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Multi-Messenger approach in IceCube E. Resconi

This conference discusses the use of cosmic rays, photons, and neutrinos to identify and study high-energy neutrino sources, as well as the future prospects and on-going activities in this field.

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Multi-Messenger approach in IceCube E. Resconi

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  1. Multi-Messenger approach in IceCube E. Resconi (Max-Planck-Institute for Nuclear Physics, Heidelberg) LAUNCH, Heidelberg, 21-23 March 2007

  2. CR   Multi-messenger • Phase 1: Use cosmic rays + photons information  HE neutrino sources identification (discovery !) • Phase 2: Use cosmic rays + photons + neutrinos  study hadronic interactions in astrophysical sites  cosmic ray origin  acceleration mechanisms Elisa Resconi

  3. CR   Multi-messenger • Phase 1: Use cosmic rays + photons information  HE neutrino sources identification (discovery !) • On-going activities • Future (realistic) prospectives Elisa Resconi

  4. IceCube Observables  AMANDA AMANDA+IceCube Arrival time ~ 5-7 nsec ~ 3 nsec Incoming direction 2° - 3° < 1° Estimated energy ± 0.5 order of magnitude Elisa Resconi

  5. IceCube Methods 1. The diffuse flux Multi-messenger argument Upper bound HE  flux Proton luminosity K. Mannheim, R.J. Protheroe, J. P. Rachen, Phys.Rev. D63 (2001) 023003 Cosmic Rays Neutrinos AMANDA-II 4 years IceCube 1 year MPR W&B Elisa Resconi

  6. IceCube Methods 2. The point source search (time integrated) Elisa Resconi

  7. 3 2 1 75o 60o 3 0 45o 2 -1 1 30o 0 -2 -1 15o -2 24h 0h -3 IceCube Methods 2. The point source search (time integrated) The IceCube coll., astro-ph/0611063, AMANDA-II: 2000-2004 (1001 live days), 4282 n from northern hemisphere No significant excess found Elisa Resconi

  8. IceCube Methods 2. The point source search (time integrated) Multi-messenger argument Non-thermal activity Single source candidate Nr. Observed / Nr. expected Flux Upper Limit 10-7 GeV cm-2 s-1 32 sources pre-selected Active Galactic Nuclei Mkn 421 6 / 7.37 0.42 Mkn 501 8 / 6.39 0.85 1ES1959+650 5 / 4.77 0.78 3C273 8 / 4.72 1.00 M87 6 / 6.08 0.49 The IceCube coll., astro-ph/0611063 Elisa Resconi

  9. IceCube Methods 2. The point source search (time integrated) Multi-messenger argument Non-thermal activity Single source candidate Nr. Observed / Nr. expected Flux Upper Limit 10-7 GeV cm-2 s-1 32 sources pre-selected X-ray Binary Systems SS433 4 / 6.14 0.27 LSI +61 303 5 / 4.81 0.74 Cyg X-1 8 / 7.01 0.77 Cyg X-3 7 / 6.48 0.68 The IceCube coll., astro-ph/0611063 Elisa Resconi

  10. IceCube Methods 2. The point source search (time integrated) 3C273 AMANDA-II Limits, 1001 days M. Ackermann, PhD Thesis Elisa Resconi

  11. IceCube Methods 4. the point source search time optimized Multi-messenger arguments Non-thermal activity Single source candidate Search for transient  Transient behavior Variability in astrophysics: an old problem a plethora of methods Elisa Resconi

  12. IceCube Methods 4. the point source search time optimized Phenomenology: selection of the “proxy” waveband(s)Statistics: light curve combination / interpretationData Analysis: detection probability improvement Elisa Resconi

  13. IceCube Methods 4. the point source search time optimized Phenomenology: selection of the “proxy” waveband(s) Active Galactic Nuclei Mkn 421 Mkn 501 1ES1959+650 X- and -rays 3C273 Radio and X-rays Elisa Resconi

  14. IceCube Methods 4. the point source search time optimized • Selection of the “proxy” waveband(s) Phenomenology: selection of the “proxy” waveband(s) X-ray Binary Systems SS433 LSI +61 303 Cyg X-1 Cyg X-3 ….. Radio Periodicity (multiwavelength) Elisa Resconi

  15. IceCube Methods 4. the point source search time optimized Statistics: light curve combination M. Tluczykont et al., JoP 60 (2007) 318-320 Elisa Resconi

  16. IceCube Methods 4. the point source search time optimized Statistics: light curve interpretationE.R. et al., JoP 60 (2007) 223-226 Maximum Likelihood Blocks: Light curve … … into time intervals … in which count rate constant (with a specified confidence) Based on maximum-likelihood (iterative) Rate Time Elisa Resconi

  17. IceCube Methods 4. the point source search time optimized Statistics: light curve interpretationE.R. et al., JoP 60 (2007) 223-226 E.R., L. Costamante, A. Gross RXTE-ASM MLBs RXTE-PCA Elisa Resconi

  18. IceCube Methods IceCube Methods • Errors related to the “degree of extrapolation” • Less data, more extrapolation, bigger errors • Non-gaussian shape (Mkn421, Mkn501, 1ES1959+650, PKS2155) • Most-Probable-Value (MPV) as characteristic level E.R., L. Costamante, A. Gross Flares Elisa Resconi

  19. IceCube Methods Time windows of HE emission: neutrinos ?? Elisa Resconi

  20. The hint: 1ES1959+650 X-ray: ASM, PCA    Good X-g correlation “orphan” flare: difficult to be accommodated in leptonic models -ray: Whipple

  21. IceCube Methods 4. the point source search time optimized Data Analysis: detection probability improvement P. Berghaus Preliminary Elisa Resconi

  22. IceCube Methods 4. the point source search time optimized Next tests: • Mkn501, 1997, AMANDA-B10 • 2005 – 2006, AMANDA-II • 2007, AMANDA+IceCube23 Elisa Resconi

  23. Neutrino Trigger of Multi-wavelength Campaign Future Prospective 5. On-line Strategies Significant Neutrino Observation Elisa Resconi

  24. Future Prospective:prototype test 27th September to 27th November 2006 ( E. Bernardini et al., astro-ph/0509396 ) AMANDA – MAGIC • Alerts sent • Reaction within one day Prototype-test already done! NToT (see E. Bernardini et al …) 5. Elisa Resconi

  25. CR   Future Prospective High Duty Cycle (60-70%) Large Field of View: ~2 • Off-line efforts for optimal searches Multi-Messenger Arguments: • CR energetic • Multi-wavelength picture of non-thermal sources • Models ….. Elisa Resconi

  26. Future Prospective High Duty Cycle (60-70%) Large Field of View: ~2 • On-line efforts: go to phase 2 Elisa Resconi

  27. “ Perfect ” place to pursued this type of physics Elisa Resconi

  28. Elisa Resconi

  29. IceCube Methods 2. The point source search (time integrated) Multi-messenger argument The IceCube coll., astro-ph/0611063 Elisa Resconi

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