The E-ELT Instrumentation Roadmap Presentation to the Project Science Team
Suzanne Ramsay
Mark Casali, Norbert Hubin, Hans Ulrich Käufl,
Jean-Louis Lizon, Josef Strasser,
Juan Carlos Gonzalez
E-ELT Instrumentation Roadmap | PST 11.07.2012
The instrument studies
The goal of the study programme was to carry-out
a suitable number of instrument studies
to work with the ESO community towards construction
to verify that instruments can be built at an affordable
cost and that they properly address the highest priority
scientific goals,
to work with telescope and operation groups to identify
and define interfaces with the other subsystems and
the observatory infrastructure.
9 instrument and 2 post-focal AO studies carried
out by >300 scientists and engineers in 40
institutes throughout the ESO community
OVERVIEW OF THE E-ELT INSTRUMENT
STUDIES
Nr. Evaluation Criteria for E-ELT instrument selection 1 Scientific Merit :
(a) the instrument addresses science goals identified as of highest priority for the E-ELT
(b) the instrument can be conceived as an E-ELT workhorse to be used for a variety of
programmes, leading to a broad spectrum of potential discoveries
(c) the instrument will benefit and complement observations of other major facilities in
astrophysics like ALMA and the JWST , which will be already in operation at the time of first
light
2 Proven Technical Feasibility and Simulated Performance: the instrument feasibility and its
expected performance have been properly demonstrated in the study
3 Affordability: (a) the instrument cost is well estimated and justified (b) the cost to ESO falls within
or close to the preliminary budget envelope.
4 Timely Match to the telescope + PFAO performance: the instrument schedule of implementation is
well matched to the path of the telescope +AO to full performance. The instrument includes the
possibility to do prime science even during the time when the telescope cannot operate with AO.
ESO/COU 1275, December 2009
Selection process:
criteria
E-ELT Instrumentation Roadmap | PST 11.07.2012
Science based prioritisation
All instruments candidates for selection at first light with
the exception of the planet camera and spectrograph,
EPICS (highest scientific priority but long technology
development)
Science Working Group Criteria for selection of first
light instruments
Scientific impact, including certainty of scientific return
Complementarity with other facilities
Scientific Flexibility
Coverage of expected observing conditions
Selection process:
scientific priority
E-ELT Instrumentation Roadmap | PST 11.07.2012
First light instruments
ELT-CAM: NIR diffraction-limited camera with moderate
field size
ELT-IFU: NIR IFU spectrograph with optical-IR coverage
and seeing limited to diffraction limited capabilities
Adaptive optics systems as required to meet the science
cases of each instrument
Selection process:
the first light pair
E-ELT Instrumentation Roadmap | PST 11.07.2012
MICADO: Diffraction-limited NIR Camera
Primary Imaging Field
53” across, 3mas pix
4x4 HAWAII 4RG det
~20 filter slots
High throughput
Auxiliary Arm
Imager: 1.5mas & 4mas pixels
Spectrograph: R=3000
1 HAWAII 4RG detector
AO System – MCAO/MAORY
PI: Reinhard Genzel (Ric Davies)
MPE, MPIA, USM, INAF-OAPD,
NOVA , LESIA
E-ELT Instrumentation Roadmap | PST 11.07.2012
MAORY : Multi-conjugate adaptive optics relay
MICADO mounted under MAORY
Multi-conjugate AO
6 laser and 3 natural guide stars
Deformable mirrors conjugated to atmospheric
layers at 4km, 12.7km
Very high quality images (S.R. >50% in K) over a
wide field - 2‟,
Central 1‟ clear
Two output ports
PI: Emiliano Diolaiti
INAF (Bologna, Padova, Arcetri,
IASF-Bologna), Univ.Bologna,
ONERA
E-ELT Instrumentation Roadmap | PST 11.07.2012
HARMONI Single field, wide band IFU, NIR spectrometer
Wavelength range 0.47-2.45µm
Spectral resolving power R ≈ 4000, 10000, 20000
4 spatial scales 4mas, 10mas, 20mas, 40mas
4 fields of view 0.5'' x 1.0'' , 1.25'' x 2.5''
2.5'' x 5'„, 5'' x 10'„
LTAO/ATLAS
PI: Niranjan Thatte,
Oxford, CRAL, CSIC, IAC,UK
ATC, ONERA
E-ELT Instrumentation Roadmap | PST 11.07.2012
ATLAS:
Advanced Tomographic Laser AO
Adaptive optics using laser guide stars
Uses the telescope adaptive mirrors, simple design
No additional mirrors in the instrument optical path
Very high quality images (S.R. >50% in K) over ~30‟‟ field
Fixed asterism of six laser guide stars, 2 NGS
Excellent sky coverage
PI: Thierry Fusco
ONERA,GEPI, LESIA, UK
ATC, LAM
E-ELT Instrumentation Roadmap | PST 11.07.2012
First light instruments
ELT-CAM: NIR diffraction-limited camera
