CosmicJetsandRadioLobes喷流和射电瓣很多活动星系有很强的射电喷流Hot spots:EnergyinthejetsisreleasedinRadio image ofinteractionwithsurroundingmaterialCygnus A喷流的能量释放到与其相互作用的周围物质里，形成热点Visible galaxyMaterial in the jets moves with almost thespeed of light（“relativisticjets”相对论性喷流
Cosmic Jets and Radio Lobes 喷流和射电瓣 很多活动星系有很强的射电喷流 Radio image of Cygnus A Material in the jets moves with almost the speed of light (“relativistic jets”相对论性喷流). Hot spots: Energy in the jets is released in interaction with surrounding material 喷流的能量释放到与其相 互作用的周围物质里，形 成热点
Formation of Radio Jets射电喷流的形成3C449Jetsarepoweredbyaccretionofmatter ontoasupermassiveblackhole喷流是由黑洞吸积物质产生的BlackHole黑洞AccretionDisk吸积盘BiadMagnetictoid inesAccreticnCieSizeofvisible galaxyTwistedmagneticfieldsnelptoconfinethematerial inthejetandtoproducesynchrotronradiation磁场束缚物质，产生射电辐射。2002Brooks ColePublishing-adivisionofThomsonLearning
Formation of Radio Jets 射电喷流的形成 Jets are powered by accretion of matter onto a supermassive black hole. 喷流是由黑洞吸积物质产生的 Black Hole 黑洞 Accretion Disk 吸积盘 Twisted magnetic fields help to confine the material in the jet and to produce synchrotron radiation. 磁场束缚物质，产生射电辐射
The Jets of M87Jet:~2.5kpclongDiskRadio imageM87VisiblegalaxyM87=Central,giantellipticalgalaxyintheVirgoclusterofgalaxiesOpticaland radio observations detectajetwithvelocitiesupto~1/2c喷流速度达到1/2光速
The Jets of M87 M87 = Central, giant elliptical galaxy in the Virgo cluster of galaxies Optical and radio observations detect a jet with velocities up to ~ 1/2 c. 喷流速度达到1/2光速
TheDustTorusinNGC4261尘埃环Dusttorusisdirectlyvisible withHubbleSpaceTelescope哈勃空间望远镜直接观测到的尘埃环
The Dust Torus in NGC4261 尘埃环 Dust torus is directly visible with Hubble Space Telescope 哈勃空间望远镜直接观测到的尘埃环
Model for Seyfert Galaxies模型Gasclouds气体云JetsJetGasclouds喷流Emission lines发射线......Uv,X-rays高能光子BlackholeThinaccretionSupermassiveblackholeDensediskAccretion disktorus超大质量黑洞吸积盘densedusttorus尘埃环
Model for Seyfert Galaxies 模型 Supermassive black hole Accretion disk 超大质量黑洞 吸积盘 dense dust torus 尘埃环 Gas clouds气体云 UV, X-rays 高能光子 Emission lines 发射线 Jets 喷流