原中子星一级相变的多信使与多频带信号
Multi-messenger and multi-band signal from first-order phase transitions in proto-neutron stars
- Goethe Universität（法兰克福歌德大学）
- Trinity College, Dublin（都柏林三一学院）
- Frankfurt Institute for Advanced Studies（法兰克福高等研究院）
机构由 AI 辅助整理，请以论文原文为准。
AI总结：
本文研究原中子星一级相变产生的多频带引力波信号，发现kHz与MHz发射的相关性可约束核物质，并伴随延迟中微子爆发，构成多信使源。
AI中文摘要：
一级相变（PT）在两种尺度上改变致密星：全局上，通过夸克物质核心的增长；微观上，通过夸克气泡的碰撞，同时在kHz和MHz频段驱动引力波（GW）发射。利用一组受约束的模型无关状态方程，我们追踪原中子星通过相变时的吸积驱动演化，并计算由此产生的多频带引力波信号。kHz发射与MHz爆发之间发现的相关性可能有助于约束核物质和相变物理。延迟的中微子爆发应伴随该信号，其延迟由相变的细节决定，从而提供了一个重要的多信使源。
英文摘要：
A first-order phase transition (PT) alters a compact star on two scales: globally, via growth of a quark-matter core, and microscopically, via collision of quark bubbles, driving a simultaneous gravitational-wave (GW) emission in the kHz and MHz bands. Using a constrained ensemble of model-agnostic equations of state, we follow the accretion-driven evolution of proto-neutron stars through the PT and compute the resulting multi-band GW signal. The correlations found between the kHz emission and the MHz burst could help constrain nuclear matter and the physics of the PT. A delayed neutrino burst should accompany the signal, with the delay set by the details of the PT, thus providing a prime multi-messenger source.