ELT-IFU: NIR IFU spectrograph with optical-IR coverage
and seeing limited to diffraction limited capabilities
Adaptive optics systems as required to meet the science
cases of each instrument
A planetary camera/spectrograph with Extreme AO
(>90% Strehl) has high scientific priority and must
be built once the technology is developed
Selection process:
planetary camera/spectrograph
E-ELT Instrumentation Roadmap | PST 11.07.2012
ELT-PCS/EPICS
exo-planet imaging camera spectrograph
Integral Field Spectrograph 0.95-1.65μm
FOV: 0.8'' x 0.8'„/2.33mas
0.8'' x 0.014'„ long slit
R = 125, 1400 and 20000
EPOL 0.6-0.9μm
Coronagraphic polarimeter
FOV: 2'' x 2'‘/1.5mas
Contrast ratios – 10-8 – 10-9
XAO – very high (90%) Strehl
12
PI: Markus Kasper, ESO
LAOG,LESIA, Uni. Nice,
LAM,ONERA, Uni.Oxford, INAF,
ETH Zurich, NOVA
E-ELT Instrumentation Roadmap | PST 11.07.2012
First light instruments
ELT-CAM: NIR diffraction-limited camera
ELT-IFU: NIR IFU spectrograph with optical-IR coverage
and seeing limited to diffraction limited capabilities
Adaptive optics systems as required to meet the science
cases of each instrument
A planetary camera/spectrograph with Extreme AO
has high scientific priority
Instruments thereafter of equal scientific priority
A pool of scientific capabilities : MIR imaging and
spectroscopy, VIS-NIR multi-object spectroscopy, VIS-
NIR high resolving power spectroscopy
Selection process:
a pool of capabilities
E-ELT Instrumentation Roadmap | PST 11.07.2012
E-ELT Instrumentation
Roadmap
ELT-IFU and ELT-CAM for first light
(SWG/STC/ESO)
ELT-MIR, MOS, HIRES scientifically equivalent
priorities (SWG/STC/ESO)
Selection by other considerations (project readiness)
Practical requirements
Staggered project schedule for funding profile
Staggered commissioning schedule
Start enabling technology development, especially
for high-priority instruments e.g. ELT-PCS
Begin project when feasibility (TRL) is demonstrated
E-ELT Instrumentation Roadmap | PST 11.07.2012
Roadmap Considerations
ELT-3 to help cover poor IQ conditions (SWG/STC)
MOS/HIRES scientific requirements to be developed
to allow selection between options (SWG)
Keep flexibility (SWG/STC/ESO)
Changing science, new member states, precursor
instruments
Possibility for submission of new/revised ideas (ESO)
Competitive calls for proposals where sensible (STC)
E-ELT Instrumentation Roadmap | PST 11.07.2012
Instrument Roadmap
7 instruments currently
identified for
construction
100M Euros in
construction budget
Construction proposal
covers first four
instruments
Project Science Team
involvement in science
requirements definition
This plan will evolve!
Requirement to
maintain an “Instrument
Plan” into the
operations phase
E-ELT Instrumentation Roadmap | PST 11.07.2012
ELT-1 and ELT-2
First light instruments selected as ELT-CAM and
ELT-IFU
Unchanged from version 1 of Instrumentation Plan.
These instrument projects include AO capabilities
Require 1-2 years to define
Telescope interfaces, Specifications, Integration of AO
Contract details
Science requirements to be discussed here
Negotiation underway with the Phase A consortia
E-ELT Instrumentation Roadmap | PST 11.07.2012
ELT-3
ELT-MIR selected as instrument 3 based on
readiness and will be based on the METIS study
Specifications are well defined
Less dependent on best image quality
Technically well developed proposal
Minimal technology development
Aquarius detector on-sky tests with VISIR
Successful outcome required before starting ELT-MIR
TRL review 2013
E-ELT Instrumentation Roadmap | PST 11.07.2012
ELT-MIR/METIS: MIR ELT Imager and Spectrograph
Imager (LM and N-
band channels)
LM band IFU
spectrograph
AO module
cold
calibration unit
common
fore-optics o Diffraction limited imager
[18˝ 18˝]
o L/M band and N band
o Includes coronography
o R 5000 long-slit spectrometer
o includes polarimetry
o High resolution IFU [
0.4˝ 1.5˝] spectrograph
o for L/M
o R ~ 100,000
PI: Bernhard Brandl,
Nova, MPIA, CEA Saclay, KU Leuven, UKATC
E-ELT Instrumentation Roadmap | PST 11.07.2012
ELT-4 and 5
Selected to be a MOS instrument (ELT-MOS) and a high-
resolution spectrograph (ELT-HIRES)
Science requirements for MOS in 2013
Call for proposals
E-ELT Instrumentation Roadmap | PST 11.07.2012
ELT-MOS/OPTIMOS-DIORAMAS a wide field imaging MOS
o Wavelength range 0.37 m-1.4(1.6) m
o MOS and Imager
o 6.8‟x6.8‟ FOV
o Standard visible and NIR filters
o Multiplex:
o 480 slits in the visible; 120 for NIR
o Spectral resolution
o R~300, 1000, 2500 visible
o R~400,800,3000 for NIR
PI: Olivier Le Fèvre
LAM, IASF-Milano, Obs.
