Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/28191
DC Field | Value | Language |
---|---|---|
dc.contributor.author | LI CAUSI, Gianluca | en_US |
dc.contributor.author | STANGALINI, MARCO | en_US |
dc.contributor.author | ANTONIUCCI, Simone | en_US |
dc.contributor.author | PEDICHINI, Fernando | en_US |
dc.contributor.author | MATTIOLI, Massimiliano | en_US |
dc.contributor.author | TESTA, Vincenzo | en_US |
dc.contributor.author | PIAZZESI, ROBERTO | en_US |
dc.date.accessioned | 2020-11-06T14:09:20Z | - |
dc.date.available | 2020-11-06T14:09:20Z | - |
dc.date.issued | 2018 | en_US |
dc.identifier.isbn | 9781510619593 | en_US |
dc.identifier.isbn | 9781510619609 | en_US |
dc.identifier.issn | 0277-786X | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/28191 | - |
dc.description.abstract | We present the research and developement status of the Speckle-Free Angular Differential Imaging method (SFADI), that we developed for the SHARK-VIS high-contrast imager for the LBT telescope. The technique bases on the acquisition of kHz frame-rate image sequences, which we combine in post-processing after speckle identification and suppression in each frame. With respect to the standard angular differential imaging, this method reaches a much smoother residual background and hence higher detection contrast at a given signal-to-noise ratio. Furthermore, it can reveal faint extended sources around bright central stars, and can use de-rotated images as well as quick second-lasting sequences. We reached a contrast of around 1e-5 for integration times of the order of tens of minutes at 100 mas for a 5.7 magnitude star, as we demonstrated on both a real-sky acquisition and at the SHARK-VIS laboratory test bench. Such long sequences though produces a large amount of data (around a million frames every 15 minutes) that we manage to processed in a reasonable computation time with the described implementation scheme. | en_US |
dc.language.iso | eng | en_US |
dc.title | Fast cadence speckle-free high-contrast imaging: SFADI and SFI | en_US |
dc.type | Conference paper | - |
dc.identifier.doi | 10.1117/12.2312614 | en_US |
dc.identifier.scopus | 2-s2.0-85052660029 | en_US |
dc.identifier.isi | 000452819300090 | en_US |
dc.relation.medium | ELETTRONICO | en_US |
dc.relation.volume | 10703 | en_US |
dc.relation.firstpage | 107032U | en_US |
dc.type.referee | REF_0 | en_US |
dc.description.numberofauthors | 7 | en_US |
dc.description.international | no | en_US |
dc.contributor.country | ITA | en_US |
dc.relation.alleditors | Close, Laird M.; Schreiber, Laura; Schmidt, Dirk | en_US |
dc.relation.ispartofbook | Adaptive Optics Systems VI | en_US |
dc.relation.conferencename | Adaptive Optics Systems VI | en_US |
dc.relation.conferenceplace | Austin, Texas, United States | en_US |
dc.relation.conferencedate | 10-15 June, 2018 | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.type.miur | 273 Contributo in Atti di convegno | - |
dc.relation.series | PROCEEDINGS OF SPIE | en_US |
dc.identifier.adsbibcode | 2018SPIE10703E..2UL | en_US |
dc.relation.ercsector | ERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation::PE9_17 Instrumentation – telescopes, detectors and techniques | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Conference paper | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.orcid | 0000-0001-9539-2112 | - |
crisitem.author.orcid | 0000-0002-0666-3847 | - |
crisitem.author.orcid | 0000-0002-0983-8040 | - |
crisitem.author.orcid | 0000-0003-1033-1340 | - |
crisitem.author.orcid | 0000-0002-2264-8698 | - |
crisitem.journal.journalissn | 0277-786X | - |
crisitem.journal.ance | E136238 | - |
Appears in Collections: | 3.01 Contributi in Atti di convegno |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
SPIE107032U.pdf | Pdf editoriale | 1.51 MB | Adobe PDF | View/Open |
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