Fulltext

Successes and challenges of the APP Coronagraph

Kenworthy, Matthew A. ; Quanz, Sascha ; Otten, Gilles ; Meshkat, Tiffany ; Codona, Johanan ; Snik, Frans ; Meyer, Michael E. ; Kasper, Markus ; Girard, Julien

In: Proceedings of the International Astronomical Union, 2013, vol. 8, no. S299, p. 40-41

Aggiungi alla tua lista
    Titre
    • Successes and challenges of the APP Coronagraph
    Auteur
    • Kenworthy, Matthew A.. Leiden Observatory, Leiden University, P.O. Box 9513, 2300 RA Leiden, The Netherlands email: kenworthy@strw.leidenuniv.nl
    • Quanz, Sascha. Institute for Astronomy, ETH Zurich, CH-8093 Zurich, Switzerland
    • Otten, Gilles. Leiden Observatory, Leiden University, P.O. Box 9513, 2300 RA Leiden, The Netherlands email: kenworthy@strw.leidenuniv.nl
    • Meshkat, Tiffany. Leiden Observatory, Leiden University, P.O. Box 9513, 2300 RA Leiden, The Netherlands email: kenworthy@strw.leidenuniv.nl
    • Codona, Johanan. Steward Observatory, 933 N. Cherry Avenue, Tucson, AZ 85721
    • Snik, Frans. Leiden Observatory, Leiden University, P.O. Box 9513, 2300 RA Leiden, The Netherlands email: kenworthy@strw.leidenuniv.nl
    • Meyer, Michael E.. Institute for Astronomy, ETH Zurich, CH-8093 Zurich, Switzerland
    • Kasper, Markus. European Southern Observatory, Garching bei Munchen, Germany
    • Girard, Julien. European Southern Observatory, Vitacura, Cassilla 19001, Santiago, Chile
    Type de document
    • Postprint
    Langue
    • Inglese
    Publié dans
    • Proceedings of the International Astronomical Union, 2013, vol. 8, no. S299, p. 40-41. Cambridge University Press
    Autre version électronique
    Identifiant OAI-PMH
    • oai:doc.rero.ch:300982
    Summary
    The Apodizing Phase Plate (APP) coronagraph has been used to image the exoplanet β Pictoris b and the protoplanet candidate around HD 100546, and is currently in use in surveys with NaCo at the VLT. Its success is due to its tolerance to tip-tilt pointing errors in current AO systems, which degrade the performance of nearly all other coronagraphs. Currently the sensitivity of the APP is limited by non-common path errors in the science camera systems and by its chromatic behaviour. We present the achromatized Vector APP coronagraph and address how we will measure and minimise non-common path errors with Focal Plane Wavefront Sensing algorithms