We report the first intensity correlation measured with star light since Hanbury Brown and Twiss' historical experiments. The photon bunching g (2) (τ, r = 0), obtained in the photon counting regime, was measured for 3 bright stars, α Boo, α CMi, and β Gem. The light was collected at the focal plane of a 1 m optical telescope, was transported...
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December 21, 2017 (v1)Journal articleUploaded on: December 4, 2022
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September 2022 (v1)Journal article
Context. The Calern Asteroid Polarimetric Survey (CAPS), a collaboration between the INAF Astrophysical Observatory of Torino (Italy) and the Observatoire de la Côte d'Azur (Nice, France), has produced new asteroid polarimetric data for a number of years, and is one of the most important, currently active projects of asteroid polarimetry. Aims....
Uploaded on: December 4, 2022 -
December 26, 2016 (v1)Journal article
International audience
Uploaded on: December 3, 2022 -
2022 (v1)Journal article
This paper presents orbits and masses for 22 visual double stars, partly derived using their last observations made with the speckle camera PISCO. For 13 of them we have determined their first-time orbits. Masses were calculated from Hipparcos and Gaia parallaxes when available, and from dynamical parallaxes otherwise. They are compared with...
Uploaded on: December 4, 2022 -
February 27, 2020 (v1)Journal article
We present intensity interferometry of the luminous blue variable P Cyg in the light of its H$\alpha$ emission performed with 1 m-class telescopes. We compare the measured visibility points to synthesized interferometric data based on the CMFGEN physical modeling of a high-resolution spectrum of P Cyg recorded almost simultaneously with our...
Uploaded on: December 4, 2022