Optical long baseline intensity interferometry: prospects for stellar physics

Abstract

More than sixty years after the first intensity correlation experiments by Hanbury Brown and Twiss, there is renewed interest for intensity interferometry techniques for high angular resolution studies of celestial sources. We report on a successful attempt to measure the bunching peak in the intensity correlation function for bright stellar sources with 1 meter telescopes (I2C project). We propose further improvements of our preliminary experiments of spatial interferometry between two 1 m telescopes, and discuss the possibility to export our method to existing large arrays of telescopes.

14 pages, 3 figures

References in corpus (9)

• Spectral and spatial imaging of the Be+sdO binary phi Persei
• Optical Intensity Interferometry with Atmospheric Cherenkov Telescope Arrays
• Temporal intensity interferometry: photon bunching on three bright stars
• Measuring Temporal Photon Bunching in Blackbody Radiation
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• Intensity Interferometry with Aqueye+ and Iqueye in Asiago
• Assessing the quality of restored images in optical long-baseline interferometry
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Cited by in corpus (7)

• Intensity interferometry of P Cygni in the H$\alpha$ emission line: towards distance calibration of LBV supergiant stars
• Combined spectroscopy and intensity interferometry to determine the distances of the blue supergiants P Cygni and Rigel
• Observations with the Southern Connecticut Stellar Interferometer. I. Instrument Description and First Results
• Field and intensity correlations: the Siegert relation from stars to quantum emitters
• Generation of N00N-like interferences with two thermal light sources
• Optical intensity interferometry lab tests in preparation of stellar diameter measurements at IACTs at GHz photon rates
• Stellar intensity interferometry in the photon-counting regime