SYSTEM FOR CORONAGRAPHY WITH HIGH ORDER ADAPTIVE OPTICS FROM R TO K BAND THE NIR CHANNEL

Transcription

1 1 SYSTEM FOR CORONAGRAPHY WITH HIGH ORDER ADAPTIVE OPTICS FROM R TO K BAND THE NIR CHANNEL Jacopo Farinato The SHARK-NIR Team: J.Farinato 1, F.Pedichini 2, E.Pinna 3, C.Baffa 3, A.Baruffolo 1, M.Bergomi 1, L.Carbonaro 3, A.Carlotti 4, M.Centrone 2, L.Close 5, J.Codona 5, M.Dima 1, S.Esposito 3, D.Fantinel 1, G.Farisato 1, W.Gaessler 6, E.Giallongo 2, D.Greggio 1, J.C.Guerra 5, O.Guyon 5, P.Hinz 5, F.Lisi 3, D.Magrin 1, L.Marafatto 1,7, A.Puglisi 3, R.Ragazzoni 1, B.Salasnich 1, C.Verinaud 4, V.Viotto 1 1) INAF PADOVA 2) INAF ROMA 3) INAF-ARCETRI 4) IPAG 5) STEWARD OBSERVATORY ARIZONA (USA) 6) MPIA 7) UNIVERSITY OF PADOVA

2 2 Why SHARK Extreme AO correction in the NIR region with SR > 95% best PSF subtraction with or without coronagraph increasing target S/N. Very good SR > 40% in the optical R-I bands new window for high angular resolution (~17 mas) at a single telescope, comparable to what achievable at LBT by NIR interferometry. SHARK is the VIS & NIR coronographic imager that will make use of the LBT excellent AO performances! H band w/o coronograph Contrast < 10-4

3 3 SHARK CORO science Direct imaging of close giant planets investigating the main evolutionary stages: Young planets, from early phases of growth (the first few million years) when these are hot, surrounded by disks, and can be revealed thermally at T> 300 K in NIR and in Halpha (VIS channel) Old giant planets, very close (< 5-10 pc ) and bright, whose reflected light could be detected for separations of the order of mas in the visible, where greater is their emission, and also in the NIR if very cloudy. Disks around Young Stars and their Jets High-contrast images of circumstellar disks with optical/near-ir coronagraphy and polarimetric differential imaging Coronagraphic imaging of stellar jets 2D maps of Jets AGNs and QSOs

4 4 What is SHARK? Initial idea: Essentially a Coronagraphic camera, working from R to K bands (designed for high contrast imaging) The basic idea is to make it simple as possible (compact, light, close to the WFS) and cheap The baseline coronagraphic technique is classical Lyot Several designs initially considered (in the SHARK proposal submitted for the call for ideas for 2 nd generation LBT instrumentation - October 2012)

5 5 Call for LBT instruments (Feb 2014) SHARK-NIR PI Jacopo Farinato Pyramid WFS Pyramid WFS SHARK-VIS PI Fernando Pedichini SHARK NIR J; H; K LMIRCam L; M Vis IFU SHARK VIS R; I Even if it is a 2nd generation instrument, it can coexist with the 1st generation, with an impact as soft as possible (simplicity, small dimension, only partially overlapping wavelength range). In fact, SHARK basic features are: NIR Coro-Camera (J,H,K) VIS Coro-Camera (R,I) VIS Spectrograph R; I

6 6 SHARK location: at the entrance of LBTI (preliminary agreement with Phil Hinz) SHARK-NIR SHARK-VIS Talk of Fernando Pedichini

7 7 The NIR Channel Bearing The Chriostat

8 8 SHARK NIR Optical Design

9 9 SHARK NIR Optical design performance

10 10 SHARK NIR characteristics summary SHARK NIR main characteristics Large FoV design Observing Modes Imaging/Coronagraphy Detector format [px] 2048x2048 FoV x ["] FoV y ["] FoV along the diagonal ["] scale ["/px] Airy 1 micron [px] 2 Airy 1.25 micron [px] Number of mirrors in the camera 5 (3 flat and 2 off-axis parabolas) Cold Stop Yes, in the intermediate pupil plane ADC Yes, deployable Max circular FoV diameter 30.67" Max FoV along the diagonal 43.37" Strehl at 10" FoV diameter (in all Bands) >99% Strehl at 30" FoV diameter (J Band) >95% Strehl within whole FoV (43.37" in diagonal) (J Band) >81% Optical bench dimension along the input optical axis [mm] ~220 Optical bench dimension in the direction perpendicular to the input optical axis [mm] ~350 Max diameter off-axis parabolas [mm] 52 Max diameter folding mirrors [mm] 55

11 11 Coronagraphy There is a baseline design for the coronagraph (Classical Lyot), but we do have a flexible design with filter wheels on both the focal and the pupil planes, where different techniques might be implemented Lyot technique

12 12 The SHARK-NIR Team INAF Padova (Project Responsible, NIR Channel Opto-Mechanics and IC Software) INAF-Arcetri (AO Interaction and CRYO and NIR detector support) Steward Observatory (LBTI interfaces, NIR detector, alternative CORO design) MPIA for SW design (Wolfgang Gaessler) (and motors electronics? TBD) IPAG (alternative CORO design) ESO (alternative CORO design) INAF-Rome (Coordination with VIS Channel) Science team (INAF Padova, INAF Roma, INAF Arcetri, INAF Catania, IPAG, Steward Observatory, MPIA, University of Padova, University of Catania, INAFTorino, INAF Palermo, Aix Marseille Université (LAM), ESO) Instrument Scientist soon in the SHARK-NIR Team A Board of supervisor (both from Science group and from Instrument experts) to ensure that the sinergy between the two channels is preserved Well identified and shared responsibilities, with reasonable required manpower A total of ~18 FTEs (including science) for the project completion

