PPT-1 Cosmology with Galaxy Clusters from the SDSS maxBCG Sampl

Jochen Weller Annalisa Mana Tommaso Giannantonio Gert Hütsi Recontres de Moriond 2012 Theory Counting Halos in Simulations Count halos in Nbody simulations Measure universal mass function density of cold dark matter halos of given mass. Observations. Josh . Frieman. DES Project Director. Fermilab. and the University of Chicago. Science with a Wide-. Field Infrared Telescope in Space. Pasadena, February. 2012. 2. 2011 Nobel Prize in Physics. Galaxy Morphology and Environment. Main relation – . E’s more common in clusters than field. f(E. ) = fraction of ellipticals . f(Sp. ) = fraction of spirals. regular, symmetric cluster – . f(E. the merger/. sloshing. . cold. front . paradigm. :. A2142 . revisited. by XMM. Mariachiara Rossetti. (Università degli Studi di Milano & IASF Milano). D. . . Eckert. , S. De Grandi, S. . Molendi. galaxy group, Stephan Alex Szalay. The Johns Hopkins University. Collaborators: . T.. Budavari, C-W Yip . (JHU. ), . M. Mahoney (Stanford), . I. Csabai, L. Dobos (Hungary). The Age of Surveys. CMB Surveys (pixels). 1990 COBE 1000. 23.1 Our Parent Galaxy. 23.2 Measuring the Milky Way. Early “Computers”. 23.3 Galactic Structure. 23.4 The Formation of the Milky Way. 23.5 Galactic Spiral Arms. Density Waves. 23.6 The Mass of the Milky Way Galaxy. Galaxy Morphology and Environment. Main relation – . E’s more common in clusters than field. f(E. ) = fraction of ellipticals . f(Sp. ) = fraction of spirals. regular, symmetric cluster – . f(E. in collaboration with. Christine Jones & Bill Forman. Maxim Markevitch & John Zuhone. A . talk . for the . workshop “Diffuse . Emission from Galaxy Clusters in the Chandra . Era”. . by. Ryan E. Johnson. VG. So we want a color magnitude diagram for AGN so that by looking at the color of an AGN we can get its luminosity. But AGN have no fusion, why would we expect a color-magnitude relation?. The gas that accretes onto the black hole is still hot and so must follow the Blackbody Radiation law. . Contains more than 100 billion stars. Is one of the two largest among 40 galaxies in the Local Group. Our Solar System is located a little more than half way from the galactic center to the edge of the galactic disk.. 2nd Millennium BCE. BC. . . Mesopotamian cosmology . has a flat,circular Earth enclosed in a cosmic Ocean. 12. th. century BCE. C. . Rigveda. has some cosmological hymns, most notably the Nasadiya Sukta. Here’s the mystery story we’ll unfold…. Fuzzy blobs in the sky – new solar systems, or “galaxies”?. Observational tests. Herschel’s map of the “universe” . (what we today know as just our Galaxy). Summary Talk. Craig . Sarazin. University of Virginia. Observations of radio halos, mini-halos and . relics – review - . Tiziana. . Venturi. Nice overview: . p. roperties of halos, relics, mini-halos. I. MAGING . A. TMOSPHERIC . C. HERENKOV . T. ELESCOPES. J-F. . Glicenstein. IRFU, CEA-. Saclay. Outline. Imaging Atmospheric Cherenkov Telescopes. Indirect dark matter searches with IACT. Results on the Galactic Halo (H.E.S.S).