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An AO testing facility at the Asiago Copernico telescopeSimonetta Chinellato
On behalf of R. Ragazzoni, J. Farinato, S. Benetti, M. Bergomi, F. Biondi, E. Cappellaro, E. Carolo,
V. Chiomento, M. Dima, A. Frigo, D. Greggio, M. Gullieuszik, D. Magrin, L. Marafatto, G. Martorana, E. Portaluri, M. Rebeschini, L. Tomasella, L. Traverso, M. Turatto,
D. Vassallo, V. ViottoINAF – Osservatorio Astronomico di Padova
ADONI Workshop, Firenze 12-14 aprile 2016
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An ADONI Project @Osservatorio Astronomico di Padova (OAPd)Set-up facilities accessible to the Italian and international AO communityTESTING of critical sub-systems or components or prototypes of innovative concepts which may require ON-SKY demonstrations, mainly related to AO, but not only A permanent facility at the Coudé focus of the 182cm Copernico Telescope in Asiago-EkarCreate a LABORATORY @ Coudé focusRefurbishment of Copernico in order to implement the Coudè optical train
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Coude focusNasmyth foci
• 182 cm diameter: currently the biggest telescope in Italy• equatorial mount• Classical Cassegrain
• Primary parabolic• Secondary hyperbolic
• Focal length 16.38 m• f/9
M1
M2M3
ON-SKY testing
The COPERNICO Telescope
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M1
M2M3 Refurbishment: The optical train to the Coudé focus: opto-mechanical design The Laboratory in correspondence of the Coudé focal station: room and optical Setup
The COPERNICO Telescope: Workbench @ Coudé focus
ON-SKY testing
An optical bench installed for VISITING INSTRUMENTSA facility of particular benefit to experiments in high resolution imaging.
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GHRILGround-based High Resolution Imaging Laboratory @ NasmythGravity invariant
Existing laboratories: WILLIAM HERSCHEL TELESCOPE (WHT)WHT: 4.2 m - La Palma
For instruments requiring mechanical stability
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Existing laboratories: VISITOR FOCUS @ VLTVisitor focus @ ESO VLTAvailable for Visitor Instruments to permit innovative observations by instrument teams using their own stand-alone instruments. On-sky testing
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Refurbishment of the optical train @ Coudé focusOpto-mechanical design from M3 to Coudè focus
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L1f=400mmØ=90mmL2f=2000mmØ=135mm L3F=1000mmØ=135mm
756mm 1300mm
254mm
Polychromatic Spot DiagramPolychromatic PSF
OPTICAL DESIGN – F/19.5 – Max radial FoV = 1.2 arcmin
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Workbench: procurement of laboratory setupLaboratory setup: room for optical bench and componentsRequirement for Coudé Room: THERMICALLY INSULATED
Coudé RoomControl Room
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Coudé Laboratory enclosure
Folding mirror
Focal plane
Test SetupM7
756 mm
Coudéfocusf/19.5 TELECENTRIC beamFoV ~ 2.4 arcminScale ~ 6 arcsec/mm
L3
Room dim3m
3m2,8m
Optical table1800 x 1200 mmOptical axis
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• the very fast implementation of novel concept of wavefront sensing Examples On-Sky testing
Pseudo Infinite Guide Star@ WHTTested under realistic conditions
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• the very fast implementation of novel concept of wavefront sensing • the implementation of techniques in high angular resolution imaging (like lucky imaging, speckle interferometry, phase retrieval technique, ecc)
Controlling segmented primary mirrors for E-ELT@ Visitor focus VLTDemonstrate functionality on-sky
Examples On-Sky testing
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• the very fast implementation of novel concept of wavefront sensing • the implementation of techniques in high angular resolution imaging (like lucky imaging, speckle interferometry, phase retrieval technique, ecc)• the direct comparison of different kinds or concepts of wavefront sensors in the same observational conditions
MAD is a Multi-conjugate Adaptive optics Demonstrator@ Visitor focus VLT
Examples On-Sky testing
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• the very fast implementation of novel concept of wavefront sensing • the implementation of techniques in high angular resolution imaging (like lucky imaging, speckle interferometry, phase retrieval technique, ecc)• the direct omparison of different kinds or concepts of wavefront sensors in the same observational conditions• Testing of specialized pupil planes aperture (LBT, GMT, etc)
Simulating LBT pupil@ TIRGO Record realistic LBT-like data
Examples On-Sky testing
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• the very fast implementation of novel concept of wavefront sensing • the implementation of techniques in high angular resolution imaging (like lucky imaging, speckle interferometry, phase retrieval technique, ecc)• the direct omparison of different kinds or concepts of wavefront sensors in the same observational conditions• Testing of specialized pupil planes aperture (LBT, GMT, etc) • Any instrumentation to be tested ON-SKY
Examples On-Sky testing
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Users from national & international community can get access to the Laboratory by applying for dedicated time.
A common user bench for AO multi-purpose instrumentation for ON-SKY testing• Currently the biggest telescope in Italia 182 cm diameter• Easy to reach – 1.5h from VCE• Coudé focus always accessible (switch in 10 min.)• Facility with laboratory open to all • Direct ON-SKY testing• Versatile workbench• Practicable: early 2017
Adaptive Optics Laboratory @ OAPd:a PUBLIC FACILITY