Six indications of radical new physics in supernovae Ia

Circular polarizations of gravitational waves from core-collapse supernovae: a clear indication of rapid rotation

We propose to employ the circular polarization of gravitational waves emitted by core-collapse supernovae as an unequivocal indication of rapid rotation deep in their cores. It has been demonstrated by three dimensional simulations that non-axisymmetric accretion flows may develop spontaneously via hydrodynamical instabilities in the post-bounce cores. It is not surprising then that the gravitational waves emitted by such fluid motions are circularly polarized. We show in this letter that a network of the second generation detectors of gravitational waves worldwide may be able to detect such p…

Host Galaxy Effects in the Susy Model for Supernovae Ia

For more than forty years virtually all work on the theory of type Ia Supernovae (SN Ia) has assumed that these explosions were due to the transfer of mass to a degenerate star from a partner in a binary system. In these binary models, when the mass of one partner closely approaches the Chandrasekhar maximum for a stable degenerate system, fusion can be initiated and the star explodes. However, there are now a number of indications that fusion could instead be triggered by a phase transition in a sub-Chandrasekhar white dwarf star. Although these indications provide no clue as to what specific…

SN 2024bfu、SN 2025qe与Iax型超新星的早期光变曲线

SN 2024bfu, SN 2025qe, and the early light curves of type Iax supernovae

本研究通过对两颗爆炸后极早期被发现的Iax型超新星的观测及样本对比，发现该类超新星上升时间更短、上升指数更低，符合纯爆燃爆炸模型的相关预测。

寻找IIb型超新星中的前兆爆发

Search for precursor eruptions among Type IIb supernovae

几颗IIb型超新星（SNe）的祖星显示出扩展氢包层的迹象。这些包层可能是明亮的高能爆炸前事件的结果，即所谓的前兆爆发。我们使用的Palomar瞬态工厂（PTF）爆炸前的27个附近的IIb型SNe的样本观察，寻找这样的前体在最后几年的SN爆炸之前。结合15天仓的观测结果，没有发现任何前兆，我们计算了前兆率的绝对震级依赖上限。在90%的置信水平下，IIb型超新星在爆炸前的最后3.5年内和最后一年的$<0.56$事件中，平均$<0.86$前兆与绝对$R$ -带星等$-14$一样亮。相比之下，SNe IIn中的前体具有高$\gtrsim 5$倍的速率。解开一个低质量恒星包层所需的动能与几周前体的辐射能量相当，而在我们的样本中，最近的SNe可以探测到。因此，质量喷射，如果他们是常见的，在这样的SNe，是辐射效率低，或有持续时间超过几个月。实际上，当使用60天的箱时，在SN 2012 cs之前检测到微弱的前体候选物（$\sim2$ %假警报概率）。我们还报告了SN 2011 dh的前身的检测，在爆炸前的最后两年中没有显示出可检测的变化。SN 2012 P的前身仍然存在，因此可能是一个紧凑的星团，或者是一个不相关的物体。