Sumiyoshi K, Yamada S, Suzuki H, Chiba S
Numazu College of Technology, Ooka 3600, Numazu, Shizuoka 410-8501, Japan.
Phys Rev Lett. 2006 Sep 1;97(9):091101. doi: 10.1103/PhysRevLett.97.091101. Epub 2006 Aug 30.
The gravitational collapse of a nonrotating, black-hole-forming massive star is studied by nu-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.
通过对两组不同的致密物质现实状态方程进行中微子辐射流体动力学模拟，研究了非旋转的、形成黑洞的大质量恒星的引力坍缩。我们表明，该事件产生的中微子数量与普通超新星一样多，但在光度和光谱上具有独特特征，这将是黑洞形成的明确迹象。更重要的是，中微子信号对状态方程的差异非常敏感，可作为探测致密物质性质的有用探针。该事件将是独特的，因为它们仅通过中微子（可能还有引力波）发光，而不是通过光子发光，因此它们应该是中微子天文学的重要目标。
