Calibrating the Non-Common Path Aberrations on the MOAO system RAVEN and first science results using RAVEN

• Type: Article in International Conference Proceedings Book
• Date: 2015

Authors

Lamb, M (Author) Other; Andersen, DR (Author) Other; Véran, JP (Author) Other; Correia, C (Author) Other; Lardière, O (Author) Other

Conference proceedings International

Title: Adaptive Optics for Extremely Large Telescopes 4 - Conference Proceedings

4th Adaptive Optics for Extremely Large Telescopes, AO4ELT 2015

26 October 2015 through 30 October 2015

Indexing

Scopus - 2 Citations

Other information

Authenticus ID: P-00N-R6C

DOI: 10.20353/k3t4cp1131535

Abstract (EN): Contemporary AO systems, such as the Multi-Object Adaptive Optics system (MOAO) RAVEN currently associated with the Subaru Telescope, can suffer from significant Non-Common Path Aberrations (NCPA). These errors ultimately affect image quality and arise from optical path differences between the wavefront sensor (WFS) path and the science path. A typical correction of NCPA involves estimating the aberration phase and correcting the system with an offset on the deformable mirror (DM). We summarize two methods used to correct for NCPA on an experimental bench. We also successfully calibrate the NCPA on RAVEN using one of these methods. Finally, we report on some first science results with RAVEN, obtained after NCPA correction.

Language: English

Type (Professor's evaluation): Scientific