended path intensity correlation and ultrafast photon detectors", Proc. SPIE PC12911, Quantum Computing, Communication, and Simulation IV, PC1291107 (13 March 2024); https://doi.org/10.1117/12.3009785
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KEYWORDS
Astrometry
Photodetectors
Ultrafast phenomena
Single photon detectors
Spectroscopy
Exoplanetary science
Optical gratings
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