Haute Provence, Obs.
Genève, IAC
E-ELT Instrumentation Roadmap | PST 11.07.2012
ELT-MOS/OPTIMOS-EVE:
optical-Hband fibre MOS
o Wavelength range 0.37 m-1.7 m
o Patrol field - ~7‟
o Multiplex options
o 240 fibres /R~5000
o 70 fibres / R~15000
o 40 fibres / R~30000
o 30 IFUs 1.8” x 3”
o 1 IFU 7.8”x13.5”
o Both IFUs / R~5000
PI: Francois Hammer
GEPI,NOVA, INAF, RAL, Nils
Bohr I.
E-ELT Instrumentation Roadmap | PST 11.07.2012
ELT-MOS/EAGLE: a wide-field
multi-IFU AO assisted NIR spectrograph
o Near-infrared: 0.8-2.45 m
o Patrol field 38arcmin2
o 20-IFU fields
o 1.65”x1.65”
o R~4000,10000
o Multi-Object AO
o 6LGS, 6NGS
o >30%EE in 75mas pixels
PI: Jean-Gabriel Cuby, Simon Morris
LAM, Uni. Durham, UK ATC, GEPI,
ONERA, LESIA
E-ELT Instrumentation Roadmap | PST 11.07.2012
Removal of the gravity invariant platform
Implications for the EAGLE instrument are being studied
by the team as “delta-Phase A” study
39-mTelescope-Instrument
Interface Change
E-ELT Instrumentation Roadmap | PST 11.07.2012
ELT-4 and 5
Selected to be a MOS instrument (ELT-MOS) and a high-
resolution spectrograph (ELT-HIRES)
Science requirements for MOS in 2013
Call for proposals
Science requirements for HIRES spec option in 2013
Call for proposals
E-ELT Instrumentation Roadmap | PST 11.07.2012
ELT-HIRES/CODEX high stability, high resolution visible spectrograph
Wavelength range 0.37-0.71 m
R~130,000
Field of view (0.82”)
~2cms-1 Doppler precision over 30yrs
no adaptive optics
located in the coudé room
PI: Luca Pasquini, ESO
Geneve Observatory, IAC,
INAF-Trieste and Brera,
IoA
E-ELT Instrumentation Roadmap | PST 11.07.2012
ELT-HIRES/SIMPLE:
High resolution NIR spectrograph
Wavelength 0.84-2.5 m
Complete spectrum
R~130,000
Slit: 27x450mas
Adaptive optics
SCAO on-board
MCAO/MAORY
LTAO/ATLAS
PI: Livia Origlia
INAF,UAO, TLS, PUC
E-ELT Instrumentation Roadmap | PST 11.07.2012
ELT-4 and 5
Selected to be a MOS instrument (ELT-MOS) and a high-
resolution spectrograph (ELT-HIRES)
Science requirements for MOS in 2013
Call for proposals
Science requirements for HIRES spec option in 2013
Call for proposals
Followed by 1-2 years of further Phase-A
design/technology development
Select in 2015 whether MOS or HIRES to become ELT-
4/5
ELT-4 starts in 2016
ELT-5 starts in 2018
E-ELT Instrumentation Roadmap | PST 11.07.2012
ELT-6
Unspecified instrument
A new call for Phase A studies will be issued in 2015
For rework of existing unselected Phase A studies
For new ideas
Successful proposals will be funded for Phase A or ∆-
Phase A studies (2 years)
Competitive Phase A studies
Technical and scientific reviews of Phase A results
Proposal to STC/Council
2019 selection/2020 start
E-ELT Instrumentation Roadmap | PST 11.07.2012
ELT-PCS
Instrument selected for construction
High priority key instrument
High technical risk
Enabling technology required
Strongly affected by ultimate performance of
telescope
Baseline start as late as 2022. Can start earlier if
required TRL has been reached.
E-ELT Instrumentation Roadmap | PST 11.07.2012
Instrument Roadmap
E-ELT Instrumentation Roadmap | PST 11.07.2012 32
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