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  1. OA@INAF
  2. PRODOTTI RICERCA INAF
  3. 3 CONTRIBUTI IN ATTI DI CONVEGNO (Proceedings)
  4. 3.01 Contributi in Atti di convegno
Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/29140
Title: Relativistic light tracing in the Gaia era
Authors: CROSTA, Mariateresa 
LATTANZI, Mario Gilberto 
VECCHIATO, Alberto 
de Felice, F.
Issue Date: 2018
Volume: The Fourteenth Marcel Grossmann Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics, and Relativistic Field Theories : Proceedings of the MG14 Meeting on General Relativity
Editors: Bianchi, Massimo; Jantzen, Robert T.; Ruffini, Remo
First Page: 3549
Abstract: This contribution presents the analytical solution of the inverse ray tracing problem for photons emitted by a star and collected by an observer located in the gravitational field of the Solar System. This solution has been conceived to suit the accuracy achievable by the ESA Gaia satellite (launched on December 19, 2013) consistently with the measurement protocol in General Relativity adopted within the RAMOD framework. Aim of this study is to provide a general relativistic tool for the science exploitation of such a revolutionary mission, whose main goal is to trace back star directions from within our local curved space-time, therefore providing a three-dimensional map of our Galaxy. The calculations are performed assuming that the massive bodies of the Solar System move uniformly and have monopole and quadrupole structures. The results are useful for a thorough comparison and cross-checking validation of what already exists in the field of Relativistic Astrometry. Moreover, such an analytical solutions can be extended to model other measurements that require the same order of accuracy as that expected for Gaia.
Conference Name: 14th Marcel Grossman Meeting on General Relativity
Conference Place: Roma, University "La Sapienza"
Conference Date: 12-18 July, 2015
URI: http://hdl.handle.net/20.500.12386/29140
URL: https://www.worldscientific.com/doi/abs/10.1142/9789813226609_0460
ISBN: 978-981-322-659-3
978-981-322-660-9
DOI: 10.1142/9789813226609_0460
Bibcode ADS: 2018mgm..conf.3549C
Fulltext: open
Appears in Collections:3.01 Contributi in Atti di convegno

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