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Recent Progress in Astroparticle Physics

Recent Progress in Astroparticle Physics. Roger Blandford KIPAC Thanks to Lukasz Stawarz, Paul Simeon. Progress. Fermi Launched. New Facilities. Auger-S. H.E.S.S. PAMELA. VERITAS. The Pulsing g -ray Sky. ~50 g -raypulsars ~2000 radio pulsars Radio Quiet

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Recent Progress in Astroparticle Physics

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  1. Recent Progress in Astroparticle Physics Roger Blandford KIPAC Thanks to Lukasz Stawarz, Paul Simeon TeV-PA

  2. Progress TeV-PA

  3. Fermi Launched TeV-PA

  4. New Facilities Auger-S H.E.S.S. PAMELA VERITAS TeV-PA

  5. The Pulsing g-ray Sky • ~50 g-raypulsars • ~2000 radio pulsars • Radio Quiet • Millisecond Pulsars • 40?? Pulsars in 47 Tuc • Crab pulses detected by MAGIC • Anatomy of magnetosphere • Outer gap emission • Computing magnetosphere • Pulsars as tools • Mass-radius relation TeV-PA

  6. Supernova remnants • Multi-wavelength studies • Protons (pions)and electrons (Compton) • Some shocks are very efficient accelerators >50% • Magnetic amplification mG->mG • Emission coincident with X-rays, molecular gas • Hadronic vs leptonic emission debate unresolved RCW86 Not the Pevatrons? W51C TeV-PA

  7. Association with Star Formation Large Magellanic Cloud Starburst Galaxies TeV-PA

  8. Cosmic Ray Source Spectrum • Much new data • CREAM, PAMELA, Kaskade Grande, ACE • GALPROP is great but… • Many complications • Different sources SNR, PWN, OB stars • Propagation may not be diffusive • Limiting speed? • TeV isotropy =>L[R] not a power law? • Local effects -MILAGRO anisotropy • Need better cross sections! • However believe C,P symmetry- • Spatial transport in sources, IPM,ISM,IGM is just a function of • rigidity (momentum per unit charge ~ Larmor radius) • Features in electron spectrum may be seen in M nuclei (Seo) • at same rigidity Dawn of Precision Cosmic Ray Propagation? TeV-PA

  9. Shock Modeling • PIC, Monte Carlo codes • Conceptual advances • Magnetic amplification mechanisms • Only the highest energy particle escape • promptly • Magnetic bootstrap? • Most CRs decompress until • expansion sub-Alfvenic • Pulsars, stars more complex! TeV-PA

  10. Pulsar Wind Nebulae • Common sources especially at TeV • Displaced from pulsar • Synchrotron nebulae • Compton -CMB/synchrotron • Accelerating >10PeV electrons • Larmor radius – ~0.1pc • Cooling length - ~0.01pc • Requires E>~B!! • Pulsar wind –relativistic beaming? • Pulsar magnetosphere – ground-states of gyration synchrotron Crab Nebula Compton Pevatrons? TeV-PA

  11. Gamma Ray Bursts • Three types • Short -- NS coalescence • Long – Collapse of massive stars • Magnetars _ 0.3PG neutron stars • Fermi (Swift) • 240 GBM • Broad spectral coverage • 9 LAT (7 long, 2 short) • 5 solar mass isotropic energy • GeV photons -> G~1000 • Late emission (2000s) • Short bursts also SN?? TeV-PA

  12. Blazars • Relativistic jets from massive black holes pointed towards us • Blazars =BLLacs +FSRQ • Most Fermi sources • ~ 1000 so far, ~5000 eventually,~ 200 identified • TeV variation as rapid as 5 min! • Hadronic vs Leptonic again • Multi-wavelength science • Radio monitoring to X-correlate with g-ray • M87 misdirected GRB • 6 billion solar mass hole • Radio emission from ~60 grav radii • Gamma ray flare TeV-PA

  13. UHECR • Auger-S completed • GZK cutoff seen! • Better spectra • Composition measurements • Not photons • Protons vs iron TeV-PA

  14. REGRESS TeV-PA

  15. Dark Matter • No GeV excess in g-rays • Background fully • accounted for by • astrophysical sources • ????DAMA???? No ~600 GeV electron bump Is a similar “feature” seen in cosmic ray spectra? TeV-PA

  16. Extragalactic Background Is this all unresolved cosmic sources like AGN? TeV-PA

  17. UHECR Anisotropy • Anisotropy still exists but field of cosmic ray astronomy not yet created • Correlations with LSS in general • Cen A, cluster??? • Clusters? • 60 events! TeV-PA

  18. INGRESS TeV-PA

  19. Galactic Center Dark Matter Sources • Galactic center • Many sources, diffuse background to remove • WMAP Haze • Galactic dwarfs • Where are they • Should they show up? • No detections yet • Clusters • Primordial cosmic rays, AGN and dark matter annihilate – upper limits TeV-PA

  20. VHE Neutrinos • Ice Cube deployed and working well • No sources yet • Leptonic vs hadronic jets • GZK neutrinos (unless Fe) • Cosmic ray detector • Geophysics… • Radio, sonic detection TeV-PA

  21. Gravitational radiation • Energy graviton ~ 10-26+/-3 TeV! • LIGO achieved design sensitivity • S5 run analyzed – no detections • Some useful upper limits • Enhanced LIGO (2010) • Advanced LIGO (2014) • Great progress in computational • relativity • Test GR in strong field regime • First detections likely to be • NS binaries • Short GRBs? • EoS for cold nuclear matter • LISA TeV-PA

  22. Neutrino massand number CMB observations => Neutrino mass sum < 0.67 eV Planck working Will need to know H0 cf KATRIN (0.2 eV) EXO, MAJORANA… TeV-PA

  23. TRANSGRESS TeV-PA

  24. Radical ideas (not just particle theory) • Gordy Kane • Supersymmetric dark matter • already detected and will be • seen promptly by LHC • Eli Waxman • Don’t need additional • sources to explain PAMELA • data • Non dark matter sources • Young stars? • g-g pair production • Positron luminosity density ~ 0.1 g-ray density • Violation of Lorentz Invariance, Modified Gravity • Dark matter stars • ~1000Msun TeV-PA

  25. CONGRESS! TeV-PA

  26. DIGRESS TeV-PA

  27. The Illogic of Scientific Discovery TeV-PA

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