白矮星吸积诱发坍缩中夸克退禁闭的独特中微子信号
Distinct neutrino signatures of quark deconfinement in accretion-induced collapse of white dwarfs
AI总结:
本文通过广义相对论中微子辐射模拟,研究白矮星吸积诱发坍缩中不同QCD相变起始密度下的夸克退禁闭过程,发现其产生独特中微子爆发,可为混合星性质和相变起始密度提供关键约束。
摘要:
我们首次展示了白矮星吸积诱发坍缩(AIC)的广义相对论中微子辐射模拟,采用具有不同一阶QCD相变(PT)起始密度的强子-夸克物质状态方程。坍缩形成原中子星,其因中微子冷却和软化的核-夸克混合物质而收缩,导致由退禁闭夸克物质引发的第二次反弹,并形成稳定的原混合星。独特的、可探测的中微子爆发和狭窄的AIC质量范围可为混合星性质和PT起始密度提供关键约束。
英文摘要:
We present the first general relativistic neutrino-radiation simulations of accretion-induced collapse (AIC) of white dwarfs using hadron-quark matter equations of state with different onset densities of the first-order QCD phase transition (PT). The collapse forms a proto-neutron star that contracts due to neutrino cooling and softened mixed nuclear-quark matter, leading to a second bounce by deconfined quark matter and a stable proto-hybrid star. The distinct, detectable neutrino bursts and narrow AIC mass range could provide key constraints on hybrid star properties and PT onset density.
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