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Radiation mechanisms and physical properties of the ?3-ray narrow-line Seyfert 1 galaxies

机译:α3射线窄线塞弗特1星系的辐射机制和物理性质

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Weinvestigatethephysicalpropertiesandradiationmechanismsof11statesoffivenarrow-lineSeyfert1(NLS1)galaxiesdetectedbytheLargeAreaTelescopeonboardFermithroughmodelingthequasi-simultaneousmulti-bandobservations.Weobtainthebest-fittingmodelparametersandtheiruncertaintiesforeachstatewiththe??2-minimizationprocedureanddiscusstheirimplicationsonthecharacteristicsofjet.Similartoblazars,theirspectralenergydistributions(SEDs)haveatwo-humpedstructureandtheirnon-thermalemissioncanbemodelledwiththesingle-zonesynchrotron+inverseCompton(IC)model.Forallstates,theGeV?3-raysmaybecontributedbytheexternalCompton(EC)emissioncomponents.TheobservationsofFermiaremostlylocatedatthedecliningstageoftheEChumps.Text0.5??eVinallcases(Textisthecharacteristictemperatureofexternalsoftphotons),suggestingthattheirradiationzonesmaybeusuallylocatedoutsideofthebroadlineregion(BLR)andthesoftphotonsofComptonscatteringmainlycomefromthedusttorus.ComparedwiththebrightFermiblazarsstudiedbyGhiselliniet??al.(2014,Nature,515,376),thePjet(thepowerofthejets)ofNLS1galaxiesdetectedbyFermiissimilartothatoftheflatspectrumradioquasars(FSRQs)butalittlelargerthanthatoftheBLLacobjects(BLLacs).However,acomparisonofPr(thepowersofradiations)withtheFSRQsandBLLacobjectsshowsthatNLS1galaxiesa€?PrhasvaluescomparabletoBLLacobjectsbutlowerthanFSRQsinspiteofhavingsimilarPjetvaluesandthesameenergycarrier(thecoldprotons)astheFSRQs.Observationsindicatethat?3-NLS1galaxiesmighthavelower?·(efficiencyofgravitationalenergyrelease)valuesthanGeVblazars.
机译:Weinvestigatethephysicalpropertiesandradiationmechanismsof11statesoffivenarrow-lineSeyfert1(NLS1)galaxiesdetectedbytheLargeAreaTelescopeonboardFermithroughmodelingthequasi-simultaneousmulti-bandobservations.Weobtainthebest-fittingmodelparametersandtheiruncertaintiesforeachstatewiththe ?? 2- minimizationprocedureanddiscusstheirimplicationsonthecharacteristicsofjet.Similartoblazars,theirspectralenergydistributions(的SED)haveatwo-humpedstructureandtheirnon-thermalemissioncanbemodelledwiththesingle-zonesynchrotron + inverseCompton(IC)model.Forallstates,theGeV?3- raysmaybecontributedbytheexternalCompton(EC在所有情况下,Fermi的观测大部分位于EC峰的下降阶段。在所有情况下,Text 0.5?e(文本是外部软光子的特征温度),建议辐照区可能被认为是正确的,并且在整个B线范围内(BLR)都被认为是正确的,并且是由整个354号散装的光子组成。 ,thePjet(thepowerofthejets)ofNLS1galaxiesdetectedbyFermiissimilartothatoftheflatspectrumradioquasars(FSRQs)butalittlelargerthanthatoftheBLLacobjects(BLLacs)。然而,acomparisonofPr(thepowersofradiations)withtheFSRQsandBLLacobjectsshowsthatNLS1galaxiesa€?PrhasvaluescomparabletoBLLacobjectsbutlowerthanFSRQsinspiteofhavingsimilarPjetvaluesandthesameenergycarrier(thecoldprotons)astheFSRQs.Observationsindicatethat?3- NLS1galaxiesmighthavelower?·(efficiencyofgravitationalenergyrelease)valuesthanGeVblazars。

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