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The Coeval of Starburst and BH Growing. X.Y.Xia Tianjin Normal University, China. Outline. The Relation of Bulge and BH ( M-σ 关系 ) Ferrarese & Merrit , 2000 , Tremaine et al. 2002 The Star Formation History and Distribution of QSOs
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The Coeval of Starburst and BH Growing X.Y.Xia Tianjin Normal University, China
Outline • The Relation of Bulge and BH ( M-σ关系) Ferrarese & Merrit,2000,Tremaine et al. 2002 • The Star Formation History and Distribution of QSOs 星系中心黑洞的增长与星系核球中恒星的形成过程的紧密联系。这使人们开始认识到星系的形成过程与星系中心黑洞的增长、与星系核的活动密切相关,即星系中心的黑洞参与并影响了其“宿主”星系的演化过程(Heckman et al. 2004; Springel et al.) • 星系相互作用和并合的观测证据 • 星暴和AGN
Galaxy Structure • Flat disk: • 1011 stars (Pop.I) • ISM (gas, dust) • 5% of the Galaxy mass, 90% of the visible light • Active star formation since 10 Gyr. • Central bulge: • moderately old stars with low specific angular momentum. • Wide range of metallicity • Triaxial shape (central bar) • Central supermassive BH • Stellar Halo • 109 old and metal poor stars (Pop.II) • 150 globular clusters (13 Gyr) • <0.2% Galaxy mass, 2% of the light • Dark Halo
M 关系 对超重质量黑洞进行 观测的一个重要结 果发现,星系超重 质量黑洞质量与星系 核球光度很好地相 关,但与整个星系 性质(如,光度)不 相关。
Outline • The Relation of Bulge and BH ( M-σ关系) Ferrarese & Merrit,2000,Tremaine et al. 2002 • The Star Formation History and Distribution of QSOs 星系中心黑洞的增长与星系核球中恒星的形成过程的紧密联系。这使人们开始认识到星系的形成过程与星系中心黑洞的增长、与星系核的活动密切相关,即星系中心的黑洞参与并影响了其“宿主”星系的演化过程(Heckman et al. 2004; Springel et al.) • 星系相互作用和并合的观测证据 • 星暴和AGN
Outline • The Relation of Bulge and BH ( M-σ关系) Ferrarese & Merrit,2000,Tremaine et al. 2002 • The Star Formation History and Distribution of QSOs 星系中心黑洞的增长与星系核球中恒星的形成过程的紧密联系。使人们开始认识到星系的形成过程与星系中心黑洞的增长、与星系核的活动密切相关,即星系中心的黑洞参与并影响了其“宿主”星系的演化过程(Heckman et al. 2004; Springel et al. ) • 星系相互作用和并合的观测证据 • 星暴和AGN
Outline • The Relation of Bulge and BH ( M-σ关系) Ferrarese & Merrit,2000,Tremaine et al. 2002 • The Star Formation History and Distribution of QSOs 星系中心黑洞的增长与星系核球中恒星的形成过程的紧密联系。这使人们开始认识到星系的形成过程与星系中心黑洞的增长、与星系核的活动密切相关,即星系中心的黑洞参与并影响了其“宿主”星系的演化过程(Heckman et al. 2004; Springel et al.) • 星系相互作用和并合的观测证据 • 星暴和AGN
CDM - Hierarchical scenario Springel et al, 2001, MNRAS, 228, 726: high resolution N-body simulation of the evolution of clusters of galaxies
Three galaxies, M81 (big), M82 (medium), and NGC 3077 (small).Are they related to one another?
The molecular emission is highly concentrated within 1kpc or even smaller, cf Arp220 Two disks are merging, as seen in the dispersion, and mm continuum CO on the optical HST image Downes & Solomon 98
Mihos & Hernquist 96 Simulations of disk/halo galaxies Gas and young stars are plotted
Outline • The Relation of Bulge and BH ( M-σ关系) Ferrarese & Merrit,2000,Tremaine et al. 2002 • The Star Formation History and Distribution of QSOs 星系中心黑洞的增长与星系核球中恒星的形成过程的紧密联系。这使人们开始认识到星系的形成过程与星系中心黑洞的增长、与星系核的活动密切相关,即星系中心的黑洞参与并影响了其“宿主”星系的演化过程(Heckman et al. 2004; Springel et al.) • 星系相互作用和并合的观测证据 • 星暴和AGN
Heckman & Kauffman, 2004, based on 23000 SDSS narrow emission line galaxies
The Host Galaxies of IR QSOs Have Same Pofile as Optical QSOs