Sardinia Radio Telescope

CNR ISTITUTO DI RADIOASTRONOMIA INAF

Sardinia Radio Telescope

G. Grueff

IRA – Istituto di Radioastronomia

INAF – Istituto Nazionale di Astrofisica


SRT SITE

ElevationElevation 585 m585 m

LongitudeLongitude +009+0090 0 1414m m 4040ss

LatitudeLatitude +39+390 0 2929m m 5050ss


SRT DESIGN GOALS

Large Diameter: 64 metersLarge Diameter: 64 meters Multiple FeedsMultiple Feeds

300MHz to 100GHz300MHz to 100GHz Receive and TransmitReceive and Transmit

Versatile Configuration – Can be used for:Versatile Configuration – Can be used for: Radio AstronomyRadio Astronomy VLBIVLBI Deep Space Probes (such as Cassini)Deep Space Probes (such as Cassini)

Use State-of-the-Art TechnologyUse State-of-the-Art Technology Minimum Technical RisksMinimum Technical Risks Can be implemented in two stages:Can be implemented in two stages:

Stage 1: Up to 22GHzStage 1: Up to 22GHz HOMOLOGYHOMOLOGY Stage 2: Up to 100GHzStage 2: Up to 100GHz ACTIVE ACTIVE SURFACESURFACE


SRT SCIENTIFIC MOTIVATIONS

Continuum Sky MappingContinuum Sky Mapping

VLBIVLBIImproved SensitivityImproved SensitivitySpace VLBISpace VLBI

VariabilityVariability

Cosmic Microwave BackgroundCosmic Microwave BackgroundSmall-Scale fluctuationsSmall-Scale fluctuationsSunyaev-Zeldovich EffectSunyaev-Zeldovich Effect

Galactic Background PolarizationGalactic Background Polarization

PulsarsPulsarsSearches and DiscoverySearches and DiscoveryFundamental Physics, Neutron StarsFundamental Physics, Neutron StarsInterstellar Medium studiesInterstellar Medium studiesSupport for Space MissionSupport for Space Mission

Radio StarsRadio StarsFlare Stars, RS CVn, Algol, X-ray, Flare Stars, RS CVn, Algol, X-ray, NovaeNovae

Solar SystemSolar SystemThe SunThe SunPlanetary RadarPlanetary RadarSpacecraft TrackingSpacecraft Tracking

CONTINUUM RADIATIONCONTINUUM RADIATION


SRT SCIENTIFIC MOTIVATIONS

Extragalactic CO StudiesExtragalactic CO StudiesEvolution of GalaxiesEvolution of GalaxiesStructure of Individual GalaxiesStructure of Individual Galaxies

Extragalactic Molecules (other)Extragalactic Molecules (other)Normal Emission and AbsorptionNormal Emission and AbsorptionMasersMasers

Galactic StudiesGalactic StudiesThe Stellar DiskThe Stellar DiskEvolved StarsEvolved StarsMethanolMethanolDiffuse CloudsDiffuse CloudsDark Clouds AstrochemistryDark Clouds AstrochemistryIsotopes of Cosmological InterestIsotopes of Cosmological Interest

Solar SystemSolar SystemComets (OH, HComets (OH, H22CO, CO, HCHC

33NN, Urea), Urea)

HI: ExtragalacticHI: ExtragalacticLarge-Scale distribution of GalaxiesLarge-Scale distribution of GalaxiesLow-Luminosity GalaxiesLow-Luminosity GalaxiesHigh-Redshift HI Absorption High-Redshift HI Absorption HI in Galaxies and ClustersHI in Galaxies and Clusters

HI: GalacticHI: GalacticThe Magellanic Stream GasThe Magellanic Stream GasHigh-Velocity GasHigh-Velocity GasHalo GasHalo GasThe Galactic CenterThe Galactic CenterThe Disk of the GalaxyThe Disk of the GalaxyHigh-Latitude HI MappingHigh-Latitude HI MappingMagnetic Fields via the Zeeman Magnetic Fields via the Zeeman

EffectEffect

SPECTROSCOPYSPECTROSCOPY


SRT


SRT SIDE VIEW


SRT GREGORIAN & BWG


SRT PRIMARY FOCUS


PANELS CONTROL SYSTEM


ACTIVE SURFACE


SRT PROJECT - Fundamental Epochs1991 GBT starts

the past:

1993 got money for a feasibility study

1995 feasibility study completed

1997 The Ministry of Scientific Research declares to accept the Project and SRT is funded

Mar. 1999 Contract with Vertex signed (full engineering design)

the future:

Oct. 2000 Design completed - GBT dedicated

Jan. 2001 Manufacturing and Procurement start

Jan. 2003 Site installation starts

Apr. 2004 Final Acceptance, we start playing with radiosources


SCHEDULA TEMPORALE

Edifici di supporto

Inaugurazione

Fabbricazione

Fondazione

Montaggi in sito

Tests e accettazione

Ingegnerizzazione

20062003 2004 2005


FONTI DI FINANZIAMENTO (acquisite)

Finanziamenti di cui impegnati da impegnare

RAS OAC

Totale

5490

41979

MIUR CLUSTER

MIUR FIRB-OAC

30990

1159

1421

2919

MIUR FIRB-IRA

MIUR PON-CNR

31573 10406

2500 2990

2518 401

563 858

999

5158

160

25832


IMPEGNI ECONOMICI FUTURICLUSTER PON FIRB-IRA FIRB-OAC RAS Totale

Imprevisti

Totale

Edifici, impianti civili

Ricevitori

Specchi minori

Varie

Attuatori specchio primario

Servosistema principale

Servosistemi minori

1300

2000

280

90

350 1650

2000

280

320320

450

2900

360

2900

1946

860

1539

319 51 300

188 219

100 90

4015158 104062990999858

Sardinia Radio Telescope

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