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Gaia Photometric Data: DR1 results and DR2 expectations

Published online by Cambridge University Press:  07 March 2018

Dafydd Wyn Evans ,
Marco Riello ,
Francesca De Angeli ,
Giorgia Busso ,
Floor van Leeuwen ,
Laurent Eyer ,
Carme Jordi ,
Claus Fabricius ,
Josep Manel Carrasco  and
Michael Weiler
...Show all authors
Dafydd Wyn Evans
Affiliation:
Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK
Marco Riello
Affiliation:
Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK
Francesca De Angeli
Affiliation:
Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK
Giorgia Busso
Affiliation:
Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK
Floor van Leeuwen
Affiliation:
Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK
Laurent Eyer
Affiliation:
Department of Astronomy, University of Geneva, Ch. des Maillettes 51, 1290 Versoix, Switzerland
Carme Jordi
Affiliation:
Institut de Ciències del Cosmos, Universitat de Barcelona (IEEC-UB), Martí Franquès 1, 08028 Barcelona, Spain
Claus Fabricius
Affiliation:
Institut de Ciències del Cosmos, Universitat de Barcelona (IEEC-UB), Martí Franquès 1, 08028 Barcelona, Spain
Josep Manel Carrasco
Affiliation:
Institut de Ciències del Cosmos, Universitat de Barcelona (IEEC-UB), Martí Franquès 1, 08028 Barcelona, Spain
Michael Weiler
Affiliation:
Institut de Ciències del Cosmos, Universitat de Barcelona (IEEC-UB), Martí Franquès 1, 08028 Barcelona, Spain
Paolo Montegriffo
Affiliation:
INAF–Osservatorio Astronomico di Bologna, via Ranzani 1, 40127 Bologna, Italy
Carla Cacciari
Affiliation:
INAF–Osservatorio Astronomico di Bologna, via Ranzani 1, 40127 Bologna, Italy
Elena Pancino
Affiliation:
INAF–Osservatorio Astrofisico di Arcetri, Largo Enrico Fermi 5, 50125 Firenze, Italy email: dwe@ast.cam.ac.uk
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Abstract

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Gaia DR1 was released in September 2016 and contained a photometric catalogue of over 1 billion sources. At this stage, this only included mean G-band photometry and an estimate of the error. Even though this may sound limited in nature, interesting science can still be achieved with this data thanks to its quality. A high level overview of the photometric processing and some validation results will be presented. Additionally, epoch photometry in the G-band was released in Gaia DR1 for a small number of variable sources in the South Ecliptic Pole which covers the LMC. The second data release (Gaia DR2) is currently being prepared and, if available, some preliminary validation results will be presented. It is planned that this release will contain colour information in the form of integrated BP and RP photometry in addition to the latest G-band photometry.

Keywords

Astronomical data basesCataloguesSurveysInstrumentation:photometersTechniques:photometricGalaxy:general
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S330: Astrometry and Astrophysics in the Gaia sky , April 2017 , pp. 30 - 34
Copyright
Copyright © International Astronomical Union 2018 

References

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