超新星中心能量源对回落物质的排斥作用
Repulsion of fallback matter due to central energy source in supernova
摘要：
使用新发现的自相似解讨论了由中心物体的能量沉积所冲击和排斥的回退物质的流动。当绝热指数小于或等于4/3时，存在最大质量吸积率。否则，我们可以找到一个解决方案，与任意大的吸积率适当收缩的能量沉积区。将自相似解应用于超新星回落，我们讨论了新生恒星或磁星的命运如何取决于回落吸积和它们的自旋下降功率。结合后退吸积将表面磁场埋入地壳的条件，我们认为超新星后退速度为dM_{fb} /dt ~ 10^{-（4-6）} M_sun /s可能是银河系年轻中子星多样性的主要来源，即：旋转动力的恒星、磁星和中心致密物体。
英文摘要：
The flow of fallback matter being shocked and repelled back by an energy deposition from a central object is discussed by using newly found self-similar solutions. We show that there exists a maximum mass accretion rate if the adiabatic index of the flow is less than or equal to 4/3. Otherwise we can find a solution with an arbitrarily large accretion rate by appropriately shrinking the energy deposition region. Applying the self-similar solution to supernova fallback, we discuss how the fate of newborn pulsars or magnetars depends on the fallback accretion and their spin-down power. Combining the condition for the fallback accretion to bury the surface magnetic field into the crust, we argue that supernova fallback with a rate of dM_{fb}/dt ~ 10^{-(4-6)} M_sun /s could be the main origin of the diversity of Galactic young neutron stars, i.e., rotation-powered pulsars, magnetars, and central compact objects.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
