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  • Parkes&theSKATechnologyforthefuture

    CSIROASTRONOMYANDSPACESCIENCE

    JimiGreen

    OzSKA 3 |08th May2017

  • Overview

    ParkesrecognisedasanSKAPathfinderin2016forphasedarrayandwide-bandwidthfeedtechnologydevelopment

    ParkesalsoundertakingsciencegearedtowardsthescienceprioritiesoftheSKA

    TheDish

    PhasedArrayFeeds

    Wide-bandwidthFeeds

    SKASciencewithParkes

    Parkes&theSKA|JimiGreen2 |

  • TheDishBriefHistory

    64mradiotelescope,~380kmwestofSydney,~20kmnorthfromtownofParkes

    Threeyearstodesignandtwoyearstobuild-officiallyopenedon31October1961

    55yearsyounglastyear!

    Continualupgrades&evolutionhavebeenkey(newsurfaces,newfocuscabin,newreceiverse.g.multibeam,backendsystems)

    Multitudeofscientificdiscovery

    Otheractivities- spacecrafttracking(TheDish)

    Parkes&theSKA|JimiGreen3 |

  • TheDishCurrentCapability

    Front-ends: 700MHz->22GHzthroughnumerousreceiversincludingthe10/50andthe13-beammultibeam

    Back-ends: Forsingle-beamtimedomain(eventsObservatoryDevelopmentProgramme

    Variousdesigns/technologiesbeingexplored,e.g.->

    AustralianSKAPathfinderPhasedArrayFeeds

    InitialBETAusedCSIRO1st

    generation,MKI,PAFs

    30nowoutfittedwith2nd generation,MKIIPAFs->36

    Parkes&theSKA|JimiGreen

    PhasedArrayFeeds(PAFs)SKAPerspective

    6 |

    TheteamsfromCanada(NRC),theNetherlands(ASTRON)and

    Australia(CSIRO)withtheirrespectivePhasedArrayFeeddesigns

  • PhasedArrayFeeds(PAFs)CSIRO&ParkesDevelopment

    MaxPlanckInstitute(MPIfR)PhasedArrayFeed- Re-purposedASKAPfeed(MKII),commissionedonParkesin2016

    Timed3Pulsarssimultaneously

    Spectrallineobservations- veryflatandstablebandpass

    12-mantennamonitoringVelapulsar(MKIIPAF)

    RocketPhasedArrayFeed(thirdgeneration) Prototypeondishtesting(plusaperturetests)May2016- veryencouragingforpurposebuiltversion

    700MHz 2GHz,3xMBfieldofview,sub-20KTsys

    LIEFproposalsubmittedforfundingfor2018construction

    Parkes&theSKA|JimiGreen7 |

  • PhasedArrayFeeds(PAFs)CSIRO&ParkesDevelopment

    30

    Feed array performance comparison

    Parkesmul+beam(T/)

    Parkesmul+beam

    Chippendaleetal.(arXiv:1606.03533)

    CryogenicrocketPAF(est.)

    CryogenicrocketPAF(est)

    MPIPAF

    MPIPAF

    System

    Tem

    perature/Efficien

    cy

    PHISCC2017 Pune

    Parkes&theSKA|JimiGreen8 |

  • Wide-bandwidthFeeds

    Parkes&theSKA|JimiGreen9 |

  • Enablesaffordablefrequencyagilityandmorescience!

    SKAconsortiumdedicatedtothisactivity(WBSPF),partofAdvancedInstrumentationProgramme

    Typicalreceivershaveanoctavebandwidthratioof~1:1.85,e.g.H-OHreceiveris1.2to1.8GHz

    Wide-bandwidthpushestechnologytoratiosof1:3,1:5,1:10.

