The est and solarnet projects
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The EST and SOLARNET projects. FRANCESCA ZUCCARELLO and the EST & SOLARNET TEAMS. Today : several national European solar facilities on Tenerife and La Palma. EST A large aperture 4-meter telescope to be built in the Canary Islands

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The EST and SOLARNET projects

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The est and solarnet projects

The EST and SOLARNET projects

FRANCESCA ZUCCARELLO

and the EST & SOLARNET TEAMS


The est and solarnet projects

Today: severalnationalEuropeansolarfacilitieson Tenerife and La Palma


The est and solarnet projects

EST

  • A large aperture 4-meter telescope

  • to be built in the Canary Islands

    EST is promoted by EASTEuropean Association for Solar Telescopes:

  • a consortiumformedbyinstitutionsfrom 15 Europeancountrieswith the aim, amongothers, ofundertaking the developmentof the EuropeanSolarTelescope, tokeepEurope on the frontlineofSolarPhysics.

Countries represented in EAST


The est and solarnet projects

Countries represented in EAST

Countries directly involved in the EST Design Phase

Budget: 6.7 M€

FP-7 EC funding: 3.2 M€

1 Feb 2008 - 30 June 2011

Project Coordinator: M. Collados (IAC)

29 partners plus 9 collaborating institutions


The est and solarnet projects

EST goal is to provide ananswer to the following questions

  • How does the magnetic field evolve andemerge to the surface ?

  • How is energy transported from the photosphere to the chromosphere ?

  • How is the energy released deposited in the upper atmosphere ?

  • Why does the Sun have a hot chromosphere and a hot corona ?

  • What causes the explosive events (flares, filament eruptions, CMEs) ?


The est and solarnet projects

Telescope and instrumentation

key requirements

  • EST must specialise in simultaneous spectropolarimetry

    of the photosphere and the chromosphere

  • Must have superb optical quality, with very high throughput

  • Must have integrated high-order AO and MCAO

  • Must have spectrograph capabilities from blue to near-IR

    (with several simultaneous spectral regions)

  • Must have narrow-band tunablefiltergraphs from blue to

    near-IR, simultaneously accessible

  • Must have complementary imaging channels to observe

    photospheric and chromospheric layers (G-Band, Hα,…)


The est and solarnet projects

Design baseline

  • 4-meter diameter

  • On-axis Gregorian configuration

  • Alt-Az mount

  • Simultaneous instrument stations (each with several wavelength channels) - Broad-band imager - Narrow-band tunable imager - Grating spectrograph

  • MCAO integrated in the optical path


The est and solarnet projects

  • Diameterof the primarymirror: 4070 mm

  • Diameterof the secondarymirror: 800 mm

  • Spatialresolution on the solar disk: 30 km (goal 20 km)


The est and solarnet projects

Beam from telescope

NB1 (390-550 nm)

Upper floor

BB3 Ha CaII IR

30-70

BB1 CaII core

10-90

BB2

CaII wing

BLUE

NBNIR 1

(700-900 nm)

D3

VIS

RED

10-90

NB3

(700-900 nm)

D1

D2

25/75

NIR

GREEN-RED

NBNIR2

900-1100 nm)

75-25

D4

NB2 (550-700 nm)

Lower floor

SPvis

SPNIR


The est and solarnet projects

IntegratedInfrastructureInitiative (I3)

INFRA-2012-1.1.26

ResearchInfrastructuresforHigh-ResolutionSolarPhysics

Grant Agreement no. 312495

  • Purpose:

  • I3 combine in thiscall

  • Networkingactivities,

  • TransNational and Servicesactivities

  • Joint Researchactivities.

Coordinatorinstitution : IAC


Solarnet aims

SOLARNET : AIMS

  • Integrating the major European infrastructures in the field of high-resolution solar physics

  • Realise Trans-national Access to external European users

  • Enhance and spread data acquisition and processing expertise to the Europe-wide community

  • Increase the impact of high-resolution data by offering science-ready data and facilitating their retrieval and usage

  • Encourage combination of space and ground-based data by providing unified access to pertinent data repositories


The est and solarnet projects

Data reduction and Archives

  • Pipelines

    • • GREGOR: GFPI, GRIS,BLISS

    • • SST: CRISP, TRIPPEL, CHROMIS

    • • THEMIS: MTR, TUNIS

    • • VTT: TESOS, LARS

    • • DST: IBIS, ROSA

  • Data Compression

  • ImageRestoration

  • SolarVirtualObservatory (SVO)


