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- S. Mereghetti3 profiles44 · h 61
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- Osservatorio astronomico di BolognaIT176 papers
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31 papers · 1 filter
W-band prototype of platelet feed-horn array for CMB polarisation measurements
Francesco Del Torto, Marco Bersanelli, Francesco Cavaliere +10
We present the design and performance of a 2x2 prototype array of corrugated feed-horns in W-band. The module is fabricated using a so-called "platelet" technique by milling Alumin…
Systematic error mitigation in multiple field astrometry
Mario Gai
Combination of more than two fields provides constraints on the systematic error of simultaneous observations. The concept is investigated in the context of the Gravitation Astrome…
A dedicated tool for a full 3D Cn2 investigation
Franck Lascaux, Elena Masciadri, Susanna Hagelin
We present in this study a mapping of the optical turbulence (OT) above different astronomical sites. The mesoscale model Meso-NH was used together with the Astro-Meso-Nh package a…
Gaia: unraveling the chemical and dinamical history of our Galaxy
E. Pancino
The Gaia astrometric mission - the Hipparcos successor - is described in some detail, with its three instruments: the two (spectro)photometers (BP and RP) covering the range 330-10…
An insight into the flux calibration of Gaia G-band images and BP/RP spectrophotometry
E. Pancino
The Gaia mission is described, focussing on those technical aspects that are necessary to understand the details of its external (absolute) flux calibration. On board of Gaia there…
X-ray Polarimetry: a new window on the high energy sky
Ronaldo Bellazzini, Fabio Muleri
Polarimetry is widely considered a powerful observational technique in X-ray astronomy, useful to enhance our understanding of the emission mechanisms, geometry and magnetic field…