    Reducesneedformultiplereceiversandprovidesmorefrequencycoveragesimultaneously

    Parkes&theSKA|JimiGreen

    Wide-bandwidthFeedsSKAPerspective

    10 |

    SKA

    SKA

    SKA

  • Wide-bandwidthFeedsCSIRO&ParkesDevelopment

    Ultra-WidebandLowFrequencySinglePixelFeed Quadridge structurewithdielectricspear 0.74.0GHz PartlyfundedthroughAustralianResearchCouncilLIEFgrant

    Scheduledforcompletionandinstallationlate2017

    Ultra-WidebandMid/HighFrequencySinglePixelFeed(s)inplanning

    Oneortwofeedstocover4GHzupto25GHz Widebandfeedssharepan:focuscabinwith1PAF+singlepixelcoverage0.7->~25GHz

    Parkes&theSKA|JimiGreen11 |

    AlexDunning

  • SKASciencewithParkes

    Parkes&theSKA|JimiGreen12 |

  • PulsarSearching Detectionmachine>1500,~1/2ofall Cryo-PAF largerfieldofview+localisation

    ParkesTiming ParkesPulsarTimingArray(PPTA):decadeofhighprecisionmeasurements

    Ultra-Wideband increasedsensitivity/improvedTime-Of-Arrivals

    Transients- FastRadioBursts(FRBs) FirstFRBdiscoveredwithParkes(Lorimeretal.2007) >=21of>=26todatediscoveredwithParkes Majorsearchcampaigns,e.g.SUPERBreal-timedetectionproject

    Cryo-PAF largerfieldofview+localisation

    Parkes&theSKA|JimiGreen

    SKASciencePulsarsandTransients

    13 |

    Credit:MPIfRCh.Ng.

  • HIParkesAllSkySurvey(HIPASS),SouthernGalacticPlaneSurvey(SGPS),GalacticAllSkySurvey(GASS)

    ParkessurveyedownGalaxy,Magellanicclouds,1000sofnearbyGalaxies,pushingfurtherinredshift

    ObservationsmadewithMPIfRPAF

    Cryo-PAFHI- intendedforgalaxygascontent,cosmicweb,intensitymapping

    Parkes&theSKA|JimiGreen

    SKAScienceHydrogenovercosmictime

    14 |

    Kim

    etal.2003

  • SKAScienceSearchforExtraterrestrialIntelligence:BreakthroughListen

    5-yearprogramme,multi-yearinvestmentfortelescopetime

    OfficiallybeganobservingOctober/November2016 Observingblockseachday,steppingintime(LocalSiderealTime)throughtheweek

    DedicatedbackendmanagedbyUniversityofCalifornia,Berkeley

    InitialtestsysteminstalledFeb/Mar2016 SinglebeamsysteminstalledSept&Dec2016 Multibeam systemtobeinstalledJune2017

    Openaccesstodataplanned(throughPawsey) Targetedobservations,Galacticplanesurvey,transients/FRBs

    Parkes&theSKA|JimiGreen15 |

  • SKASciencePreparingtheastronomersoftheSKAera

    PULSE@Parkes programme Pulsarfocused,secondary-leveleducationprogramme withreal-timeaccessto,andcontrolof,ParkesTelescope

    ~1500highschoolstudentstodate,~130schools,sessionsacrossAustralia,plusCanada,China,England,Japan,SouthAfrica&Wales

    UndergraduateExtensiontotheprogramme ObservingwithParkes,TrainingandIntroduction,ModuleforUniversityScience:OPTIMUS

    PartofCSIROsONPRIMEdevelopmentscheme UndergraduateleveltrainingpackageincludingParkestelescopetime Extending/varyingsciencetoincludeotheraspects Wedloveyourinputondevelopingthis pleasecontactRobHollowormyself!

    Parkes&theSKA|JimiGreen16 |

  • Summary

    Parkesformallyrecognised asSKAPathfinder

    Widebandfeed(s)comingtoParkes

    CryogenicallycooledPhasedArrayFeedproposedforParkes

    SKAorientedscienceunderway&enabledbytechnology

    TrainingavenuesforfutureSKAscientists

    Parkes&theSKA|JimiGreen17 |

    SKA

    AlexDunning

  • JimiGreenjames.green@csiro.auOzSKA 3 |08th May2017Parkes&theSKA:Technologiesforthefuture

    CSIRO ASTRONOMYANDSPACESCIENCE

    Thankyou