AGP (Astrometric Gravitation Probe) optical design report

Date Issued
2016
Author(s)
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•
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Lazzarini, Paolo
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Gallieni, Daniele
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Tintori, Matteo
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Anselmi, Alberto
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Cesare, Stefano
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DOI
Abstract
This paper describes the current opto-mechanical design of AGP, a mission designed for astrometric verification of General Relativity (GR) and competing gravitation theories by means of precise determination of light deflection on field stars, and of orbital parameters of selected Solar System objects. The optical concept includes a planar rear-view mirror for simultaneous imaging on the CCD mosaic detector of fields of view also from the direction opposite to the Sun, affected by negligible deflection, for the sake of real time calibration. The precision of astrometric measurements on individual stars will be of order of 1 mas, over two fields separated by few degrees around the Sun and observed simultaneously. We describe the optical design characteristics, with particular reference to manufacturing and tolerancing aspects, evidencing the preservation of very good imaging performance over the range of expected operating conditions.
Coverage
Optical and Infrared Interferometry and Imaging V
All editors
Malbet, Fabien; Creech-Eakman, Michelle J.; Tuthill, Peter G.
Series
Volume
9907
Start page
990742
Conferenece
Optical and Infrared Interferometry and Imaging V
Conferenece place
Edinburgh, United Kingdom
Conferenece date
26 June - 1 July 2016
Uri
Url
Issn Identifier
0277-786X
Ads BibCode
2016SPIE.9907E..42R
Rights
open.access
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