AI 中文总结
本研究提出超爱丁顿吸积黑洞即极亮X射线源的冕区可产生高能中微子，推导了中微子与X射线光度的关联，指出M82 X-1是有望被未来中微子天文台探测的候选源。
AI 中文摘要
我们研究了作为超爱丁顿吸积黑洞的极亮X射线源（ULXs）的冕区产生高能中微子的可能性。采用由盘风供给的冕模型，我们计算了ULX冕区的随机质子加速过程及其产生的中微子辐射。我们首先检验该冕区是否可视为无碰撞等离子体，这是高效非热粒子加速的前提条件。研究发现，仅当质量吸积率低于约5倍爱丁顿吸积率（$\rm \tilde{5}\bar{M}_{Edd}$）时，无碰撞条件才会满足。在该参数范围内，质子被加速至几十TeV的能量，并通过光介子（$p\rm\textit{\textbackslash gamma}$）和强子核（$pp$）相互作用产生中微子。由于冕区密度随吸积率升高而增大，强子核相互作用的重要性随之提升，形成由$p\rm\textit{\textbackslash gamma}$和$pp$过程共同塑造的宽中微子能谱。我们还推导了中微子光度与X射线光度的关联关系：$L_{\rm \nu,tot} \rm \textit{\textbackslash propto} L_X^{2.4}$，并估算了邻近ULXs的中微子流量。结果显示，M82 X-1是最具潜力的观测目标之一，未来中微子天文台有望以90%的置信度探测到它。这些结果表明，超爱丁顿吸积黑洞构成了此前未被探索的高能中微子源新类别。
英文摘要
We investigate the possibility of high-energy neutrino production in coronae associated with ultraluminous X-ray sources (ULXs) as super-Eddington accreting black holes. Adopting the disk-wind-fed corona model, we calculate stochastic proton acceleration and the resulting neutrino emission from the ULX corona. We first examine whether the corona can be regarded as a collisionless plasma, which is a prerequisite for efficient non-thermal particle acceleration. We find that the collisionless condition is satisfied only when the mass accretion rate is lower than ($\sim 5\dot{M}_{\rm Edd}$). In this regime, protons are accelerated up to energies of a few tens of TeV and produce neutrinos through both photomeson ($pγ$) and hadronuclear ($pp$) interactions. The importance of hadronuclear interactions increases with accretion rate owing to the enhanced coronal density, resulting in broad neutrino spectra shaped by both $pγ$ and $pp$ processes. We also derive a correlation between neutrino and X-ray luminosities, ($L_{ν,{\rm tot}} \propto L_X^{2.4}$), and estimate the neutrino flux from nearby ULXs. We show that M82 X-1 is among the most promising targets and may be detectable at the 90\% confidence level by future neutrino observatories. These results suggest that super-Eddington accreting black holes constitute a previously unexplored class of high-energy neutrino sources.
Comments13 pages, 5 figures, 1 table
