%0 Journal Article
%T Coronagraphic observations of Fomalhaut at solar system scales
%A M. A. Kenworthy
%A T. Meshkat
%A S. P. Quanz
%A J. H. Girard
%A M. R. Meyer
%A M. Kasper
%J Physics
%D 2012
%I arXiv
%R 10.1088/0004-637X/764/1/7
%X We report on a search for low mass companions within 10 AU of the star Fomalhaut, using narrow band observations at 4.05 microns obtained with the Apodizing Phase Plate (APP) coronagraph on the VLT/NaCo. Our observations place a model dependent upper mass limit of 12-20 Jupiter masses from 4 to 10 AU, covering the semi-major axis search space between interferometric imaging measurements and other direct imaging non-detections. These observations rule out models where the large semi-major axis for the putative candidate companion Fomalhaut b is explained by dynamical scattering from a more massive companion in the inner stellar system, where such giant planets are thought to form.
%U http://arxiv.org/abs/1212.1459v1