Reverberation mapping
Reverberation mapping
Reverberation mapping
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Recap: Black Holes that are switched on are“active”Measurements of gas &stellar kinematics showmost/all nucleated galaxiesharbor black hole at center(Kormendy & Richstone ‘95,Magorrian et al ‘98, Gebhardtet al 2000)BH mass scales withgalaxy bulge mass soformation linked, althoughunclear how. Many ofthese BHs “switched off”Peterson “An Introduction to Active Galactic Nuclei”Few % of galaxies - black hole is actively accreting material - releases large amount ofenergy over broad frequency band, from small region -nucleus - these powerful emitterscalled active galactic nuclei (AGN)
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