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Investigating Mono- and Quadrupole Gravitational Light Deflection by Jupiter

Ludl, Adriaan-Alexander LU (2011) In Lund Observatory Examensarbeten ASTK01 20111
Lund Observatory
Abstract
Gravitational light deflection in the Solar System can be detected by high precision astrometric measurements. We discuss the parametrized post-Newtonian framework and the comparison of metric theories of gravity. At the precision of a few micro-arcseconds, Gaia data will permit tests of the PPN parameters beta and gamma and to distinguish monopole and quadrupole gravitational light deflection. Accounting for relativistic effects is necessary to achieve the aimed for precision. The theoretical formulation of light deflection is discussed. We deduce an expression for the source direction derivatives required by the AGIS scheme in a simplified relativistic model. This model accounting for monopole and
quadrupole deflection terms has been... (More)
Gravitational light deflection in the Solar System can be detected by high precision astrometric measurements. We discuss the parametrized post-Newtonian framework and the comparison of metric theories of gravity. At the precision of a few micro-arcseconds, Gaia data will permit tests of the PPN parameters beta and gamma and to distinguish monopole and quadrupole gravitational light deflection. Accounting for relativistic effects is necessary to achieve the aimed for precision. The theoretical formulation of light deflection is discussed. We deduce an expression for the source direction derivatives required by the AGIS scheme in a simplified relativistic model. This model accounting for monopole and
quadrupole deflection terms has been implemented in AGISLab. We have validated the implementation and maintain convergence of the astrometric solution for Gaia. (Less)
Please use this url to cite or link to this publication:
author
Ludl, Adriaan-Alexander LU
supervisor
organization
course
ASTK01 20111
year
type
M2 - Bachelor Degree
subject
publication/series
Lund Observatory Examensarbeten
report number
2011-EXA57
language
English
id
2158511
date added to LUP
2011-09-16 12:36:18
date last changed
2011-09-16 12:36:18
@misc{2158511,
  abstract     = {Gravitational light deflection in the Solar System can be detected by high precision astrometric measurements. We discuss the parametrized post-Newtonian framework and the comparison of metric theories of gravity. At the precision of a few micro-arcseconds, Gaia data will permit tests of the PPN parameters beta and gamma and to distinguish monopole and quadrupole gravitational light deflection. Accounting for relativistic effects is necessary to achieve the aimed for precision. The theoretical formulation of light deflection is discussed. We deduce an expression for the source direction derivatives required by the AGIS scheme in a simplified relativistic model. This model accounting for monopole and
quadrupole deflection terms has been implemented in AGISLab. We have validated the implementation and maintain convergence of the astrometric solution for Gaia.},
  author       = {Ludl, Adriaan-Alexander},
  language     = {eng},
  note         = {Student Paper},
  series       = {Lund Observatory Examensarbeten},
  title        = {Investigating Mono- and Quadrupole Gravitational Light Deflection by Jupiter},
  year         = {2011},
}