Buras R, Rampp M, Janka H-Th, Kifonidis K
Max-Planck-Institut für Astrophysik, Karl-Schwarzschild-Strasse 1, D-85741 Garching, Germany.
Phys Rev Lett. 2003 Jun 20;90(24):241101. doi: 10.1103/PhysRevLett.90.241101. Epub 2003 Jun 19.
Two-dimensional hydrodynamic simulations of stellar core collapse are presented which for the first time were performed by solving the Boltzmann equation for the neutrino transport including a state-of-the-art description of neutrino interactions. Stellar rotation is also taken into account. Although convection develops below the neutrinosphere and in the neutrino-heated region behind the supernova shock, the models do not explode. This suggests missing physics, possibly with respect to the nuclear equation of state and weak interactions in the subnuclear regime. However, it might also indicate a fundamental problem with the neutrino-driven explosion mechanism.
本文给出了恒星核心坍缩的二维流体动力学模拟，这是首次通过求解中微子输运的玻尔兹曼方程进行的模拟，其中包括对中微子相互作用的最新描述。恒星自转也被考虑在内。尽管在中微子球以下以及超新星激波后的中微子加热区域会发展出对流，但这些模型并未爆炸。这表明可能存在缺失的物理过程，可能与核状态方程以及亚核区域的弱相互作用有关。然而，这也可能暗示中微子驱动爆炸机制存在一个根本性问题。
