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4 papers · 2 filters
Experimental validation of active control of low-order aberrations with a Zernike sensor through a Lyot coronagraph
Raphaël Pourcelot, Mamadou N'Diaye, Emiel H. Por +11
Future large segmented space telescopes and their coronagraphic instruments are expected to provide the resolution and sensitivity to observe Earth-like planets with a 10^10 contra…
Gaia Photometric Science Alerts
S. T. Hodgkin, D. L. Harrison, E. Breedt +108
Since July 2014, the Gaia mission has been engaged in a high-spatial-resolution, time-resolved, precise, accurate astrometric, and photometric survey of the entire sky. Aims: We pr…
Using collimated CZTI as all sky X-ray detector based on Earth Occultation Technique
Akshat Singhal, Rahul Srinivasan, Varun Bhalerao +3
All-sky monitors can measure the fluxes of astrophysical sources by measuring the changes in observed counts as the source is occulted by the Earth. Such measurements have typicall…
I3T: Intensity Interferometry Imaging Telescope
Pierre-Marie Gori, Farrokh Vakili, Jean-Pierre Rivet +6
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, base…