Multi-Object Adaptive Optics On-sky Results with RAVEN

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2014

Autores

Lardiere, O (Autor) Outra; Andersen, D (Autor) Outra; Blian, C (Autor) Outra; Bradley, C (Autor) Outra; Gamroth, D (Autor) Outra; Jackson, K (Autor) Outra; Lach, P (Autor) Outra; Nash, R (Autor) Outra; Venn, K (Autor) Outra; Veran, JP (Autor) Outra; Correia, C (Autor) FCUP; Oya, S (Autor) Outra; Hayano, Y (Autor) Outra; Terada, H (Autor) Outra; Ono, Y (Autor) Outra; Akiyama, M (Autor) Outra

Ata de Conferência Internacional

Título: ADAPTIVE OPTICS SYSTEMS IV

Conference on Adaptive Optics Systems IV

Montreal, CANADA, JUN 22-27, 2014

Indexação

ISI Web of Knowledge - 18 Citações

Scopus - 17 Citações

Outras Informações

ID Authenticus: P-00A-630

DOI: 10.1117/12.2055480

Abstract (EN): Raven is a Multi Object Adaptive Optics (MOAO) technical and science demonstrator which had its first light at the Subaru telescope on May 13-14, 2014. Raven was built and tested at the University of Victoria AO Lab before shipping to Hawai`i. Raven includes three open loop wavefront sensors (WFSs), a central laser guide star WFS, and two independent science channels feeding light to the Subaru IRCS spectrograph. Raven supports different kinds of AO correction: SCAO, open-loop GLAO and MOAO. The MOAO mode can use different tomographic reconstructors, such as Learn-&-Apply or a model-based reconstructor. This paper presents the latest results obtained in the lab, which are consistent with simulated performance, as well as preliminary on-sky results, including echelle spectra from IRCS. Ensquared energy obtained on sky in 140mas slit is 17%, 30% and 41% for GLAO, MOAO and SCAO respectively. This result confirms that MOAO can provide a level of correction in between GLAO and SCAO, in any direction of the field of regard, regardless of the science target brightness.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 14