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arXiv 2005.03700astro-ph.COastro-ph.HEhep-ph
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脉冲星磁层中暗物质振子的共振转换

Resonant Conversion of Dark Matter Oscillons in Pulsar Magnetospheres

Anirudh Prabhu, Nicholas M. Rapidis

摘要:

由于它们的高磁场和等离子体密度,磁共振雷达为超越标准模型(BSM)物理的测试提供了极好的实验室。当轴子或类轴子粒子(axion-like particles,ALP)足够接近光子时,它们可以共振转换为光子,产生戏剧性的电磁信号。我们讨论了从束缚配置的轴子,脉冲星磁层碰撞检测这样的信号的可能性。我们发现,所有的,但dendrified轴子星,$\textit{oscillons}$,潮汐破坏之前,共振转换可以发生。振荡可以有效地转换为光子,导致明亮,短暂的无线电闪光。使用现有的(甚大阵和LOFAR)和即将到来的(平方公里阵)无线电任务观测银河系隆起有可能探测到$m_a \in \left[0.1 \ μ\text{eV}, 200 \ μ\text{eV}\right]$范围内的轴子质量的此类事件,即使轴子在暗物质中所占的比例可以忽略不计。

英文摘要:

Due to their high magnetic fields and plasma densities, pulsars provide excellent laboratories for tests of beyond Standard Model (BSM) physics. When axions or axion-like particles (ALPs) approach closely enough to pulsars, they can be resonantly converted to photons, yielding dramatic electromagnetic signals. We discuss the possibility of detecting such signals from bound configurations of axions, colliding with pulsar magnetospheres. We find that all but the densest axion stars, $\textit{oscillons}$, are tidally destroyed well before resonant conversion can take place. Oscillons can be efficiently converted to photons, leading to bright, ephemeral radio flashes. Observation of the galactic bulge using existing (Very Large Array and LOFAR) and forthcoming (Square Kilometer Array) radio missions has the potential to detect such events for axion masses in the range $m_a \in \left[0.1 \ μ\text{eV}, 200 \ μ\text{eV}\right]$, even if oscillons make up a negligible fraction of dark matter.

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。

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