A public code for astrometric microlensing with contour integration
V. Bozza, Elahe Khalouei, E. Bachelet
Abstract
ABSTRACT We present the first public code for the calculation of the astrometric centroid shift occurring during microlensing events. The computation is based on the contour integration scheme and covers single and binary lensing of finite sources with arbitrary limb darkening profiles. This allows for general detailed investigations of the impact of finite source size in astrometric binary microlensing. The new code is embedded in version 3.0 of vbbinarylensing, which offers a powerful computational tool for extensive studies of microlensing data from current surveys and future space missions.
Topics & Concepts
Gravitational microlensingCentroidBinary numberCode (set theory)AstrometryComputer scienceComputationPhysicsAstronomyArtificial intelligenceAlgorithmGalaxyComputer visionProgramming languageMathematicsStarsArithmeticSet (abstract data type)Stellar, planetary, and galactic studiesAdaptive optics and wavefront sensingAstronomy and Astrophysical Research