Literature on which the following results are based: Pfrommer, 2008, - PowerPoint PPT Presentation

Cosmic rays in galaxy clusters Physical processes in galaxy clusters Non-thermal emission from galaxy clusters High-resolution simulations of galaxy clusters Literature on which the following results are based: Pfrommer, 2008, MNRAS, in print, ArXiv:0707.1693, Simulating cosmic rays in clusters of galaxies – III. Non-thermal scaling relations and comparison to observations Pfrommer, Enßlin, Springel, 2008, MNRAS, in print, ArXiv:0707.1707, Simulating cosmic rays in clusters of galaxies – II. A unified scheme for radio halos and relics with predictions of the γ -ray emission Pfrommer, Enßlin, Springel, Jubelgas, and Dolag, 2007, MNRAS, 378, 385, Simulating cosmic rays in clusters of galaxies – I. Effects on the Sunyaev-Zel’dovich effect and the X-ray emission Pfrommer, Springel, Enßlin, Jubelgas 2006, MNRAS, 367, 113, Detecting shock waves in cosmological smoothed particle hydrodynamics simulations Enßlin, Pfrommer, Springel, and Jubelgas, 2007, A&A, 473, 41, Cosmic ray physics in calculations of cosmological structure formation Jubelgas, Springel, Enßlin, and Pfrommer, A&A, in print, astro-ph/0603485, Cosmic ray feedback in hydrodynamical simulations of galaxy formation Christoph Pfrommer Cosmic Rays in Galaxy Clusters

Cosmic rays in galaxy clusters Physical processes in galaxy clusters Non-thermal emission from galaxy clusters High-resolution simulations of galaxy clusters Radiative simulations – flowchart Christoph Pfrommer Cosmic Rays in Galaxy Clusters

Cosmic rays in galaxy clusters Physical processes in galaxy clusters Non-thermal emission from galaxy clusters High-resolution simulations of galaxy clusters Radiative simulations with cosmic ray (CR) physics Christoph Pfrommer Cosmic Rays in Galaxy Clusters

Cosmic rays in galaxy clusters Physical processes in galaxy clusters Non-thermal emission from galaxy clusters High-resolution simulations of galaxy clusters Radiative simulations with extended CR physics Christoph Pfrommer Cosmic Rays in Galaxy Clusters

Cosmic rays in galaxy clusters Physical processes in galaxy clusters Non-thermal emission from galaxy clusters High-resolution simulations of galaxy clusters Radiative cool core cluster simulation: gas density 15 10 2 15 15 10 10 10 10 1 5 5 5 y [ h -1 Mpc ] � 1 + δ gas � 0 0 0 10 0 -5 -5 -5 -10 -10 -10 10 -1 -15 -15 -15 -15 -15 -10 -10 -5 -5 0 0 5 5 10 10 15 15 -15 -10 -5 0 5 10 15 x [ h -1 Mpc ] Christoph Pfrommer Cosmic Rays in Galaxy Clusters

Cosmic rays in galaxy clusters Physical processes in galaxy clusters Non-thermal emission from galaxy clusters High-resolution simulations of galaxy clusters Mass weighted temperature 15 15 15 10 8 10 10 10 5 5 5 10 7 � T ρ gas � / � ρ gas � [K] y [ h -1 Mpc ] 0 0 0 10 6 -5 -5 -5 -10 -10 -10 10 5 -15 -15 -15 -15 -15 -10 -10 -5 -5 0 0 5 5 10 10 15 15 -15 -10 -5 0 5 10 15 x [ h -1 Mpc ] Christoph Pfrommer Cosmic Rays in Galaxy Clusters

Cosmic rays in galaxy clusters Physical processes in galaxy clusters Non-thermal emission from galaxy clusters High-resolution simulations of galaxy clusters Mach number distribution weighted by ε diss 15 15 15 10 10 10 10 5 5 5 ε diss � y [ h -1 Mpc ] ε diss / � ˙ 0 0 0 �M ˙ -5 -5 -5 -10 -10 -10 -15 1 -15 -15 -15 -15 -10 -10 -5 -5 0 0 5 5 10 10 15 15 -15 -10 -5 0 5 10 15 x [ h -1 Mpc ] Christoph Pfrommer Cosmic Rays in Galaxy Clusters

