PPT-Radio Mode Feedback in Giant Elliptical Galaxies

Paul Nulsen CfA Christine Jones CfA William Forman CfA Eugene Churazov MPA Laurence David CfA Brian McNamara Waterloo Steven Murray CfA AGN Outbursts in Giant . Kyle Davis. Constructed for the gym and built to last for all who want a great workout…….. What is an Elliptical Trainer?. An elliptical trainer also known as cross-trainer. Stationary exercise machine used to . Except for nearby, we can only see bright galaxies. I will ignore dwarf . spheroidal. (. dSph. ) and dwarf elliptical (. dE. ) classifications. Galaxies . come in four broad categories, based on their appearance. Nikos Fanidakis. and. C.M. Baugh, R.G. Bower, S. Cole, C. Done, C. S. . Frenk. 9. th. Hellenic Astronomical Conference, Athens, Greece September 20-24, 2009. David Roberts, Jake Cohen, & Jing Lu. Brandeis University. Lakshmi . Saripalli. & Ravi . Subrahmanyan. Raman Research Institute. 1. Radio Galaxies. X-Shaped Radio Galaxies. Cheung’s Sample. Our Evolving Universe. 1. Other galaxies. Telescopic images of the night sky reveal many other galaxies. What do they look like?. are they all like the Milky Way?. Where are they?. spread randomly through space, or grouped?. Most of the power of galaxies come from the stars. Almost all nearby galaxies. Some galaxies have very bright sources right at the center. Can be as bright as a galaxy!. Or even much brighter. Called . The Hubble Tuning-Fork Diagram. This is the traditional scheme for classifying galaxies:. Elliptical Galaxies. Elliptical galaxies. have smooth, round distributions of stars. They resemble globular clusters, except they are much larger. They . . Causeway. Tiia Valli. It is located in County Antrim, on the northeast coast of Northern Ireland, about two miles (3 km) north of the town of . Bushmills. .. . Bushmills. . Distillery. Antrim. The. 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.. Jeremy . Harwood. YERAC 2011. Background Image courtesy of NASA/CXC/CfA/R.Kraft et al.; MPIfR/ESO/APEX/A. Weiss et al.; ESO/WFI. What are radio galaxies?. Type of active galaxy. Fanaroff and Riley class I. Extragalactic radio . s. ources and their importance for astronomy. Leiden 10-13 June 2013. Ron Ekers. CSIRO, . Australia. George Miley. The largest, the furthest, the most powerful, and to some of us the most fascinating objects known in the Universe are to be found among the radio sources associated with some elliptical galaxies and QSO’s. In recent years it has become apparent that they are also objects of considerable beauty.. Galaxies are . not. . alike. For every general rule I give, one can find exceptions. Classifying galaxies is difficult. They look different in different wavelengths. If the galaxy is moving, you have to correct for red-shift. Laura . Magrini. INAF- . Osservatorio. . Astrofisico. di . Arcetri. In Our Galaxy. Open clusters (disc population): . Many (~2200 known clusters). . even more new candidates in the inner disc from infrared surveys . 127 pISSN 2384-1095eISSN 2384-1109 Department of Radiology, Jeju National University Hospital, Jeju-si, KoreaDepartment of Pathology, Jeju National University Hospital, Jeju-si, Korea www.i-mri.org 12