PPT-Quasars and

Massive Black Holes Stephen Fine Outline What is a quasar How do we study quasar black holes Why do we study quasar black holes What are the current difficulties in studying black holes How can we improve on the current situation. The Xray absorbing gas is often called a warm absorber because UV observations show that it is accompanied by very weak or no signi64257cant absorption at the H I Lyman limit 912 A The gas must be substantially ionized much more H II than H I and he Lesson Objectives. To appreciate that some galaxies emit far more energy at some wavelengths that can be explained simply in terms of ‘starlight’.. To recall the types of active galaxies.. To show an understanding of the mechanism for producing large quantities of radiation from active galaxies.. :. Active Galactic Nuclei: powerful energy sources in . “nuclei” . (. central ~1 pc) . of some galaxies. Main types. : . Seyferts. , radio galaxies and quasars. Other variants we’ll skip.. Power source: accretion of matter onto a supermassive black . Yue . Shen. Carnegie Observatories. In collaboration with Brandon . Kelly (UCSB). M. otivation. T. he abundance (and clustering) of quasars are key to understand the evolution of quasars/SMBHs in the hierarchical structure formation paradigm . . Reionization. . . Chris . Carilli. (. M/N. RAO). Vatican Summer School June 2014. I. Introduction: Cosmic . Reionization. Concept . . Cool gas in z > 6 galaxies: quasar hosts. Constraints on evolution of neutral Intergalactic Medium (IGM). M87. Hercules A radio jets. Active Galactic Nuclei (AGNs) and Supermassive Black Holes. The identification by Maarten Schmidt (1963, . Nature. , 197, 1040) of the radio source 3C 273 as a . “. star. http://www.pa.uky.edu. Only 10% of the class has completed the evaluations so far.. I will add 5 points on your final exam if you complete the evaluation.. Today’s model for the formation of the Milky Way and other galaxies. These are called . active. . galaxies. .. . Active Galaxies and Quasars. By looking far away and back in time, astronomers have discovered:. The origin of active galaxy energy sources and outbursts were closely related to the formation and history of galaxies.. Acceleration of Quasar-Driven Galactic Winds. and on the . Density Structure of the CGM. Jonathan Stern (MPIA. ). Alexander von Humboldt Fellow. May 2016. Papers. :. 1. Stern, . Laor. & Baskin (2014a), MNRAS... Gordon Richards. Drexel University. With thanks to. Michael Strauss, . Yue. . Shen. (Princeton), Don Schneider, Nic Ross (Penn State), Adam . Myers (Illinois. ), Phil Hopkins (. Berkeley. ), . and a host of other people from the SDSS Collaboration. #2 . Grades are posted on course website. Average = . 126/180, . s.d. . = . 27 (Section 1). 124/180, . s.d. . = 27 (Section 2). Highest . 174/. 180. Scores below 100 => “serious concerns”. Michael Strauss. 1100 Nights, 20 years. Princeton astronomers have . been involved in APO and ARC from the beginning. . Jim Gunn Jerry . Ostriker. Al . This book provides an up-to-date and comprehensive account of quasars and active galactic nuclei (AGN). The latest observations and theoretical models are combined in this clear, pedagogic textbook for advanced undergraduates and graduate students. Researchers will also find this wide-ranging and coherent review invaluable. Throughout, detailed derivations of important results are provided to ensure the book is self contained. And theories and models are critically compared with detailed and often puzzling observations from across the spectrum. We are led through all the key topics, including quasar surveys, continuum radiation, time variability, relativistic beaming, accretion disks, jet sidedness, gravitational lensing, unification and detailed, multi-wavelength studies of individual objects. Particular emphasis is placed on radio, X- and gamma-ray observations--not covered in depth in any previous book. All those entering into this exciting and dynamic area of astronomy research will find this book an ideal introduction. Katrien. C. . Steenbrugge. , Katherine M. Blundell and . Zdenka. . Kuncic. Instituto. de . Astronom. ía. , UCN. Department of Physics, University of Oxford. School of Physics, University of Sydney.