多信使天文学时代来自质量谱上紧凑天体的射电瞬变现象

Alessandra Corsi, Avery Eddins, T. Lazio, Eric J. Murphy, R. Osten
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引用次数: 0

摘要

从中子星到超大质量黑洞,各种质量谱系的紧凑天体都是宇宙中一些最具灾难性现象的起源和/或中心引擎。因此,它们与不同时间尺度的射电辐射有关,是多信使天文学的关键目标。在射电波段观测瞬变现象可以揭示其中央引擎、抛射物及其周围环境特性背后的物理学原理,对观测其他信使(如引力波和中微子)收集到的有关其原生信使的信息起到至关重要的补充作用。在这篇论文中,我们总结了利用射电观测对中子星和黑洞进行多信使研究的观测机遇和挑战。我们强调了当前美国国家射电设施的具体贡献,并讨论了对该领域的期望,重点是 2020 年十年调查所建议的设施(如下一代甚大阵列)可能促成的科学。
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Radio transients from compact objects across the mass spectrum in the era of multi-messenger astronomy
Compact objects across the mass spectrum–from neutron stars to supermassive black holes–are progenitors and/or central engines for some of the most cataclysmic phenomena in the Universe. As such, they are associated with radio emission on a variety of timescales and represent key targets for multi-messenger astronomy. Observations of transients in the radio band can unveil the physics behind their central engines, ejecta, and the properties of their surroundings, crucially complementing information on their progenitors gathered from observations of other messengers (such as gravitational waves and neutrinos). In this contribution, we summarize observational opportunities and challenges ahead in the multi-messenger study of neutron stars and black holes using radio observations. We highlight the specific contribution of current U.S. national radio facilities and discuss expectations for the field focusing on the science that could be enabled by facilities recommended by the 2020 Decadal survey such as the next generation Very Large Array (ngVLA).
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