Abstract I suggest that the recently observed hot-dust elongated structure that likely engulfs the neutron star (NS) remnant of supernova (SN) 1987A was shaped by jets that the NS launched shortly after it acquired its natal kick velocity. I take the axis of the two post-kick jets to be along the long dimension of the hot-dust elongated structure, which I term the bipolar lobe. The jittering jets explosion mechanism accounts for the misalignment of the post-kick jets axis and the main-jets axis of the ejecta. For post-kick jets to shape the bipolar lobe their energy should have been about equal to the energy of the ejecta inner to the outer edge of the lobe, E 2 j ≈ E ej ( R lobe ) ≃ 4.6 × 10 48 erg . For an efficiency of ζ = 0.01 − 0.1 to convert accretion energy to post-kick jets’ energy I estimate that the post-kick accreted mass was M acc , pk ≈ 2 × 10 − 4 − 0.002 M ⊙ . The negative jets feedback mechanism, where jets remove some of the mass that could have been accreted, accounts for the limited amount of accreted mass. This study adds to the growing recognition of the importance of jets in core collapse supernovae, including post-explosion jets.

中文翻译：

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SN 1987A 中可能的后踢喷射

摘要 我认为，最近观察到的可能会吞没超新星 (SN) 1987A 的中子星 (NS) 残余物的热尘埃细长结构是由 NS 在获得其出生冲撞速度后不久发射的喷流形成的。我取两个后踢射流的轴沿着热尘细长结构的长度方向，我称之为双极叶。抖动射流爆炸机制解释了后踢射流轴和喷射物主射流轴的错位。对于形成双极瓣的后喷射射流，它们的能量应该大约等于瓣内边缘到外边缘的喷射物的能量，E 2 j ≈ E ej (R lobe ) ≃ 4.6 × 10 48 erg 。对于 ζ = 0.01 − 0.1 的效率将吸积能量转换为后踢射流的能量我估计后踢吸积质量为 M acc ，pk ≈ 2 × 10 − 4 − 0.002 M ⊙ 。负喷流反馈机制，其中喷流去除了一些可能被吸积的质量，解释了吸积质量的有限数量。这项研究增加了人们对喷流在核心坍缩超新星（包括爆炸后喷流）中的重要性的认识。