Advertisement

IFAE 2007 pp 225-230 | Cite as

Analysis of Neutrino Signals from SN1987A

  • G. Pagliaroli
  • M. L. Costantini
  • F. Vissani
Conference paper

Abstract

We study SN1987A neutrino events through a likelihood analysis with one-component (cooling) and two-component (accretion and cooling) emission model. We show that there is a 3.2σ hint for the initial accretion phase.

Keywords

Neutron Star Neutrino Oscillation Emission Model Neutrino Emission Neutrino Event 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    K. Hirata et al [Kamiokande-II Collaboration]: “Observation of a Neutrino Burst from the Supernova SN1987A”, Phys. Rev. Lett. 58 (1987) 1490CrossRefADSGoogle Scholar
  2. 2.
    R.M. Bionta et al: “Observation of a Neutrino Burst in Coincidence with Supernova SN1987A in the Large Magellanic Cloud”, Phys. Rev. Lett. 58 (1987) 1494CrossRefADSGoogle Scholar
  3. 3.
    E.N. Alekseev, L.N. Alekseeva, I.V. Krivosheina and V.I. Volchenko: Phys. Lett. B 205 (1988) 209CrossRefADSGoogle Scholar
  4. 4.
    V.L. Dadykin et al: JEPT Lett. 45 (1987) 593ADSGoogle Scholar
  5. 5.
    V.L. Dadykin, G.T. Zatsepin and O.G. Ryazhskaya: Sov. Phys. Usp. 32 (1989) 459; O.G. Ryazhskaya: Phys. Usp. 49 (2006) 1017CrossRefADSGoogle Scholar
  6. 6.
    T.J. Loredo, D.Q. Lamb: P. R. D. 65, (2002) 063002CrossRefGoogle Scholar
  7. 7.
    G. Pagliaroli, M.L. Costantini, A. Ianni and F. Vissani: astro-ph/0705.4032 (2007)Google Scholar
  8. 8.
    H.T. Janka et al: “Theory of Core-Collapse Supernovae”, Phys. Report 442 (2007) 38CrossRefADSGoogle Scholar
  9. 9.
    H.T. Janka: A & A 368 (2001) 527ADSGoogle Scholar
  10. 10.
    D.K. Nadyozhin, “The neutrino radiation for a hot neutron star formation and the envelope outburst problem”, Astrophys. Space Sci. 53 (1978) 131CrossRefADSGoogle Scholar
  11. 11.
    G.L. Fogli, E. Lisi, D. Montanino and A. Palazzo: “Supernova neutrino oscillations: a simple analytical approach”, Phys. Rev. D 65 (2002) 073008CrossRefADSGoogle Scholar
  12. 12.
    A. Strumia and F. Vissani: “Neutrino masses and mixings and...”, hepph/0606054, a review regularly updated on the webGoogle Scholar
  13. 13.
    A. Strumia and F. Vissani: “Precise quasielastic neutrino nucleon cross section”, Phys. Lett. B 564 (2003) 42CrossRefADSGoogle Scholar
  14. 14.
    C.B. Bratton et al: “Angular distribution of events from SN1987A”, Phys. Rev. D 37 (1988) 3361CrossRefADSGoogle Scholar
  15. 15.
    M.T. Keil, G.G. Raffelt and H.T. Janka: “Monte Carlo study of supernova neutrino spectra formation”, Astrophys. J. 590 (2003) 971CrossRefADSGoogle Scholar
  16. 16.
    H.T. Janka et al: “Neutrinos from type II supernovae and the neutrino driven supernova mechanism”, Vulcano 1992 Proceedings, 345–374Google Scholar
  17. 17.
    J.N. Bahcall: cap 15 of “Neutrino astrophysics”, Cambridge University Press, 1989Google Scholar

Copyright information

© Springer-Verlag Italia 2008

Authors and Affiliations

  • G. Pagliaroli
    • 1
  • M. L. Costantini
    • 1
  • F. Vissani
    • 2
  1. 1.University of L’AquilaCoppito (AQ)Italy
  2. 2.Laboratori Nazionali del Gran SassoINFNAssergi (AQ)Italy

Personalised recommendations