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- Publications
- Influence
Gaia Data Release 2: The astrometric solution
- L. Lindegren, J. Hern'andez, +87 authors A. Vecchiato
- Physics
- 25 April 2018
Context. Gaia Data Release 2 (Gaia DR2) contains results for 1693 million sources in the magnitude range 3 to 21 based on observations collected by the European Space Agency Gaia satellite during the… Expand
Gaia Data Release 1 - Astrometry: one billion positions, two million proper motions and parallaxes
- L. Lindegren, U. Lammers, +80 authors W. O'Mullane
- Physics
- 14 September 2016
Gaia Data Release 1 (Gaia DR1) contains astrometric results for more than 1 billion stars brighter than magnitude 20.7 based on observations collected by the Gaia satellite during the first 14 months… Expand
A Practical Relativistic Model for Microarcsecond Astrometry in Space
- S. Klioner
- Physics
- 24 July 2001
We develop a practical model for relativistic reduction of positional observations with an accuracy of 1 μas, which is expected to be attained in future space astrometry missions. All relativistic… Expand
Gaia Data Release 1 - Reference frame and optical properties of ICRF sources
- F. Mignard, S. Klioner, +18 authors P. Charlot
- Physics
- 23 September 2016
Context. As part of the data processing for Gaia Data Release 1 (Gaia DR1) a special astrometric solution was computed, the so-called auxiliary quasar solution. This gives positions for selected… Expand
THE IAU 2000 RESOLUTIONS FOR ASTROMETRY CELESTIAL MECHANICS AND METROLOGY IN THE RELATIVISTIC FRAMEWORK: EXPLANATORY SUPPLEMENT
- M. Soffel, S. Klioner, +17 authors C. Xu
- Physics
- 17 March 2003
We discuss the IAU resolutions B1.3, B1.4, B1.5, and B1.9 that were adopted during the 24th General Assembly in Manchester, 2000, and provides details on and explanations for these resolutions. It is… Expand
Microarcsecond Astrometry in Space: Relativistic Effects and Reduction of Observations
- S. Klioner, S. Kopeikin
- Physics
- 1 August 1992
The framework of General Relativity is applied to the problem of reduction of high-precision astrometric observations of the order of 1 μarcsec. Such precision is expected to be attained in the not… Expand
Gaia Data Release 2: Observational Hertzsprung-Russell diagrams
- G. Collaboration, C. Babusiaux, +450 authors T. Zwitter
- Physics, Philosophy
- 25 April 2018
Context. Gaia Data Release 2 provides high-precision astrometry and three-band photometry for about 1.3 billion sources over the full sky. The precision, accuracy, and homogeneity of both astrometry… Expand
Analysis of astrometric catalogues with vector spherical harmonics
- F. Mignard, S. Klioner
- Physics
- 29 June 2012
Aims. We compare stellar catalogues with position and proper motion components using a decomposition on a set of orthogonal vector spherical harmonics. We aim to show the theoretical and practical… Expand
Gaia Data Release 2. The celestial reference frame (Gaia-CRF2)
- F. Mignard, S. Klioner, L. Lindegren, J. Hernández, U. Bastian, A. Bombrun
- Physics
- 25 April 2018
Context. The second release of Gaia data (Gaia DR2) contains the astrometric parameters for more than half a million quasars. This set defines a kinematically non-rotating reference frame in the… Expand
Light propagation in the gravitational field of moving bodies by means of Lorentz transformation: I. Mass monopoles moving with constant velocities
- S. Klioner
- Physics
- 29 January 2003
We show how to derive the equations of light propagation in the gravitational field of uniformly moving mass monopoles without formulating and integrating the differential equations of light… Expand