中子星和夸克星中体粘滞引起的空泡
Cavitation from bulk viscosity in neutron stars and quark stars
摘要：
在中子星和奇异星的密度扰动过程中，夸克物质的体粘滞系数足够高，可以将有效压力降低到相应的蒸汽压以下。这导致了夸克物质分裂成碎片的机械不稳定性，与讨论过的超相对论性重离子碰撞中的空化情况相当。类似的现象可能发生在K介子凝聚的恒星核心。可能的应用致密星现象学包括阻尼振荡和不稳定性的新机制，触发相变，在引力波签名的双星inspiral的变化，和天体物理形成的奇异。在一个更基本的水平上，它指出了在致密恒星中对这些过程的流体动力学处理的可能不足。
英文摘要：
The bulk viscosity in quark matter is sufficiently high to reduce the effective pressure below the corresponding vapor pressure during density perturbations in neutron stars and strange stars. This leads to mechanical instability where the quark matter breaks apart into fragments comparable to cavitation scenarios discussed for ultra-relativistic heavy-ion collisions. Similar phenomena may take place in kaon-condensed stellar cores. Possible applications to compact star phenomenology include a new mechanism for damping oscillations and instabilities, triggering of phase transitions, changes in gravitational wave signatures of binary star inspiral, and astrophysical formation of strangelets. At a more fundamental level it points to the possible inadequacy of a hydrodynamical treatment of these processes in compact stars.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
