2009 Fiscal Year Final Research Report
Systematic study on the astrophysical phenomena of gravitational collapse of massive stars based on the science of dense matter
| Project/Area Number |
18540295
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Numazu College of Technology |
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Principal Investigator |
SUMIYOSHI Kohsuke Numazu College of Technology, 教養科, 准教授 (30280720)
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| Project Period (FY) |
2006 – 2009
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| Keywords | 超新星 / 中性子星 / ブラックホール / ニュートリノ / 状態方程式 |
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| Research Abstract |
We studied the fate of the gravitational collapse of massive stars by the numerical simulations. We utilized the nuclear data for the extreme conditions of density and temperature to find out the influence of the microphysics. We revealed that the black hole formation occurs for massive stars of 40-50Msun by the systematic study. We found that the evolution toward the black hole formation is associated with a short burst of neutrinos, which is different from the case of supernova neutrinos. We proposed that the detection of such neutrinos is a probe to the extremely dense and hot matter inside the central core.
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