Gaia Data Release 1

The photometric data

¹ Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK
e-mail: fvl@ast.cam.ac.uk
² INAF–Osservatorio Astronomico di Bologna, via Ranzani 1, 40127 Bologna, Italy
³ INAF–Osservatorio Astrofisico di Arcetri, Largo Enrico Fermi 5, 50125 Firenze, Italy
⁴ Institut de Ciències del Cosmos, Universitat de Barcelona (IEEC-UB), Martí Franquès 1, 08028 Barcelona, Spain
⁵ Leiden Observatory, Leiden University, Niels Bohrweg 2, 2333 CA Leiden, The Netherlands
⁶ STFC, Rutherford Appleton Laboratory, Harwell, Didcot, OX11 0QX, UK
⁷ Institute for Astronomy, Royal Observatory, University of Edinburgh, Blackford Hill, Edinburgh EH9 3HJ, UK
⁸ Department of Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH, UK
⁹ INAF–Osservatorio Astronomico di Roma, via di Frascati 33, 00078 Monte Porzio Catone (Roma), Italy
¹⁰ INAF–Osservatorio Astronomico di Teramo, via Mentore Maggini, 64100 Teramo, Italy
¹¹ INAF–Osservatorio astronomico di Padova, Vicolo Osservatorio 5, 35122 Padova, Italy
¹² Department of Astronomy, University of Geneva, Chemin des Maillettes 51, 1290 Versoix, Switzerland
¹³ Laboratoire d’astrophysique de Bordeaux, Université de Bordeaux, CNRS, B18N, allée Geoffroy Saint-Hilaire, 33615 Pessac, France
¹⁴ Department of Astrophysics/IMAPP, Radboud University Nijmegen, PO Box 9010, 6500 GL Nijmegen, The Netherlands
¹⁵ Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, 2100 Copenhagen Ø, Denmark
¹⁶ Centre for Electronic Imaging, Department of Physical Sciences, The Open University, Walton Hall, MK7 6 AA Milton Keynes, UK
¹⁷ Serco Gestión de Negocios for ESA/ESAC, Camino bajo del Castillo, s/n, Urbanizacion Villafranca del Castillo, Villanueva de la Cañada, 28692 Madrid, Spain
¹⁸ Kavli Institute for Cosmology, University of Cambridge, Madingley Road, Cambride CB3 0HA, UK
¹⁹ CENTRA, Universidade de Lisboa, FCUL, Campo Grande, Edif. C8, 1749-016 Lisboa, Portugal
²⁰ ASI Science Data Center, via del Politecnico SNC, 00133 Roma, Italy
²¹ Kapteyn Astronomical Institute, University of Groningen, Landleven 12, 9747 AD Groningen, The Netherlands
²² Department of Physics and Astronomy, Notre Dame University, Louaize, PO Box 72, Zouk Mikaël, Lebanon
²³ Dipartimento di Fisica, Università di Roma Tor Vergata, via della Ricerca Scientifica 1, 00133 Rome, Italy
²⁴ Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland

Received: 15 November 2016
Accepted: 5 December 2016

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.