Neutrino Signals from the Formation of a Black Hole: A Probe of the Equation of State of Dense Matter

K. Sumiyoshi, S. Yamada, H. Suzuki, and S. Chiba
Phys. Rev. Lett. 97, 091101 – Published 30 August 2006

Abstract

The gravitational collapse of a nonrotating, black-hole-forming massive star is studied by ν-radiation-hydrodynamical simulations for two different sets of realistic equation of state of dense matter. We show that the event will produce as many neutrinos as the ordinary supernova, but with distinctive characteristics in luminosities and spectra that will be an unmistakable indication of black hole formation. More importantly, the neutrino signals are quite sensitive to the difference of equation of state and can be used as a useful probe into the properties of dense matter. The event will be unique in that they will be shining only by neutrinos (and, possibly, gravitational waves) but not by photons, and hence they should be an important target of neutrino astronomy.

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  • Received 16 September 2005

DOI:https://doi.org/10.1103/PhysRevLett.97.091101

©2006 American Physical Society

Authors & Affiliations

K. Sumiyoshi1,2,*, S. Yamada3, H. Suzuki4, and S. Chiba5

  • 1Numazu College of Technology, Ooka 3600, Numazu, Shizuoka 410-8501, Japan
  • 2National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
  • 3Science & Engineering and Advanced Research Institute for Science and Engineering, Waseda University, Okubo, 3-4-1, Shinjuku, Tokyo 169-8555, Japan
  • 4Faculty of Science and Technology, Tokyo University of Science, Yamazaki 2641, Noda, Chiba 278-8510, Japan
  • 5Advanced Science Research Center, Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1195, Japan

  • *Electronic address: sumi@numazu-ct.ac.jp

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Issue

Vol. 97, Iss. 9 — 1 September 2006

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