Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/24178
DC Field | Value | Language |
---|---|---|
dc.contributor.author | ESPOSITO, Simone | en_US |
dc.contributor.author | AGAPITO, GUIDO | en_US |
dc.contributor.author | Antichi, J. | en_US |
dc.contributor.author | Bonanno, A. | en_US |
dc.contributor.author | CARBONARO, LUCA | en_US |
dc.contributor.author | Giordano, C. | en_US |
dc.contributor.author | Spanò, P. | en_US |
dc.date.accessioned | 2020-04-22T17:07:00Z | - |
dc.date.available | 2020-04-22T17:07:00Z | - |
dc.date.issued | 2015 | en_US |
dc.identifier.issn | 0037-8720 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/24178 | - |
dc.description.abstract | We report on the natural guide star (NGS) wavefront sensors (WFS) module for MAORY, the multi-cojugate adaptive optics (MCAO) system for the ESO E-ELT. Three low-order, near-infrared (H-band), Shack-Hartmann sensors provide fast acquisition of the first 5 modes (tip, tilt, focus, astigmatism) on 3 natural guide stars over a 160 arcsec field of view. Three moderate-order (20x20), visible (600-800 nm), pyramid WFSs provide the slow Truth sensing to correct LGS wavefront estimates of low-order modes. These sensors are mounted onto three R-theta stages to patrol the field of view. The module is also equipped with a retractable, on-axis, high-order (80x80), visible, pyramid WFS for the single-conjugate AO (SCAO) mode of MAORY and MICADO. The visible WFSs share the same 80x80 pyramid WFS design. This choice enables also a MCAO NGS capability. Simulations show that Strehl ratios (SR) over 40% are reached with MCAO and three, 2x2 sub-apertures, NIR low-order WFSs working with H-mag=20 reference stars. In SCAO mode, 90% SR for a 8mag stars with a contrast down to 10<SUP>-5</SUP>, and 45% SR for a 16mag star, are achieved. | en_US |
dc.language.iso | eng | en_US |
dc.title | NGS WFSs module for MAORY at E-ELT | en_US |
dc.type | Article | - |
dc.identifier.url | http://sait.oat.ts.astro.it/MSAIt860315/index.html | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 86 | en_US |
dc.relation.firstpage | 446 | en_US |
dc.type.referee | REF_3 | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | MEMORIE DELLA SOCIETA ASTRONOMICA ITALIANA | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2015MmSAI..86..446E | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegherò il file al passo 5-Carica) | en_US |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
item.cerifentitytype | Publications | - |
crisitem.journal.journalissn | 0037-8720 | - |
crisitem.journal.ance | E108779 | - |
crisitem.author.dept | O.A. Arcetri | - |
crisitem.author.dept | O.A. Arcetri | - |
crisitem.author.dept | O.A. Arcetri | - |
crisitem.author.orcid | 0000-0002-3114-677X | - |
crisitem.author.orcid | 0000-0002-6382-2613 | - |
crisitem.author.orcid | 0000-0003-1492-1591 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
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2015MmSAI..86..446E.pdf | PDF editoriale | 882.09 kB | Adobe PDF | View/Open |
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