论文标题
模拟核心倒塌超新星喷射中的晚喷射的气泡通胀
Simulating the inflation of bubbles by late jets in core collapse supernova ejecta
论文作者
论文摘要
我们进行了三维流体动力学模拟，研究了两个晚期喷气机与核心塌陷超新星（CCSN）的射出的相互作用，并研究了随着喷气机炎热热密度气泡的这种相互作用而导致的双极结构。新生的中央物体是中子之星（NS；或黑洞），在爆炸后约50至100天发射了这些喷头。与赤道平面附近的同一半径相比，气泡在极性方向上的光球越过光球。热气泡会释放更多的辐射，而光球在脆弱的气泡中更快地退缩。我们的结果加强了基于玩具模型的早期主张，即这种相互作用可能会导致光曲线的后期峰值，并且赤道观察者可能会看到光曲线迅速下降。我们的结果可能会对爆炸恒星的较早喷气机具有影响，要么是新生NS在CCSN中发射的喷气机，要么是与大型恒星在公共信封喷射超级诺娃（CEJSN）事件中合并的NS同伴的喷气机。我们的结果为快速蓝色光学瞬变的CEJSN方案增加了间接支持，例如AT2018COW，ZTF18ABVKWLA和CSSS161010。
We conducted three-dimensional hydrodynamical simulations to study the interaction of two late opposite jets with the ejecta of a core collapse supernova (CCSN), and study the bipolar structure that results from this interaction as the jets inflate hot-low-density bubbles. The newly born central object, a neutron star (NS; or a black hole), launches these jets at about 50 to 100 days after explosion. The bubbles cross the photosphere in the polar directions at much earlier times than the regions at the same radii near the equatorial plane. The hot bubbles releases more radiation and the photosphere recedes more rapidly in the tenuous bubble. Our results strengthen earlier claims that were based on toy models that such an interaction might lead to a late peak in the light curve, and that an equatorial observer might see a rapid drop in the light curve. Our results might have implications to much earlier jets that explode the star, either jets that the newly born NS launches in a CCSN, or jets that a NS companion that merges with the core of a massive star launches in a common envelope jets supernova (CEJSN) event. Our results add indirect support to the CEJSN scenario for fast blue optical transients, e.g., AT2018cow, ZTF18abvkwla, and CSS161010.
