the est and solarnet projects
Download
Skip this Video
Download Presentation
The EST and SOLARNET projects

Loading in 2 Seconds...

play fullscreen
1 / 25

The EST and SOLARNET projects - PowerPoint PPT Presentation


  • 71 Views
  • Uploaded on

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

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' The EST and SOLARNET projects' - taji


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
the est and solarnet projects
The EST and SOLARNET projects

FRANCESCA ZUCCARELLO

and the EST & SOLARNET TEAMS

slide4

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

slide5

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

slide6

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) ?
slide7

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,…)

slide8

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
slide10

Diameterof the primarymirror: 4070 mm

  • Diameterof the secondarymirror: 800 mm
  • Spatialresolution on the solar disk: 30 km (goal 20 km)
slide11

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

slide12

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
slide15

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)
slide16

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
  • Microlens-fedspectrograph
    • mustbeadapted and optimizedforpolarimetricmeasurements
  • Fast ImagingPolarimeter
    • based on fast, low-noisepnCCDsensor
slide19

Wavefrontcontrol

  • AdaptiveOptics (AO)
  • MulticonjugateAdaptiveOptics (MCAO) Simulations and Tests
  • Implementationofan AO prototypeforTHEMIS
  • Developmentofan innovative heatrejecterprototypeforGREGOR
  • AtmosphericSeeingCharacterization
  • Applicationof CFD techniquesforlocalseeingoptimization
slide20

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
slide23

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 !!)
slide24

Synergies, advantagesof GB and Satobservations

  • CoordinatedObservationalCampaigns: A Challenge
  • Tillnow the target mustbeselectedtwodays in advance:
    • willitbepossibletoshortenthistimeinterval ?
  • Howabouthaving the sametimecadence in data acquisition ?
  • Flaresissue
slide25

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:
ad