论文标题
低质量中子星爆炸的R过程核合成
R-process nucleosynthesis of low-mass neutron star explosions
论文作者
论文摘要
我们表明，低质量的中子恒星从其表面清除后会延迟爆炸。我们将牛顿水动力学与$ \ sim 4500 $同位素的核反应网络相结合，以研究爆炸过程中的核合成和中微子发射。电子抗神经爆发的峰值光度为$ \ sim 3 \ sim 3 \ times10^{50} $ erg s $^{ - 1} $，而将射流加热到$ \ sim 10^{9} $K。在Eigna中实现了强大的R-Process核合成。在第二和第三R过程附近的灯笼和重元素合成为核合成的最终产物，这表明低质量中子恒星爆炸可能是太阳化学元件的重要来源。
We show that a low-mass neutron star undergoes delayed explosion after mass removal from its surface. We couple the Newtonian hydrodynamics to a nuclear reaction network of $\sim 4500$ isotopes to study the nucleosynthesis and neutrino emission during the explosion. An electron anti-neutrino burst with a peak luminosity of $\sim 3\times10^{50}$ erg s$^{-1}$ is emitted while the ejecta is heated to $\sim 10^{9}$ K. A robust r-process nucleosynthesis is realized in the ejecta. Lanthanides and heavy elements near the second and third r-process peaks are synthesized as end products of nucleosynthesis, suggesting that low-mass neutron star explosions could be an important source of solar chemical elements.
