OWL Instrument Concept Studies

Within the OWL Conceptual Design to be completed by ESO in 3Q 2005, ESO collaborates with external institutes in the study of a few instrument concepts which address primary scientific goals of the project.

Limited in scope but very much needed :

• To verify with actual instrument concepts the compliance and/or critical aspects in the interfaces and operation scheme of the present telescope design

• To identify critical issues and required R&D in the instrument development

Some of the concepts expected to evolve/merge in the more detailed studies to be carried out within the FP6 program for ELT

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SCIENCE DRIVERS FOR 30-100m TELESCOPES

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30 m CELT Concept Study- June 2002

30m GSMT- June 2003 Scientific Goal Overview

European ELTs – being finalized, should be available in April 2005

Terrestrial Planets in Extra-solar Systems

Stellar Populations across the Universe

Building Galaxies since the Darkest Ages

Dark Matter, Dark Energy and Light in the Universe

100m OWL Opto-Mechanical Concept - December 2004

Adaptive, conjugated to pupil;Adaptive, conjugated to pupil;

Adaptive, conjugated to 8km;Adaptive, conjugated to 8km;

OWL Optical Design December 2004

Courtesy of P.Dierickx

INSTRUMENT FOCAL STATIONS

• 6 focal stations; switch by rotating M6 about telescope axis.• Max. instrument mass 15 tons each.• Local insulation & air conditioning

Courtesy of P. Dierickx

OWL Instrument Concept Studies

Telescope Interfaces Statement of Work

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OWL Instrument Concept Studies (1)

CODEX (Cosmic Differential EXpansion) Experiment Capability: High accuracy radial velocity measurements (~ 1-5 cm/s) Science Goal: To derive cosmological constants from direct measurement of cosmic acceleration (v /t). Institutes: ESO, INAF-OATs (Italy), Geneve Obs.(Switzerland), IoA, Cambridge (U.K.) ; Responsible: L.Pasquini RUNNING

Multi-integral field , near-IR spectrometer Capability: IR 2D spectroscopy at intermediate angular and spectral resolution over several small areas in the field of view of the telescope Science Goals: masses of high z galaxies, regions of star formation, GC stars Institutes: CRAL, LAM, OPM (France); Responsible: J.G.Cuby ; at ESO M.Casali LAUNCHED

SCOWL (SCUBA for OWL) Capability: large field camera operating at submillimeter wavelengths Science Goals: surveys of regions of dust formation, high redshift star- forming galaxies, planetary disks Institutes: ATC (UK), ESO; Responsible: I.Egan; at ESO: R.Siebenmorgen UNDER DEFINITION

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OWL Instrument Concept Studies (2)

Mid-IR High Resolution Imager-Spectrograph Capability: diffraction-limited imaging-spectroscopy in the Thermal

infrared Science Goals: planetary imaging, star formation from H at high z

Institutes: MPIfA Heidelberg (Germany), ESO; Responsible: R.Lenzen; at ESO:

H.U. Kaeufl LAUNCHED

Quantum Optics and Astrophysics Goal: Review of Astrophysical Quantum Optical Phenomena best suited for

OWL observations – Define instrument requirements. Institutes: Univ.Lund (Sweden), Univ.Padua(Italy), Responsibles: C.Barbieri &

D.Dravins; Responsible at ESO: B.Fosbury. LAUNCHED

“Large Field” IR camera including Wavefront Sensor Capability: Multi-color imaging at high angular resolution (0.05-0.1

arcsec) over a ~1 x 1 arcmin field. Science Goals: faint stellar and galaxy

populationsInstitutes: INAF,OA Arcetri & Padova(Italy); Responsible: R.

Ragazzoni; at ESO: E. Marchetti UNDER DEFINITION

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OWL Instrument Concept Studies (3)

Hypertelescope Imaging Camera Capability: speckle interferometry with a partially filled OWL aperture Science Goal: planetary disks; Institute: tbd ; Responsible: A.

Laberie ; at ESO : G. Monnet UNDER DEFINITION

Planetary Camera Capability: imaging/spectroscopy at the diffraction limit. Science

Goal: Planet detection . Institutes: ESO+ tbd; Responsible at ESO: N.Hubin

UNDER DEFINITION

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