Cosmic rays in galaxy clusters Physical processes in galaxy clusters Non-thermal emission from galaxy clusters High-resolution simulations of galaxy clusters Mach number distribution weighted by ε CR , inj 15 15 15 10 10 10 10 5 5 5 ε CR , inj � y [ h -1 Mpc ] ε CR , inj � / � ˙ 0 0 0 �M ˙ -5 -5 -5 -10 -10 -10 -15 1 -15 -15 -15 -15 -10 -10 -5 -5 0 0 5 5 10 10 15 15 -15 -10 -5 0 5 10 15 x [ h -1 Mpc ] Christoph Pfrommer Cosmic Rays in Galaxy Clusters

Cosmic rays in galaxy clusters Physical processes in galaxy clusters Non-thermal emission from galaxy clusters High-resolution simulations of galaxy clusters Mach number distribution weighted by ε CR , inj ( q > 30 ) 15 15 15 10 10 10 10 ε CR , inj � ( q > 30) 5 5 5 y [ h -1 Mpc ] 0 0 0 ε CR , inj � / � ˙ -5 �M ˙ -5 -5 -10 -10 -10 -15 1 -15 -15 -15 -15 -10 -10 -5 -5 0 0 5 5 10 10 15 15 -15 -10 -5 0 5 10 15 x [ h -1 Mpc ] Christoph Pfrommer Cosmic Rays in Galaxy Clusters

Cosmic rays in galaxy clusters Physical processes in galaxy clusters Non-thermal emission from galaxy clusters High-resolution simulations of galaxy clusters CR pressure P CR 15 10 -12 15 15 10 10 10 10 -13 70 ] � P CR ρ gas � / � ρ gas � [erg cm − 3 h 2 5 5 5 10 -14 y [ h -1 Mpc ] 0 0 0 10 -15 -5 -5 -5 10 -16 -10 -10 -10 -15 10 -17 -15 -15 -15 -15 -10 -10 -5 -5 0 0 5 5 10 10 15 15 -15 -10 -5 0 5 10 15 x [ h -1 Mpc ] Christoph Pfrommer Cosmic Rays in Galaxy Clusters

Cosmic rays in galaxy clusters Physical processes in galaxy clusters Non-thermal emission from galaxy clusters High-resolution simulations of galaxy clusters Relative CR pressure P CR / P total 15 10 0 15 15 10 10 10 5 � P CR / P tot ρ gas � / � ρ gas � 5 5 y [ h -1 Mpc ] 0 10 -1 0 0 -5 -5 -5 -10 -10 -10 -15 10 -2 -15 -15 -15 -15 -10 -10 -5 -5 0 0 5 5 10 10 15 15 -15 -10 -5 0 5 10 15 x [ h -1 Mpc ] Christoph Pfrommer Cosmic Rays in Galaxy Clusters

Cosmic rays in galaxy clusters Physical processes in galaxy clusters Non-thermal emission from galaxy clusters High-resolution simulations of galaxy clusters Relative CR pressure P CR / P total 4 10 0 4 4 2 2 2 � P CR / P tot ρ gas � / � ρ gas � y [ h -1 Mpc ] 0 10 -1 0 0 -2 -2 -2 -4 10 -2 -4 -4 -4 -4 -2 -2 0 0 2 2 4 4 -4 -2 0 2 4 x [ h -1 Mpc ] Christoph Pfrommer Cosmic Rays in Galaxy Clusters

