Gaia Early Data Release 3

Riello, M.; Angeli, F. De; Evans, D. W.; Montegriffo, P.; Carrasco, J. M.; Busso, G.; Palaversa, L.; Burgess, P. W.; Diener, C.; Davidson, M.; Rowell, N.; Fabricius, C.; Jordi, C.; Bellazzini, M.; Pancino, E.; Harrison, D. L.; Cacciari, C.; Leeuwen, F. van; Hambly, N. C.; Hodgkin, S. T.; Osborne, P.; Altavilla, G.; Barstow, M. A.; Brown, A. G. A.; Castellani, M.; Cowell, S.; Luise, F. De; Gilmore, G.; Giuffrida, G.; Hidalgo, S. L.; Holland, G.; Marinoni, S.; Pagani, C.; Piersimoni, A. M.; Pulone, L.; Ragaini, S.; Rainer, M.; Richards, P. J.; Sanna, N.; Walton, N. A.; Weiler, M.; Yoldas, A.

doi:10.1051/0004-6361/202039587

articleAstronomy and AstrophysicsDec 3, 2020BRONZE OA

Gaia Early Data Release 3

MRM. Riello FDF. De Angeli DWD. W. Evans PMP. Montegriffo JMJ. M. Carrasco

University of Cambridge · Osservatorio di Astrofisica e Scienza dello Spazio · +13 more institutions

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Abstract

Context. Gaia Early Data Release 3 ( Gaia EDR3) contains astrometry and photometry results for about 1.8 billion sources based on observations collected by the European Space Agency Gaia satellite during the first 34 months of its operational phase. Aims. In this paper, we focus on the photometric content, describing the input data, the algorithms, the processing, and the validation of the results. Particular attention is given to the quality of the data and to a number of features that users may need to take into account to make the best use of the Gaia EDR3 catalogue. Methods. The processing broadly followed the same procedure as for Gaia DR2, but with significant improvements in several aspects of the blue…

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Topics

Keywords

Photometry (optics)
Astrometry
Physics
Astrophysics
Magnitude (astronomy)
Astronomy
Remote sensing
Stars

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