txs0506 +056中微子爆发中中微子- dm相互作用的边界

IF 5.9 2区物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS

Journal of Cosmology and Astroparticle Physics Pub Date : 2025-07-14 DOI:10.1088/1475-7516/2025/07/042

Gabriel D. Zapata, Joel Jones-Pérez and Alberto M. Gago

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引用次数: 0

摘要

我们利用冰立方在2014-2015年间从blazar TXS 0506+056方向观测到的13±5中微子事件过量来约束中微子-暗物质的横截面。我们的分析利用了耀变体中心超大质量黑洞周围的暗物质超密度峰值。在我们的结果中，我们考虑了与不同类型的中微子发射模型和暗物质尖峰特征相关的不确定性，考虑了能量为σ∝(Eν/E0)n的横截面，对于n = 1,0, - 1,2的值。在我们最好的情况下，我们得到的极限与其他活动星系、潮汐破坏事件（TDEs）和IC-170922A事件的极限相竞争。

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Bounds on neutrino-DM interactions from TXS 0506+056 neutrino outburst

We constrain the neutrino-dark matter cross-section using the 13±5 neutrino event excess observed by IceCube in 2014–2015 from the direction of the blazar TXS 0506+056. Our analysis takes advantage of the dark matter overdensity spike surrounding the supermassive black hole at the center of the blazar. In our results, we take into account uncertainties related to the different types of neutrino emission models and the features of the dark matter spike, considering cross-sections that scale with energy as σ ∝ (Eν/E0)n, for values of n = 1, 0, -1, -2. In our best-case scenario, we obtain limits competitive with those derived from other active galaxies, tidal disruption events (TDEs), and the IC-170922A event.

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来源期刊

Journal of Cosmology and Astroparticle Physics 地学天文-天文与天体物理

CiteScore

10.20

自引率

23.40%

发文量

632

审稿时长

1 months

期刊介绍： Journal of Cosmology and Astroparticle Physics (JCAP) encompasses theoretical, observational and experimental areas as well as computation and simulation. The journal covers the latest developments in the theory of all fundamental interactions and their cosmological implications (e.g. M-theory and cosmology, brane cosmology). JCAP''s coverage also includes topics such as formation, dynamics and clustering of galaxies, pre-galactic star formation, x-ray astronomy, radio astronomy, gravitational lensing, active galactic nuclei, intergalactic and interstellar matter.