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1、TEMPO2tutorialGeorgeHobbs(饺子),ResearchScientistCSIROAustraliaTelescopeNationalFacility,InternationalYoungScientistofNTSCgeorge.hobbs@csiro.auContentTEMPO2isasoftwarepackage.Itimplements“pulsartiming”algorithms.Section1:WhatTEMPO2hasbeenusedfor.OverviewofTEMPO2Sectio
2、n2:HowtouseTEMPO2Section3:HowtodevelopTEMPO2MajorTEMPO2developers(softwareandalgorithms):G.Hobbs,R.Edwards,R.Manchester,W.Coles,X.You,M.Keith,F.Jenet,D.Yardley,J.Verbiest,…CSIRO.TEMPO2Whathastempo2beenusedforin2010/2011?Searchingforgravitationalwavesignals(e.g.,Yard
3、leyetal.2011,Yardleyetal.2010,Abbottetal.2010,vanHaasterenetal.2010)Usingpulsarsasnavigationalaids(Ruggiero2011)Statisticalanalysisoftimingresiduals(e.g.,Na,X.S.etal.,2011,Hobbsetal.2010)Studyingemissiongeometry(e.g.,Noutsosetal.,2011)Searchingforgamma-raypulsars(Ra
4、yetal.,2010)Determiningpulsarmasses(Demorestetal.2010)Studyingpulsationsfrommain-sequencestars(Ravietal.2010)Testsofrelativity(Weisbergetal.2010)MeasuringJupiter’smass(Championetal.2010)Observationsofglitches(Chukwudeetal.2010)AnalysisofaccretingmillisecondX-raypuls
5、ar(Patrunoetal.2010)Relativisticspinprecession(Manchesteretal.2010)CSIRO.TEMPO2Whatdoestempo2do?USAGE1:StartwithfileofpulsearrivaltimesStartwithmodelofapulsar’sspin,astrometricandorbitalparameters->pulsartimingresidualsUSAGE2:Startwithpulsartimingmodel ->predictthep
6、ulsephaseandfrequencyatagivenobservatoryatagiventimeCSIRO.TEMPO2Aparameterfile(.par)CSIRO.TEMPO2Pulsarname,astrometric,rotational,dispersionmeasureandorbitalparametersRealisationofterrestrialtimeSolarsystemephemerisWeightedfit?Fitforthisparameter?Anarrivaltimefile(.
7、tim)CSIRO.TEMPO2Statesthatthisisatempo2formatfileFilenameoridentifierObservingfrequency(MHz)Sitearrivaltime(MJD)Uncertaintyonarrivaltime(us)TelescopecodeUserdefinedflagsHowdoestempo2work?ThealgorithmsarebasedonthoseimplementedinTEMPO1DetailsinHobbs,Edwards&Mancheste
8、r(2006)andEdwards,Hobbs&Manchester(2006)CSIRO.TEMPO2Conversionofsite-arrival-timetopulseemissiontimeClockcorrectionsAtmosphericdelaysEinst
