论文标题
踢后喷头在核心倒塌超新星中的含义
Implications of post-kick jets in core collapse supernovae
论文作者
论文摘要
我研究了以下假设：塑造核心塌陷超新星（CCSN）残留物的轴对称形态特征的喷射是踢后喷射的，即中子恒星（NS）在爆炸后以及在获得其出色的踢球后发射了这些喷气机。我发现这种假设意味着CCSN祖细胞的爆发前核心具有足够的角动量波动，可以支持爆炸恒星的抖动喷气机。从发现塑形喷射的发现既不倾向于与踢速度保持一致，也不会垂直于此，我认为假设塑形喷射是踢后喷头的假设具有以下含义。 （1）爆炸后约10 s的爆炸中心约5000 km的NS积聚质量。 （2）积聚气体所需的角动量波动以解释喷气机角度的介质值也足以支撑间歇性的预击积分磁盘，就在爆炸之前和期间。这样的间歇性积聚磁盘可能会发射喷气式飞机，在抖动喷气机爆炸机制的框架中爆炸恒星。这表明，最有可能塑造喷射是抖动喷气机爆炸机制中的最后喷气机，而不是踢后喷头。 （3）抖动的喷气机爆炸机制预计黑洞的鼻踢速度很小。
I examine the assumption that the jets that shape the axisymmetrical morphological features of core collapse supernova (CCSN) remnants are post-kick jets, i.e., the neutron star (NS) launches these jets after the explosion and after it acquired its natal kick velocity. I find that this assumption implies that the pre-collapse cores of CCSN progenitors have sufficient angular momentum fluctuations to support jittering jets that explode the star. From the finding that the shaping-jets neither tend to be aligned with the kick velocity nor to be perpendicular to it I argue that the assumption that the shaping-jets are post-kick jets has the following implications. (1) The NS accretes mass at a radius of ~5000km from the center of the explosion at ~10 s after explosion. (2) The required angular momentum fluctuations of the accreted gas to explain the medium values of jets-kick angles are also sufficient to support an intermittent pre-kick accretion disk, just before and during the explosion. Such an intermittent accretion disk is likely to launch jets that explode the star in the frame of the jittering jets explosion mechanism. This suggests that most likely the shaping-jets are the last jets in the jittering jets explosion mechanism rather than post-kick jets. (3) The jittering jets explosion mechanism expects that black holes have small natal kick velocities.
