论文标题

旋转对核心偏移超新星的强子Quark相变的多通电器签名的影响

Impact of Rotation on the Multimessenger Signatures of a Hadron-quark Phase Transition in Core-collapse Supernovae

论文作者

Zha, Shuai, O'Connor, Evan

论文摘要

我们研究了旋转对核心偏转超新星(CCSNE)的多通函信号的影响,并发生了一阶强夸克相变(HQPT)。我们使用\ texttt {flash}代码模拟CCSNE,从具有不同旋转率的20〜 $ M_ \ odot $祖先开始,并使用\ textIt {bastian} 2021使用状态的rdf方程式,该2021开处方了HQPT。发现旋转由于离心支持引起的旋转延迟了HQPT的发作和原反理恒星(PC)所得的动力塌陷。所有具有HQPT的模型都会产生第二次反弹冲击,从而导致成功的爆炸。旋转变形的PC将PC置于第二反弹周围的强力波(GW)发射,峰值幅度的幅度大于$ \ sim10 $的峰值。中性层的第二弹性冲击的突破产生了$ \barν_e$ -rich Neutrino爆发,其光度为Serveral 10 $^{53} $ 〜ERG〜S $^{ - 1} $。在快速旋转模型中,第二反弹之后的PCS脉动在爆发后会在中微子信号中产生振荡。在与HQPT的最快旋转模型中,在第二反弹后立即发现GW中的振荡与中微子信号之间存在明显的相关性。此外,HQPT诱导的塌陷导致PC的旋转能量与重力能量($β$)的比率增加,这是由于世俗的非对称不对称能力而引起的持续GW发射。

We study the impact of rotation on the multimessenger signals of core-collapse supernovae (CCSNe) with the occurrence of a first-order hadron-quark phase transition (HQPT). We simulate CCSNe with the \texttt{FLASH} code starting from a 20~$M_\odot$ progenitor with different rotation rates, and using the RDF equation of state from \textit{Bastian} 2021 that prescribes the HQPT. Rotation is found to delay the onset of the HQPT and the resulting dynamical collapse of the protocompact star (PCS) due to the centrifugal support. All models with the HQPT experience a second bounce shock which leads to a successful explosion. The oblate PCS as deformed by rotation gives rise to strong gravitational-wave (GW) emission around the second bounce with a peak amplitude larger by a factor of $\sim10$ than that around the first bounce. The breakout of the second bounce shock at the neutrinosphere produces a $\barν_e$-rich neutrino burst with a luminosity of serveral 10$^{53}$~erg~s$^{-1}$. In rapidly rotating models the PCS pulsation following the second bounce generates oscillations in the neutrino signal after the burst. In the fastest rotating model with the HQPT, a clear correlation is found between the oscillations in the GW and neutrino signals immediately after the second bounce. In addition, the HQPT-induced collapse leads to a jump in the ratio of rotational kinetic energy to gravitational energy ($β$) of the PCS, for which persistent GW emission may arise due to secular nonaxisymmetric instabilities.

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