I3T: Intensity Interferometry Imaging Telescope
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I3T : Intensity Interferometry Imaging Telescope. / Gori, Pierre Marie; Vakili, Farrokh; Rivet, Jean Pierre; Guerin, William; Hugbart, Mathilde; Chiavassa, Andrea; Vakili, Adrien; Kaiser, Robin; Labeyrie, Guillaume.
In: Monthly Notices of the Royal Astronomical Society, Vol. 505, No. 2, 2021, p. 2328-2335.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - I3T
T2 - Intensity Interferometry Imaging Telescope
AU - Gori, Pierre Marie
AU - Vakili, Farrokh
AU - Rivet, Jean Pierre
AU - Guerin, William
AU - Hugbart, Mathilde
AU - Chiavassa, Andrea
AU - Vakili, Adrien
AU - Kaiser, Robin
AU - Labeyrie, Guillaume
N1 - Funding Information: This work has been supported by the CNRS Institute des Sciences de l?Univers, INSU?s French CTA-section conducted by J?urgen Kn?odlseder from IRAP/Toulouse. We acknowledge funding from the French National Research Agency (Project I2C, ANR20-CE31-0003) and R?egion PACA (project I2C). PMG is indebted to E Taffin de Givenchy and F Th?evenin for their support of the PhD program at UCA, Nice, France. Publisher Copyright: © 2021 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society.
PY - 2021
Y1 - 2021
N2 - We propose a new approach, based on the Hanbury Brown and Twiss intensity interferometry, to transform a Cherenkov telescope to its equivalent optical telescope. We show that, based on the use of photonics components borrowed from quantum-optical applications, we can recover spatial details of the observed source down to the diffraction limit of the Cherenkov telescope, set by its diameter at the mean wavelength of observation. For this, we propose to apply aperture synthesis techniques from pairwise and triple correlation of sub-pupil intensities, in order to reconstruct the image of a celestial source from its Fourier moduli and phase information, despite atmospheric turbulence. We examine the sensitivity of the method, i.e. limiting magnitude, and its implementation on existing or future high energy arrays of Cherenkov telescopes. We show that despite its poor optical quality compared to extremely large optical telescopes under construction, a Cherenkov telescope can provide diffraction limited imaging of celestial sources, in particular at the visible, down to violet wavelengths.
AB - We propose a new approach, based on the Hanbury Brown and Twiss intensity interferometry, to transform a Cherenkov telescope to its equivalent optical telescope. We show that, based on the use of photonics components borrowed from quantum-optical applications, we can recover spatial details of the observed source down to the diffraction limit of the Cherenkov telescope, set by its diameter at the mean wavelength of observation. For this, we propose to apply aperture synthesis techniques from pairwise and triple correlation of sub-pupil intensities, in order to reconstruct the image of a celestial source from its Fourier moduli and phase information, despite atmospheric turbulence. We examine the sensitivity of the method, i.e. limiting magnitude, and its implementation on existing or future high energy arrays of Cherenkov telescopes. We show that despite its poor optical quality compared to extremely large optical telescopes under construction, a Cherenkov telescope can provide diffraction limited imaging of celestial sources, in particular at the visible, down to violet wavelengths.
KW - instrumentation: high angular resolution
KW - instrumentation: interferometers
KW - stars: imaging
KW - telescopes
U2 - 10.1093/mnras/stab1424
DO - 10.1093/mnras/stab1424
M3 - Journal article
AN - SCOPUS:85128571835
VL - 505
SP - 2328
EP - 2335
JO - Royal Astronomical Society. Monthly Notices
JF - Royal Astronomical Society. Monthly Notices
SN - 0035-8711
IS - 2
ER -
ID: 306682133