The est and solarnet projects

SOLARNET : AIMS

  • Foster synergies between different research communities by organising meetings where each presents state-of-the-art methodologies

  • Train a new generation of solar researchers through setting up schools and a mobility programme


Solarnet aims1

SOLARNET : AIMS

  • Developprototypesfornew-generation post-focus instruments

  • Studylocal and non-localatmosphericturbulence, their impact on imagequality, and waysto negate theireffects

  • Improvedesignsof future largeEuropeanground-andspace-basedsolartelescopes


Solarnet advanced instrumentation development

SOLARNET: AdvancedInstrumentationDevelopment

  • Fourinstrumentstobedeveloped:

  • LargediameterEtalonDevelopment (100 – 300 mm)

    • Severallayouts are explored

  • Imageslicerfor 2D spectroscopy

    • Design developedfor EST [email protected]

  • Microlens-fedspectrograph

    • mustbeadapted and optimizedforpolarimetricmeasurements

  • Fast ImagingPolarimeter

    • based on fast, low-noisepnCCDsensor


The est and solarnet projects

  • Wavefrontcontrol

  • AdaptiveOptics (AO)

  • MulticonjugateAdaptiveOptics (MCAO) Simulations and Tests

  • Implementationofan AO prototypeforTHEMIS

  • Developmentofan innovative heatrejecterprototypeforGREGOR

  • AtmosphericSeeingCharacterization

  • Applicationof CFD techniquesforlocalseeingoptimization


The est and solarnet projects

SynopticObservations

SolarPhysicsResearch Network Group

(SPRING)

  • 4workinggroups:

  • Synopticmagneticfields

  • Solarseismology

  • Transientevents

  • Solarawareness


Previous experience limitations and advantages

Previousexperience, limitations and advantages

Ground-basedtelescopes:

WavelengthrangelimitedbyEarth atmosphere absorption

Radio observations (usefulforinstanceto investigate flares/CMEsproperties) not at the sameresolutionasopticalobservations (future: ALMA)

Acquisitiontimeintervalseverelylimitedbychanges in seeingconditions

Day/night constraints

Higherangularresolution

Possibilitytorepair, upgrade instruments

Changeof the target in realtime

Unique observations in the Hα line (patrol observations, but too low spatial resolution)


Previous experience limitations and advantages1

Previousexperience, limitationsand advantages

  • Satellite Instruments:

  • Telemetry and data transfer limitation

  • Effectsofenergeticparticlesemittedduringsolarexplosiveevents

  • Instruments: itisnotpossibleto upgrade or repair

  • Lostof satellite control (see, e.g. SOHO)

  • Limitedtimeintervalof satellite observations (10 - 15 y ?)

  • Public release data

  • Pipelines (forinstance, Solar Software) almostimmediatelyavailable

  • Wellorganized data archives and repository


The est and solarnet projects

Synergies, advantagesof GB and Satobservations

  • EST and ATST-DKIST have the advantageofmuchhigher data return, but are limitedtotheirvantagepoints on the Sun-Earthline.

  • Depending on the orbitalconfiguration, significantsynergy can beachievedbycombiningSolarOrbiter’sremote-sensing data witheitherhigh-resolution and/or high-cadenceco-spatial data fromotherobservatoriesthatprovideadditionalspatialcoverage

  • Authorswhouse high resolution GB data veryoften “like” to put them in a widercontext and thereforeusealsoSat data

  • The oppositeoccurslessoften (probablybecauseanaccessiblearchivedoesnotyetexists or because the pipelines are notalwaysavailable, butremember the SOLARNET goals and the work going on !!)


The est and solarnet projects

Synergies, advantagesof GB and Satobservations

  • CoordinatedObservationalCampaigns: A Challenge

  • Tillnow the target mustbeselectedtwodays in advance:

    • willitbepossibletoshortenthistimeinterval ?

  • Howabouthaving the sametimecadence in data acquisition ?

  • Flaresissue


The est and solarnet projects

Conclusions

  • The EST project is promoted by EAST (European Association for Solar Telescopes)

  • The Design Phase has been financed by EC (29 partners: 14 scientific institutions and 15 industries)

  • A new budget has been allocated to the EST-EAST community by EU: SOLARNET

  • Synergies with ATST-DKIST, Solar Orbiter and other GB and Sat facilities are necessary in order to achieve a better knowledge of the Sun.

  • EST website: http://www.iac.es/proyecto/EST

  • SOLARNET website:


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