Performance modeling for the RAVEN Multi-Object Adaptive Optics demonstrator

Download
  1. Get@NRC: Performance modeling for the RAVEN Multi-Object Adaptive Optics demonstrator (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1086/665924
AuthorSearch for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for:
TypeArticle
Journal titlePublications of the Astronomical Society of the Pacific
ISSN0004-6280
Volume124
Issue915
Pages469484; # of pages: 16
AbstractRAVEN will be a Multi-Object Adaptive Optics (MOAO) technology and science demonstrator on the Subaru telescope. The baseline design calls for three natural guide star (NGS) wavefront sensors (WFS) and two science pickoff arms that will patrol a ~2′ diameter field of regard (FOR). Sky coverage is an important consideration, because RAVEN is both a technical and science demonstrator. Early-stage simulation of RAVEN's performance is critical in establishing that the key science requirement can be met. That is, 30% of the energy of an unresolved pointspread function (PSF) be ensquared within a 140 mas slit using existing WFS camera and deformable mirror (DM) technology. The system was simulated with two independent modeling tools, MAOS and OOMAO, which were in excellent agreement. It was established that RAVEN will be an order 10 × 10 adaptive optics (AO) system by examining the tradeoffs between performance, sky coverage, and WFS field of view. The 30% ensquared-energy (EE) requirement will be met with three NGSs and will exceed 40% if the Subaru Laser Guide Star (LGS) is used onaxis (assuming median image quality). This is also true for NGSs as faint as m R = 14:5. © 2012. The Astronomical Society of the Pacific. All rights reserved.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Herzberg Institute of Astrophysics (HIA-IHA)
Peer reviewedYes
NPARC number21269321
Export citationExport as RIS
Report a correctionReport a correction
Record identifierb4a77a6b-b115-429f-8f6e-ee45f267ec03
Record created2013-12-12
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)