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首页> 外文期刊>PASJ: Publications of the Astronomical Society of Japan >Measuring the Broad-Band X-Ray Spectrum from 400eV to 40keV in the Southwest Part of the Supernova Remnant RXJ1713.7$-$3946
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Measuring the Broad-Band X-Ray Spectrum from 400eV to 40keV in the Southwest Part of the Supernova Remnant RXJ1713.7$-$3946

机译：测量超新星残余西南部分从400eV到40keV的宽带X射线光谱RXJ1713.7 $-$ 3946

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WereportonresultsfromSuzakubroadbandX-rayobservationsofthesouthwestpartofthegalacticsupernovaremnant(SNR)RXJ1713.7$$-$$3946withanenergycoverageof0.4-40keV.TheX-rayspectrum,presumablyofsynchrotronorigin,isknowntobecompletelylineless,makingthisSNRideallysuitedforadetailedstudyoftheX-rayspectralshapeformedthroughefficientparticleaccelerationathigh-speedshocks.WithasensitivehardX-raymeasurementfromtheHXDPINaboardSuzaku,wedeterminedthehardX-rayspectruminthe12-40keVrangetobedescribedbyapowerlawwithphotonindexof$$Gamma=$$3.2$$pm$$0.2,significantlysteeperthanthesoftX-rayindexof$$Gamma=$$2.4$$pm$$0.05measuredpreviouslywithASCAandothermissions.Wefindthatasimplepowerlawfailstodescribethefullspectralrangeof0.4-40keV,andinsteadapower-lawwithanexponentialcutoffwithahardindexof$$Gamma=$$1.50$$pm$$0.09andahigh-energycutoffof$$epsilon_{ mc}=$$1.2$$pm$$0.3keVformallyprovidesanexcellentfitoverthefullbandpass.Ifweusetheso-calledSRCUTmodel,asanalternativemodel,itgivesabest-fitrolloffenergyof$$epsilon_{ mroll}$$$$=$$0.95$$pm$$0.04keV.TogetherwiththeTeV$$gamma$$-rayspectrum,rangingfrom0.3to100TeV,recentlyobtainedbyHESSobservations,ourSuzakuobservationsofRXJ1713.7$$-$$3946providestringentconstraintsonthehighest-energyparticlesacceleratedinasupernovashock.
机译：WereportonresultsfromSuzakubroadbandX-rayobservationsofthesouthwestpartofthegalacticsupernovaremnant（SNR）RXJ1713.7 $$ - $$ 3946withanenergycoverageof0.4-40keV.TheX-rayspectrum，presumablyofsynchrotronorigin，isknowntobecompletelylineless，makingthisSNRideallysuitedforadetailedstudyoftheX-rayspectralshapeformedthroughefficientparticleaccelerationathigh-speedshocks.WithasensitivehardX-raymeasurementfromtheHXDPINaboardSuzaku，wedeterminedthehardX-rayspectruminthe12-40keVrangetobedescribedbyapowerlawwithphotonindexof $$伽玛= $$ 3.2 $ $ pm $$ 0.2，大大高于$ Gamma的软X射线索引= $$ 2.4 $ pm $$ 0.05，之前使用ASCA和其他任务测量。我们认为，一个简单的幂法则无法描述0.4-40keV的整个光谱范围，而实际上幂幂的截断力是$$$$ 9 = $$$$ 0 = $$ _ $ {$ amma $ = = $$ 1.2 $$ pm $$ 0.3ke正式提供了在整个带通上的出色拟合。如果我们使用所谓的SRCUT模型，另一种模型，则将获得最大拟合能量，降低$ epsilon_ {mro ll} $$$$ = $$ 0.95 $$ pm $$ 0.04keV。连同TeV $$γ$-射线光谱，范围从0.3到100TeV，最近由HESS观测获得，我们的Suzaku观测到RXJ1713.7 $$-$ 3946提供了严格的约束，这是最高能量的新星。

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