PPT-‘Physics of Radio Galaxies’

Anatomy of Extragalactic R adio Sources Miley Symposium May 2013 Chris Carilli NRAO Radio Galaxies as beacons to early massive galaxy formation Anatomy at low redshift High luminosity FRII L. 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 . :. 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 . 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. Lawrence Rudnick, University of Minnesota. Deep+wideband+polarization. ~30. m. Jy,800sq . deg. 700-1800. More science using subsamples. This is single project from large survey. Feasible with JVLA only: NVSS level investment. 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 . Hydrogen Gas. AAO. . Colloquium . . 5th February 2015. Philip Lah. Collaborators:. Frank Briggs (ANU. ). Jayaram Chengalur (NCRA) . Matthew Colless (. ANU). Roberto De Propris (FINCA. 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 . Craig Sarazin. University of Virginia. M86. (. Randall et al. 2008). . Abell. 2052. (Blanton et . al. . 2011). Optical light dominated by bulge. Last star formation typically billions of years ago. 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.. Priest Associate Professor of Physics. Galaxies. 9/4/18. Milky Way Galaxy Contents & Motions. 9/11/18. Milky Way Environment & the Local Group. 9/18/18. Other Galaxies & Clusters of Galaxies. The Hubble Deep Field. 10 day exposure –field located in the Big Dipper. Edwin Hubble. Edwin . Hubble. Hubble’s Galaxy Classification . Spiral Galaxies. galaxies like the Milky Way with arcing structures lying in a plane and emanating from the nuclear bulge. Are Nebulae within or outside of our galaxy??. Nebula comes from a Greek word meaning Cloud. April 1920, National Academy of Sciences , Washington, DC. Harlow Shapley (had determined size of Milky Way Galaxy) pushed that nebulae were relatively close by objects..