Gaia data release 1, the photometric data
F. van Leeuwen, D.W. Evans, F. De Angeli, C. Jordi, G. Busso, C., Cacciari, M. Riello, E. Pancino, G. Altavilla, A.G.A. Brown, P. Burgess, J.M., Carrasco, G. Cocozza, S. Cowell, M. Davidson, F. De Luise, C. Fabricius, S., Galleti, G. Gilmore, G. Giuffrida, N.C. Hambly
TL;DR
This paper describes the Gaia DR1 photometric data, detailing its calibration, properties, and relation to other systems, highlighting its milli-magnitude precision and potential for future improvements.
Contribution
It provides a comprehensive overview of Gaia DR1 photometry, including calibration strategies, data characteristics, and cross-system relations, which were not previously documented.
Findings
Photometry precision at milli-magnitude level
Relations established with other broadband systems
Potential for further accuracy improvements
Abstract
Context. This paper presents an overview of the photometric data that are part of the first Gaia data release. Aims. The principles of the processing and the main characteristics of the Gaia photometric data are presented. Methods. The calibration strategy is outlined briefly and the main properties of the resulting photometry are presented. Results. Relations with other broadband photometric systems are provided. The overall precision for the Gaia photometry is shown to be at the milli-magnitude level and has a clear potential to improve further in future releases.
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Taxonomy
TopicsStellar, planetary, and galactic studies · Scientific Research and Discoveries · Cosmology and Gravitation Theories