Validation of a CCD cosmic ray event simulator against Gaia in-orbit data

Lionel Garcia; Thibaut Prod'homme; David Lucsanyi; Alex Short; Giovanni Santin; Marco Vuolo; Cian Crowley; Asier Abreu; Ralf Kholey; Frederic Lemmel; Hans Smit; Jos de Bruijne

doi:10.1117/12.2314090

16 July 2018 Validation of a CCD cosmic ray event simulator against Gaia in-orbit data

Lionel Garcia, Thibaut Prod'homme, David Lucsanyi, Alex Short, Giovanni Santin, Marco Vuolo, Cian Crowley, Asier Abreu, Ralf Kholey, Frederic Lemmel, Hans Smit, Jos de Bruijne

Author Affiliations +

Proceedings Volume 10709, High Energy, Optical, and Infrared Detectors for Astronomy VIII; 1070919 (2018) https://doi.org/10.1117/12.2314090
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

ESA’s astrometry mission Gaia was launched in 2013 to establish the most accurate and complete map of the Milky Way by measuring the distance, position, proper motion, and astrophysical characteristics of two billion stars. It contains the largest focal plane ever flown in space comprising 106 CCDs. To downlink to Earth only useful data, an on-board algorithm was designed to discriminate between e.g. stars and cosmics- ionizing tracks left by energetic particles. A cosmic ray event generation simulator was developed to train and optimize this on-board source detection algorithm. We can now validate this model against Gaia data.

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Lionel Garcia, Thibaut Prod'homme, David Lucsanyi, Alex Short, Giovanni Santin, Marco Vuolo, Cian Crowley, Asier Abreu, Ralf Kholey, Frederic Lemmel, Hans Smit, and Jos de Bruijne "Validation of a CCD cosmic ray event simulator against Gaia in-orbit data", Proc. SPIE 10709, High Energy, Optical, and Infrared Detectors for Astronomy VIII, 1070919 (16 July 2018); https://doi.org/10.1117/12.2314090

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