Gaia Data Release 1

BABrown, AGAAVA. VallenariTPT. PrustiDBde Bruijne, JHJFMF. Mignard

Leiden University · Osservatorio Astronomico di Padova · +4 more institutions

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Abstract

Context. At about 1000 days after the launch of Gaia we present the first Gaia data release, Gaia DR1, consisting of astrometry and photometry for over 1 billion sources brighter than magnitude 20.7. Aims. A summary of Gaia DR1 is presented along with illustrations of the scientific quality of the data, followed by a discussion of the limitations due to the preliminary nature of this release. Methods. The raw data collected by Gaia during the first 14 months of the mission have been processed by the Gaia Data Processing and Analysis Consortium (DPAC) and turned into an astrometric and photometric catalogue. Results. Gaia DR1 consists of three components: a primary astrometric data set which contains the…

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Topics & keywords

Keywords
  • Astrometry
  • RR Lyrae variable
  • Parallax
  • Physics
  • Photometry (optics)
  • Stars
  • Astronomy
  • Astrophysics
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