Cosmic rays in galaxy clusters Physical processes in galaxy clusters Non-thermal emission from galaxy clusters High-resolution simulations of galaxy clusters CR electron versus CR proton pressure 15 15 10 0 15 15 15 15 10 10 10 10 10 10 10 -2 5 5 � P CRe / P tot ρ gas � / � ρ gas � 5 5 5 5 � P CR / P tot ρ gas � / � ρ gas � y [ h -1 Mpc ] y [ h -1 Mpc ] 0 0 10 -1 0 0 0 0 -5 -5 -5 -5 -5 -5 10 -3 -10 -10 -10 -10 -10 -10 -15 -15 10 -2 -15 -15 -15 -15 -10 -10 -5 -5 0 0 5 5 10 10 15 15 -15 -10 -5 0 5 10 15 -15 -15 -15 -15 -10 -10 -5 -5 0 0 5 5 10 10 15 15 -15 -10 -5 0 5 10 15 x [ h -1 Mpc ] x [ h -1 Mpc ] Relative pressure of primary CR electrons. Relative pressure of CR protons. Christoph Pfrommer Cosmic Rays in Galaxy Clusters

Cosmic rays in galaxy clusters Physical processes in galaxy clusters Non-thermal emission from galaxy clusters High-resolution simulations of galaxy clusters Primary versus secondary CR electrons 15 15 10 -1 15 15 15 15 10 -2 10 10 10 10 10 10 10 -2 10 -3 5 5 � P CRe / P tot ρ gas � / � ρ gas � 5 5 � P CRe / P tot ρ gas � / � ρ gas � 5 5 10 -4 y [ h -1 Mpc ] y [ h -1 Mpc ] 0 0 0 0 0 0 10 -5 -5 -5 -5 -5 -5 -5 10 -6 10 -3 -10 -10 -10 -10 -10 -10 10 -7 -15 -15 10 -8 -15 -15 -15 -15 -10 -10 -5 -5 0 0 5 5 10 10 15 15 -15 -10 -5 0 5 10 15 -15 -15 -15 -15 -10 -10 -5 -5 0 0 5 5 10 10 15 15 -15 -10 -5 0 5 10 15 x [ h -1 Mpc ] x [ h -1 Mpc ] Relative pressure of primary CR electrons. Rel. pressure of secondary CR electrons. Christoph Pfrommer Cosmic Rays in Galaxy Clusters

Cosmic rays in galaxy clusters Primary radio emission Non-thermal emission from galaxy clusters Hadronic radio and γ -ray emission Cosmic rays and radiative processes Christoph Pfrommer Cosmic Rays in Galaxy Clusters

Cosmic rays in galaxy clusters Primary radio emission Non-thermal emission from galaxy clusters Hadronic radio and γ -ray emission Cosmic rays and radiative processes Christoph Pfrommer Cosmic Rays in Galaxy Clusters

Cosmic rays in galaxy clusters Primary radio emission Non-thermal emission from galaxy clusters Hadronic radio and γ -ray emission Cosmic rays and radiative processes Christoph Pfrommer Cosmic Rays in Galaxy Clusters

Cosmic rays in galaxy clusters Primary radio emission Non-thermal emission from galaxy clusters Hadronic radio and γ -ray emission Cosmic rays and radiative processes Christoph Pfrommer Cosmic Rays in Galaxy Clusters

Cosmic rays in galaxy clusters Primary radio emission Non-thermal emission from galaxy clusters Hadronic radio and γ -ray emission Cosmic web: Mach number 15 15 15 10 10 10 10 5 5 5 ε diss � y [ h -1 Mpc ] ε diss / � ˙ 0 0 0 �M ˙ -5 -5 -5 -10 -10 -10 -15 1 -15 -15 -15 -15 -10 -10 -5 -5 0 0 5 5 10 10 15 15 -15 -10 -5 0 5 10 15 x [ h -1 Mpc ] Christoph Pfrommer Cosmic Rays in Galaxy Clusters

Cosmic rays in galaxy clusters Primary radio emission Non-thermal emission from galaxy clusters Hadronic radio and γ -ray emission Radio web: primary CRe (1.4 GHz) 15 15 15 10 0 10 10 10 5 5 5 2 ] 10 -2 S ν ,primary [ mJy arcmin -2 h 70 y [ h -1 Mpc ] 0 0 0 10 -4 -5 -5 -5 10 -6 -10 -10 -10 -15 10 -8 -15 -15 -15 -15 -10 -10 -5 -5 0 0 5 5 10 10 15 15 -15 -10 -5 0 5 10 15 x [ h -1 Mpc ] Christoph Pfrommer Cosmic Rays in Galaxy Clusters