13 13 SHARK-NIR Schedule Milestones On request of LBT Board, SHARK-NIR is a fast track project with a very aggressive (success oriented!) schedule (which supposes a certain cash flow), the main milestones of which are: Estimated T 0 in January 2015 Conceptual Design Review in T 0 + 5m (May 2015) Final Design Review in T m (February 2016) NIR Camera for Direct Imaging on SKY in about years from T 0 (Fall 2017) NIR CORO mode on Sky in about 3.5 years from T 0 (Mid 2018)

14 SHARK-NIR Cost Estimate 14 ITEM Cost (K ) Hardware (NO VAT) 1060 Travels 200 Contracts 320 TOTAL 1580 TOTAL + CONT. (10%) 1740 NIR Channel CASH FLOW (K ) 1 st year 2 nd year 3 rd year 4 th year Total Travels Contracts Design studies HW Prototypes TOTAL Cash Flow fundamental to accomplish the aggressive schedule

15 15 Statement on Open Use We intend SHARK to be a facility instrument, and thus to offer it to the whole LBTO community, beyond the partners involved in our proposal.

16 11/11/2014 3:07 PM - Pianeti Extrasolari - Roma 16 Conclusions We do have an outstanding main science case, plus several others very interesting cases which require binocularity and coronagraphy (we did not touch the NON- Coro and the single eye science)

17 11/11/2014 3:07 PM - Pianeti Extrasolari - Roma 17 Conclusions We do have an outstanding main science case, plus several others very interesting cases which require binocularity and coronagraphy (we did not touch the NON- Coro and the single eye science)

18 11/11/2014 3:07 PM - Pianeti Extrasolari - Roma 18 Conclusions We do have an outstanding main science case, plus several others very interesting cases which require binocularity and coronagraphy (we did not touch the NON-Coro and the single eye science) We will make use of the XAO LBT capability (with SOUL even better!) LBT (PWFS, on sky data, good seeing 0.6 ) LBT (PWFS-L3CCD, simulation, good seeing Palomar (SH, on sky data, average seeing ) VLT-Sphere (SH, Lab test, average seeing, 0.85 ) Sphere (lab SH)

19 11/11/2014 3:07 PM - Pianeti Extrasolari - Roma 19 Conclusions We do have an outstanding main science case, plus several others very interesting cases which require binocularity and coronagraphy (we did not touch the NON-Coro and the single eye science) We will make use of the XAO LBT capability The NIR Arm is unique in the LBT scenario in its CORO fashion

20 11/11/2014 5:42 PM - Pianeti Extrasolari - Roma 20 Conclusions We do have an outstanding main science case, plus several others very interesting cases which require binocularity and coronagraphy (we did not touch the NON-Coro and the single eye science) We will make use of the XAO LBT capability The NIR Arm is unique in the LBT scenario in its CORO fashion International scenario favourable: North Sky 2 competitors, Palm3000 and SCExAO, and with the latter we can work in sinergy

21 11/11/2014 3:07 PM - Pianeti Extrasolari - Roma 21 Conclusions We do have an outstanding main science case, plus several others very interesting cases which require binocularity and coronagraphy (we did not touch the NON-Coro and the single eye science) We will make use of the XAO LBT capability The NIR Arm is unique in the LBT scenario in its CORO fashion International scenario favourable: North Sky 2 competitors, Palm3000 and SCExAO, and with the latter we can work in sinergy SHARK-NIR is very simple, small and close to the WFS (NCP and flexure minimization)

22 11/11/2014 3:07 PM - Pianeti Extrasolari - Roma 22 Conclusions We do have an outstanding main science case, plus several others very interesting cases which require binocularity and coronagraphy (we did not touch the NON-Coro and the single eye science) We will make use of the XAO LBT capability The NIR Arm is unique in the LBT scenario in its CORO fashion International scenario favourable: North Sky 2 competitors, Palm3000 and SCExAO, and with the latter we can work in sinergy SHARK-NIR is very simple, small and close to the WFS (NCP and flexure minimization) SHARK-NIR is a 2nd generation instrument which can coexist with the 1st generation

23 11/11/2014 3:07 PM - Pianeti Extrasolari - Roma 23 Conclusions We do have an outstanding main science case, plus several others very interesting cases which require binocularity and coronagraphy (we did not touch the NON-Coro and the single eye science) We will make use of the XAO LBT capability The NIR Arm is unique in the LBT scenario in its CORO fashion International scenario favourable: North Sky 2 competitors, Palm3000 and SCExAO, and with the latter we can work in sinergy SHARK-NIR is very simple, small and close to the WFS (NCP and flexure minimization) SHARK-NIR is a 2 nd generation instrument which can coexist with the 1 st generation SHARK-NIR is cheap and potentially fast (depending on the cash flow)

24 11/11/2014 3:07 PM - Pianeti Extrasolari - Roma 24 Conclusions We do have an outstanding main science case, plus several others very interesting cases which require binocularity and coronagraphy (we did not touch the NON-Coro and the single eye science) We will make use of the XAO LBT capability The NIR Arm is unique in the LBT scenario in its CORO fashion International scenario favourable: North Sky 2 competitors, Palm3000 and SCExAO, and with the latter we can work in sinergy SHARK is very simple, small and close to the WFS (NCP and flexure minimization) SHARK is a 2 nd generation instrument which can coexist with the 1 st generation SHARK is cheap and potentially fast (depending on the cash flow) October , the Board endorsed SHARK NIR for the conceptual study phase (CDR in May 2015)